i want to use chargily api with my .net back end any one can help ??

Hey everyone, I've been working on a private vault app for Android called VaultCam and just published it on the Play Store. Wanted to share it here since this community seems to appreciate this kind of thing.

The core idea: your private photos, videos, notes, and passwords ,encrypted on your device, with no server, no cloud, no subscription. But the features go way beyond just "hiding photos."

1. Break-in selfie

Every wrong PIN attempt silently activates the front camera . The intruder's photo is saved with a timestamp and the PIN they tried. After 5 wrong attempts, the app shows a fake "Application data corrupted please reinstall" error screen so they give up thinking the app is broken.

The app appears on your home screen as a normal calculator. It actually works as a calculator. To open the vault, you type your PIN then press "=". ( even if somebody is watching your screen it will show random numbers not your real PIN on screen ). You can also disguise it as a clock app or a notes app instead.

3. Dual vault (decoy system)

You set two PINs. One opens your real vault. The other opens a decoy vault with innocent content. If someone ever forces you to unlock it, you give them the decoy PIN. They see the fake vault and never know the real one exists.

4. Ghost mode

Shake your phone while the vault is open → instantly closes and shows the calculator, like it was never there. Zero back-stack, so pressing back doesn't return to the vault.

5. Snatch detection

If someone grabs the phone out of your hand while it's open, the accelerometer detects the sudden movement and locks the vault immediately.

6. Secure in-app camera

Take photos directly inside the vault. They never appear in your gallery encrypted immediately after capture and stored straight in the vault.

7. Secure notes

Write encrypted text notes directly inside the vault. Diary entries, private thoughts, anything. Stored with the same AES-256-GCM encryption as your photos nobody can read them without your PIN.

8. Password manager

Store passwords, PINs, WiFi keys, and any sensitive credentials inside the vault. It's not a separate app — it lives inside the vault so it's protected by the same disguise, dual vault, and break-in selfie system automatically.

9. Guardian PIN

A third PIN that doesn't wipe anything but locks the vault for 1–24 hours. Useful if you're pressured but don't want to give the real PIN and don't want to trigger a wipe either.

10. TimeLock

Configure the vault to only open during specific hours. Outside those hours, even the correct PIN is rejected.

11. Encrypted backup

Export the entire vault as a .vcbak file re-encrypted with a separate password to local storage or cloud. Everything stays encrypted even in the backup.

The encryption:

AES-256-GCM per file. Each file gets its own unique random key. Your PIN is never stored — it goes through PBKDF2 (100,000 rounds) to derive a master key that lives only in RAM and gets wiped the moment the vault locks. The metadata database (SQLCipher) is also encrypted. Nothing unencrypted ever touches the disk.

No backend. No server. No subscription. 100% free.

Everything runs locally. to be honest the app makes money through AdMob ads (banner at the bottom, occasional interstitial), well not making any money but should make money thiss way. All features are unlocked for everyone.

salam, i'm not sure if it's the right sub but i need some advice.

i want to have a visa card, for now mostly to make online payments and make a paypal to recieve money if i sell digital product.
but i would need it later if i want to work in freelance in IT.

i'm not sure which is the best option for me now, i'm 20yo uni student and i have eu citizenship. the options i found are:
- wise
- revolut
- a visa account ( and ig bank account ) in some bank like el baraka or salam

thank you in advance!

Essalam alaikom,

Hello everyone so as the title says I'm offering free video editing. I have been learning video editing lately and I couldn't build my portfolio since I never had clients or found licensed raw footages to work on and put on my portfolio. I am currently learning the TikTok and reels type of editing if you're interested. And If you know where I can find raw licensed footages it'd be so kind of you to share it with me. Thanks :)

i have iPhone 15 pro the photos look great when i take them with my phone but when i upload them to Instagram it loses all the details i use the high quality option in instagram settings but still didnt improve much what can i do ? should i change the from of the photo or something else ?

Hello, I’m looking for a graphic designer preferably from Algiers to develop a complete visual identity and supporting brand materials for a new company. Please share your portfolio and pricing.

Hey, I'm algerian (basically), and into cybersecurity, so I'm looking if there is any hackathons or cybersecurity events in Algeria. I hope to get any information about, and I appreciate your time!

Hello everyone, I was woundering what decision is better, to get an Idoom 4G modem that comes with 1TB or Tenda 4G03 pro modem router that has bandwidth control feature and two exernal antennas ? The tenda also shows real time download and upload speed of every connected device and allows the administrator to limit the speed for each device individually.

I heard the Idoom 4G doesn't come with external 4G antennas, so you would have to buy them if they have a connector for them on the modem.

i was about to start learning website seo/geo as a services to local businesses , but after some research i found it’s not a lead strategy that works in this market regarding that we don’t google things instead i found that socialmedia ads is the common marketing strategy.
if anyone has experience in this i would be grateful to hear from

Any one use linux ?if u do what is ur specs and ur use and what disro if u like to add ur experience

I'm building a service platform targeting users in Algeria, and I'd love feedback from people who have experience with the Algerian market.

A few questions:

- What are your best SEO tips specifically for ranking in Algeria (Google.dz/local search)?

- Are there any features you'd expect from a modern service platform in Algeria besides its core functionality?

- What's the best way to collect credible, trustworthy reviews for a service in Algeria? Since Google Reviews aren't always practical for every type of service, what has worked well for you?

I'm looking for practical advice and real-world experience.

Salam folks I have an iPhone 12 chritou from Apple Store in Poland in 2022 battery health is 77% , storage 64GB jamais t3awed it’s not cracked or مخدوش I still have the box with its thing wesh ndir Bach nbi3ou w Ch7al yjibli ki nbi3ou please answer cuz I need the money and what should I do to sell it
Thank you

hello , im intrested in getting the framework 16 laptop but since its a small company in the US , u won't find it in the algerian market . i tried searching in social media and websites but nothing . is there a way i can contact an algerian tech page and pre-order it as a special order

Is anyone here preparing for the Cybersecurity PhD entrance exam at Sidi Abdellah? Are there any resources or study materials you recommend for revision?