u/lockifyapp

I wanted a private storage app that didn't depend on ads, tracking or always being online.

So I built Lockify. It encrypts files locally and can optionally disguise itself as a normal calculator.

Enter the PIN → tap = twice → the vault opens.

It has since evolved into much more than the original calculator idea:

• 🔒 Local encryption + biometric/PIN unlock
• ☁️ Cloud Sync
• 🎭 Disguise Mode
• 🔐 Decoy Vault
• 📱 Motion Lock
• 📂 File/folder organization
• 📝 Encrypted Notes (currently being built)

After five months, it has reached 12K+ downloads, 4.3K+ installed users, and 4.7★ from 228 ratings. I built and maintain it solo alongside a full-time job.

Google Play:
https://play.google.com/store/apps/details?id=com.leo.lockify

Five months ago, Lockify was just an experiment I worked on after my full-time job.

The original idea was simple:

Build a privacy vault that actually feels private. No ads. No tracking. Local encryption. Offline-first.

The calculator disguise was the interesting hook. But once people started using it, the roadmap changed completely.

Users asked for:

☁️ Cloud Sync
🔐 Decoy Vault
📱 Motion Lock
🎭 Disguise Mode
📂 Better organization
📝 Encrypted Notes

So I kept building.

Today Lockify has:

12K+ downloads
4.3K+ installed users
4.7★ from 228 ratings

I also launched Premium last month. It has generated ₹17K+ from 16 purchases so far. The revenue isn't huge, but seeing someone actually pay for something I built after work was a pretty significant moment. Now I'm working on Encrypted Notes and trying to turn what started as a side project into a sustainable product. Still coding. Still learning. Still doing distribution myself.

Google Play:
https://play.google.com/store/apps/details?id=com.leo.lockify

Lockify – Privacy Vault with Cloud Sync

I built Lockify because I wanted an Android vault that didn't need ads, tracking or a constant internet connection to protect private files.

It provides:

🔒 Local encryption + biometric/PIN unlock
☁️ Cloud Sync
🎭 Calculator disguise & Disguise Mode
🔐 Decoy Vault + Motion Lock
📂 Search, folders & organization

Lockify has now crossed 12K+ downloads, with 4.3K+ installed users and a 4.7★ rating from 228 ratings.

I'm currently working on Encrypted Notes, with more user-requested features coming next.

Google Play:
https://play.google.com/store/apps/details?id=com.leo.lockify

About a month ago I posted Lockify here after it had crossed 7.5k installs. A lot has changed since then.

Lockify has now crossed:
• 11.8k+ installs
• 4.3k+ installed users
• 220 ratings
• 4.76★ average rating

And Premium is now live. For anyone seeing Lockify for the first time, Lockify is an Android vault designed around one simple idea - Your private files shouldn't need ads, trackers or a constant internet connection to stay protected.

It provides:
• Local encryption
• Biometric / PIN unlock
• Optional calculator disguise
• No ads
• No tracking
• Offline-first operation

Premium now adds:
☁️ Cloud Backup & Sync
🎭 Disguise Mode
🔒 Decoy Vault
📱 Motion Lock
🚀 Future premium features

The calculator disguise is still probably the feature people notice first. But the feedback I've received over the last few months has pushed the app in a different direction. People asked for better backups, better organization, more ways to protect the vault, more ways to recover their data.

And now, more ways to make the app feel like part of their phone rather than just another vault.

That's why I'm currently working on Encrypted Notes. And there are more things planned based directly on user feedback:
• More app customization / experience improvements
• Slideshow / wallpaper features
• Vietnamese language support
• More security and usability improvements

I'm still building Lockify solo alongside my full-time job, so every update is driven by what actual users ask for rather than trying to throw dozens of features into the app at once. Premium has also been a surprisingly good validation.

Since launching on July 3rd:
• 14 users have purchased Premium
• ₹17k+ in revenue
• And the app continues to maintain a 4.7★+ rating

It's still a very small product, but seeing people actually pay for something I built after work has been incredibly motivating.

If you've been looking for a privacy-focused Android vault, I'd genuinely love for you to give Lockify a try.

Google Play: https://play.google.com/store/apps/details?id=com.leo.lockify

And if you've used Lockify before, I'd especially love to hear what you'd want me to build next.

​

A month ago I launched Premium for my Android app, Lockify.

Today I finally crossed ₹10,000 in Play Console earnings.

For context, Lockify is a privacy-focused Android vault that I've been building solo after work. It started as a simple calculator-disguised vault and has gradually grown into a proper product with encrypted backups, cloud sync, biometric security, decoy vaults and other privacy features.

Premium launched on July 3rd.

From July 3 → August 10:

• ₹10,017 in Play Console earnings

• 1 month since Premium launched

• 9k+ downloads at the time of the launch period

• 4k+ active devices

• 4.7★+ average rating

The interesting part is that I didn't have a huge launch or paid acquisition campaign.

Most of the growth has come from Reddit, word of mouth, Google Play discovery, and a few community features.

The first few paid users were especially motivating. Seeing someone actually pay for something I built after work hours made the project feel very different from when it was just a side project.

I'm still very early, but this has taught me something important:

Getting people to install an app is one problem.

Getting them to trust it enough to pay for it is a completely different problem.

Now I'm focusing less on simply adding features and more on retention, reliability, conversion and making Premium genuinely worth paying for.

For other indie Android developers:

How did your first month of Play Store revenue compare with your expectations?

App Name: Lockify

What it does:

Lockify is an Android privacy vault that encrypts your files locally and can optionally disguise itself as a calculator. Everything is designed around privacy with no ads, no tracking, and offline-first support.

Key Features:

🔒 Local encryption with Calculator & Disguise Mode

☁️ Cloud Sync, Decoy Vault & Motion Lock

📂 Encrypted Backup, Search & Folder Organization

Goal: Feedback

Over the past few months, Lockify has grown to 10,000+ downloads and a 4.8★ rating, thanks largely to feedback from the Android community.

One thing I've learned is that users don't just want to protect files anymore, they want a private space for everything important.

So the next major update I'm building is Encrypted Notes.

The idea is simple:

Keep sensitive text alongside your encrypted files

Everything stays encrypted on-device

Sync securely if Cloud Sync is enabled

Still no ads and no tracking

I'm currently polishing the Notes experience before release, and I'd love feedback while it's still in development.

Link: https://play.google.com/store/apps/details?id=com.leo.lockify⁠

So 4 months in, Lockify now has 10.1k downloads, 4.57k active users, 4.84 average rating, ₹5.8k in revenue. I began developing Lockify with lots of doubts and ambitions. This post comes from me and not any ai tool, still can't believe how time flew by and here I am. Working after office everyday for 7 months straight, development to distribution, everything done daily in my solo journey. The journey feels worth it and somewhere I feel joy that I kept the promise I made to myself. ❤️

Most privacy apps focus on encryption.

I started wondering about something else:

What if someone is looking over your shoulder?

That's why I built Lockify.

It can look like a normal calculator, but that's only part of it.

Recent additions include:

🔒 Decoy Vault - Create a second vault with harmless files if you're ever forced to unlock the app.

🎭 Disguise Mode - Change the app's appearance so it doesn't stand out on your phone.

☁️ Encrypted Cloud Sync - Keep your vault backed up without sacrificing end-to-end encryption.

📱 Motion Lock - Automatically lock the vault when your phone moves after being left unattended.

Everything else is still the same:

• Fully offline support
• Local AES encryption
• No ads
• No tracking
• Biometric + Vault PIN protection

Over the past few months, Lockify has grown to 9.8k+ downloads, 4.5k+ active devices, and a 4.75★ rating, all through community feedback and continuous updates after work.

I'm currently working on improving cloud sync performance with multithreading and making the app even more reliable.

I'd love some honest Android feedback:

Which matters more to you in a privacy app?
Strong encryption, stealth features, or seamless backup & recovery?

Google Play:
https://play.google.com/store/apps/details?id=com.leo.lockify

Hey r/iMadeThis,

About three months ago I started building an Android app after work because one question kept bothering me:

If a privacy app shows ads, tracks users, or constantly depends on the internet... is it really private?

So I built Lockify around a few simple principles:

• No ads
• No tracking
• Local encryption
• Offline-first

It can even disguise itself as a calculator, but something interesting happened after launch.

People downloaded it because of the calculator.

They stayed because they trusted it with files they genuinely didn't want to lose.

That completely changed what I spent my time building.

Instead of adding more gimmicks, I focused on things users kept asking for:

• encrypted backup & restore
• cloud sync
• folder import
• search & organization
• decoy vault
• disguise mode
• motion lock
• dozens of reliability and usability improvements

This week another milestone happened.

The app is now approaching 10,000 downloads, has 4,400+ active devices, and maintains a 4.72★ rating on Google Play.

I also launched Premium.

That was honestly more nerve-racking than launching the app itself.

When people start paying for something you've built, every bug feels more serious, every update matters more, and every review carries a lot more weight.

I'm still building the app solo while working full-time, and there's still a long roadmap ahead.

Looking back, the biggest lesson wasn't learning Android.

It was learning that trust is something you earn one update at a time.

I'd love to know from other makers here:

What milestone made your side project start feeling like a real product instead of "just another project"?

Google play: https://play.google.com/store/apps/details?id=com.leo.lockify

Three months ago I launched Lockify, a privacy-first Android vault built around one idea:

A privacy app should actually respect your privacy.

That meant:

• No ads
• No tracking
• Local encryption
• Offline-first
• Optional calculator disguise

Since launch, more than 9,000 people have installed it, with 4,100+ active devices and a 4.7★ rating.

The biggest surprise?

Almost nobody asked for more "secret" features. Instead, people wanted reliability.

Backups.
Recovery.
Protection if someone gets hold of the phone.
A way to separate sensitive files.

So that's what I've spent the last few months building. Today, I finally launched Lockify Premium, which adds:

🔒 Decoy Vault
🎭 Disguise Mode
☁️ Cloud Backup & Sync
📱 Motion Lock
✨ All future premium features

I'm still building it solo after work, and every premium purchase goes straight back into development.

I'd genuinely love feedback on one thing:

When you're paying for a privacy app, what convinces you it's worth paying for instead of using a free alternative?

Google Play:
https://play.google.com/store/apps/details?id=com.leo.lockify

Last month, HowToMen featured Lockify on YouTube, and I honestly didn't expect what happened next. Thousands of new users tried the app, and the feedback completely changed my roadmap. For anyone who hasn't seen it before, Lockify is a privacy-focused Android vault that can optionally disguise itself as a calculator.

Core principles are still the same:

• No ads
• No tracking
• Local encryption
• Offline-first
• Biometric unlock
• Optional calculator disguise

If calculator mode is enabled, entering your PIN and tapping = twice opens the hidden vault. Since the feature, I've focused almost entirely on improvements requested by users. Some of the biggest additions include:

🔐 Encrypted Backup & Restore
☁️ Local & Cloud Sync
🔏 Decoy Vault
🎭 Disguise Mode
📱 Motion Lock
📂 Folder Import
🔎 Search for files & folders
⚡ Background Import & Export
📋 Grid/List layouts & sorting
📄 File & Folder properties
🎨 Themes
🧮 Calculator History
🔒 Custom Vault PIN

The app has also reached a few milestones:

• 8.8k+ installs
• 4.1k+ active devices
• 4.8★ average over the last 28 days
• Premium launched this week, with the first Lifetime supporters joining on day one

One thing hasn't changed, though. The calculator disguise might get people to install Lockify, but almost every major feature since launch has come directly from community feedback. So thank you to everyone here who downloaded it, reported bugs, suggested features, or simply gave it a try. I'm already working on the next updates, and I'd genuinely love to hear what you'd like to see next.

Google Play:

https://play.google.com/store/apps/details?id=com.leo.lockify

After months of building after work, Lockify Premium is finally live.

What started as a simple idea -

"What if a privacy app actually respected your privacy?"

has now grown to around 9,000 installs, 4,000+ active users, and a 4.7★ average rating, all without paid marketing.

For anyone new here:

Lockify is an Android vault that can optionally disguise itself as a calculator.

Everything is encrypted locally, works offline, and has no ads or tracking.

Premium adds features that users had been requesting for months, including:

• ☁️ Cloud Backup & Sync
• 🎭 Disguise Mode
• 🔒 Decoy Vault
• 📱 Motion Lock
• 🚀 Future premium features included

One thing I've learned while building this:

People initially download Lockify because the calculator disguise looks interesting.

They stay because they trust it with files they don't want to lose.

That completely changed how I prioritize development. Reliability, backups, and security now matter far more than adding flashy features.

Google Play recently tested Lockify again, bringing in hundreds of new users in just a few days, and the feedback has been incredibly helpful for shaping what's next.

I'm already working on faster cloud sync, multithreading improvements, and another round of usability updates.

I'd genuinely love feedback from the Android community.

If you were choosing a privacy vault today, what's the one feature that would make you trust it enough to store your personal files?

Google Play:
https://play.google.com/store/apps/details?id=com.leo.lockify

A few months ago I built Lockify because I couldn't find an Android vault app that matched what I wanted.

My priorities were simple:

• local encryption
• offline-first
• no ads
• no tracking

Over the past few months, thousands of users have tried it and the feedback has completely reshaped the app. Features like encrypted backup, folder import, background import/export, search, and better organization all came directly from user requests.

Yesterday I launched the first Premium version.

Not because I wanted to put existing features behind a paywall, but because people started asking for things that require significantly more development and ongoing infrastructure.

Premium now includes features like:

• ☁️ Cloud Sync
• 🎭 Disguise mode
• 🔏 Decoy vault
• 📱 Motion Lock

One decision I felt strongly about was rewarding the people who trusted the app early.

Anyone who installed Lockify before Premium launched can permanently claim Premium for free as an Early Supporter. I'm curious how other developers approach this:

When you're building a privacy-focused app, where do you draw the line between keeping the app sustainable and keeping users happy?

I'd genuinely love to hear different perspectives.

Play Store: https://play.google.com/store/apps/details?id=com.leo.lockify

When I launched Lockify a few months ago, I thought people would care most about one thing:

The calculator disguise. It looks like a normal calculator, works like one, and if you enter your PIN and tap = twice, it opens an encrypted vault. That feature definitely got attention. But after thousands of installs, something interesting happened. Almost nobody asked for more stealth features. Instead, people kept asking for things that made the app more practical:

• encrypted backup
• background import/export
• folder import
• search
• better organization
• sync across devices

Looking back, that's exactly how Lockify has evolved. Today it includes all of those improvements, and I'm now finishing the biggest update yet.

The next release introduces features like:

• Cloud Sync
• Decoy Vault
• Additional disguise mode
• Motion Lock

It's funny how different the roadmap looks compared to what I imagined on day one. The app started as a privacy experiment. Now it feels more like building a tool that people genuinely rely on. One thing hasn't changed though:

Privacy still comes first.

No ads.
No tracking.
Local encryption remains the foundation.

If you were designing your ideal privacy vault, what's the one feature you'd refuse to compromise on?

Play Store:
https://play.google.com/store/apps/details?id=com.leo.lockify

Hey r/iMadeThis,

A few months ago I built my first Android app after work hours.

It started as a simple idea:

Why do so many privacy apps have ads, trackers, and cloud dependencies?

So I built Lockify:

• encrypted locally on-device
• no ads
• no tracking
• offline-first
• optional calculator disguise

The app was just a side project and I wanted everything available to everyone. Then something unexpected happened. People actually started using it.

The app crossed:
• 7k+ installs
• 3.1k+ active devices
• 130+ ratings

And users kept requesting bigger features:
• encrypted backup
• folder import
• search
• organization tools
• sync between devices
• decoy vaults
• additional disguise modes

The more the app grew, the more I realized that building privacy features is one thing. Maintaining them long-term is another. So for the first time I'm preparing a Premium release. Not because I want to lock everything behind a paywall. But because features like sync and ongoing development have real costs attached to them.

One decision I felt strongly about, everyone who joined early will be grandfathered in and keep access to the upcoming Premium features for free. It feels like the right way to thank the people who helped shape the app through feedback, bug reports and feature requests. Looking back, the weirdest part isn't that thousands of people installed something I built. It's that a project which started as "let's see if this works" is slowly turning into something people genuinely depend on.

For builders here, when did you realize your side project had become more than just a side project?

Play Store: https://play.google.com/store/apps/details?id=com.leo.lockify

A few months ago I launched Lockify:

An encrypted Android vault that can optionally disguise itself as a calculator. Since then, user feedback has shaped almost every major update.

Recent additions included:

• encrypted backup & restore
• background import/export
• folder import
• search
• sorting & organization
• themes
• calculator history
• lots of reliability improvements

Now I'm preparing the next major release.

Features currently being worked on:

☁️ Cloud Sync
🔄 Auto Sync
🎭 Decoy Vault
🧮 Additional Disguise Modes
📱 Motion Lock

The interesting part:

None of these features were in the original roadmap. Most came directly from conversations with users and feature requests. The app will eventually introduce a premium tier to support ongoing development. But everyone who joins before premium launches will be able to claim those upcoming premium features for free as a thank-you for helping shape the product early.

Core principles still remain:

• no ads
• no tracking
• encrypted locally
• privacy-first design

Curious, which upcoming feature would matter most to you?

Cloud Sync, Decoy Vault, Motion Lock, or something else entirely?

Play Store:
https://play.google.com/store/apps/details?id=com.leo.lockify

Play store: https://play.google.com/store/apps/details?id=com.leo.lockify

Hey r/iMadeThis,

A few months ago I started building my first Android app after work. At the time, I thought the difficult part would be the coding. I was wrong. The app is called Lockify.

It started as a simple idea:

Most vault apps I tried had ads, tracking, cloud dependency, or permissions that felt strange for a privacy product. So I built one with a few rules:
• no ads
• no tracking
• local encryption
• offline-first design

It can also disguise itself as a calculator. Enter a PIN and tap = twice, and it opens a hidden vault. The coding was challenging, but manageable. The part I didn't expect was what happened after launch. People started using it for things that actually mattered to them.

Private photos.
Documents.
Backups.

And suddenly every bug felt different. A broken animation is annoying. A failed import. A failed export. A failed backup.

Those feel much more serious when someone trusts your app with important files.

Over the last few months I've ended up shipping:
• encrypted backup & restore
• background import/export
• folder import
• search
• sorting & organization tools
• themes
• calculator history
• countless bug fixes and UX improvements

The app recently crossed:
• 6.5k+ installs
• 3.1k+ active users
• 4.6★+ rating

Still building it solo while working full-time. One thing I've learned is building software is one thing but building something people trust is something else entirely. That's probably been the most valuable lesson from the whole project.

Curious: What's something you've built that became more important to people than you originally expected?

Last month Lockify was featured by HowToMen, and the feedback helped shape the next wave of updates.

For anyone who hasn't seen it before:

Lockify is a privacy-focused Android vault that can optionally disguise itself as a calculator.

The idea is simple:

• No ads
• No tracking
• Local encryption
• Biometric unlock
• Fully offline support

If calculator mode is enabled, entering your PIN and tapping = twice opens the hidden vault.

Over the last month I've been focused on improving reliability, organization and usability based directly on user feedback.

Recent additions include:

🔐 Encrypted Backup & Restore
📂 Folder Import Support
🔎 File & Folder Search
📋 Grid & List Layouts
📊 Sort by Name, Date & Size
📄 File & Folder Properties
🎨 Theme Support
🧮 Calculator History
⚡ Background Import & Export
🔒 Custom Vault PIN

The app has now grown to:

• 6.5k+ installs
• 3.2k+ active users
• 126+ ratings
• 4.5★+ rating

Everything is still developed and maintained solo.

One thing I've learned:

People initially notice the calculator disguise.

Long-term users care much more about backup, organization, reliability and control.

That's where most of the development effort goes now.

Google Play:
https://play.google.com/store/apps/details?id=com.leo.lockify

Looks like a normal calculator.

You can actually use it: add, subtract, divide...

But if you enter a PIN and tap = twice, it opens an encrypted vault.

I launched Lockify a little over 2 months ago.

Since then it has grown to: • 5k+ installs • 2.5k+ active users • 4.5★+ rating

The calculator disguise gets most of the attention.

But real users kept asking for reliability, backup and convenience features.

So the latest updates added:

• encrypted backup & restore • background import/export • folder import • file search • sorting by name, size & date • grid/list layouts • custom vault PIN • calculator history • themes support • file & folder properties

And the next major update is bringing:

☁️ Encrypted cloud sync 📱 Flip to close 🔒 More premium privacy features

Core principles still haven't changed:

• fully offline vault support • no ads • no tracking • encryption on-device

It's been interesting watching the project evolve from a "calculator trick" into something people actually depend on for storing important files.

Curious:

What feature would be non-negotiable for you in a privacy-focused vault app?

Get the app here 👉🏻 https://play.google.com/store/apps/details?id=com.leo.lockify