r/PublicValidation

Four weeks ago, I released Line Cal - an app that let's users put their calendars on a timeline, with notes and an integrated Kanban task board. I've gotten 40 sign-ups since I launched, am supporting 21 languages, and am continuing to iterate on a consistent basis.

I wanted to share a short demo video of adding an item from the backlog directly onto the timeline to showcase some of what this app can do. Users can use it with or without signing (it uses a local-first architecture, with cloud sync for authenticated users).

I’ve been building a small project called DraftBattle (https://draftbattle.app) and I’m looking for a few basketball fans to test it before launch.

The concept:
You play quick NBA draft battles against real people under random challenges like:
- No MVPs
- 2000s only
- Under 25
- One franchise only
- etc.

But it’s not a free draft.
Every round gives you random teams/positions, so you actually have to build around fit, chemistry, defense, scoring, star power, etc.

After both teams are locked, the game simulates a matchup to decide the winner.

It basically came from all those “who wins this series?” debates with friends 😭

Would genuinely love feedback from NBA fans before we launch early access this week.

https://draftbattle.app

Hey everyone,

We recently crossed almost 1,000 downloads and around $300 in revenue.

Still small numbers, but enough to start learning real things from real users. Here are the biggest lessons so far:

1. ASO matters way more than I expected
Around 80–90% of our downloads come from App Store search. For a mobile app, ASO is not optional. Better keywords, screenshots, translations, and conversion rate can slowly compound into more visibility.

2. Always make it easy for users to give feedback
Some of our best product decisions came from users who reached out directly. A simple email, form, Reddit post, or feedback button can be enough.

3. Onboarding is probably the biggest revenue lever
If users don’t understand the value quickly, they leave. Small changes in onboarding, copy, screen order, and paywall timing can have a real impact.

4. Track everything that matters
You need to know where users come from, where they drop, what they use, what they ignore, and where they convert. Without analytics, you’re mostly guessing.

5. Translations can unlock unexpected markets
We translated the app into 8 languages and were surprised to see traction in places like Russia. Even when revenue is lower, more users means more feedback and more behavioral data.

6. US users monetize much better
For us, the US install-to-payment conversion rate is roughly 2x higher than the rest of the world. Other countries help us learn, but the US is where most of the revenue potential is.

7. Test a paywall during onboarding
Around 68% of our conversions happen before users even sign up. I know onboarding paywalls can be controversial, but for us it clearly matters.

8. Reviews are harder than they look
It took us several attempts to find a review prompt logic that actually worked. Timing matters a lot: not too early, not too late.

Main takeaway: the more data you have, the less you rely on your own assumptions. What you want as a founder doesn’t matter as much as what users actually do.

Our app is Paintly, a small app to learn art history through one artwork a day, in around 2 minutes.

Paintly is available on iOS and Android here if you want to try it:
https://taap.it/getpaintly

Happy to answer questions or debate any of this in the comments.

Hi everyone,

Lately I felt like most news apps and news sites were pushing the same cycle over and over again: wars, politics, crisis, outrage, and constant negativity.

That’s why I built BrightNews, an Android app and Web app that offers a different approach: positive, uplifting, and constructive news from around the world.

BrightNews is a news aggregator focused on stories about science, health, people, nature, innovation, and meaningful progress. Right now it covers the US, UK, Croatia, Slovenia, Serbia, Bosnia and Herzegovina, Germany, France, Japan, Australia, and Brazil.

The point is not to ignore reality, but to bring more balance back into daily life and make room for stories about progress, kindness, health, discovery, and good things happening in the world.

BrightNews is now live on Google Play:

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

If this sounds like something you’d use, check it out, share it, and feel free to tell me what you think.

Indiegogo link, if you want to support further scaling and improvement of the app:

https://www.indiegogo.com/en/projects/brightnews/bright-news

This started as a random idea I kept coming back to. I wanted something simple where you can save small things you might want to try someday. Foods, hobbies, places, or just random ideas that usually end up buried in Notes and forgotten.

I built it using Expo and React Native and tried to keep it as lightweight as possible. The goal was to avoid making it feel like a to do list. There is no pressure and no productivity angle, just a space to collect ideas.

I also recently added widgets, which has been one of my favorite additions. It makes the app feel more present without relying on notifications, which fits the low pressure vibe much better.

The biggest thing I have learned is that simple is actually really hard. Every extra tap or bit of friction becomes obvious very quickly. Onboarding also matters much more than I expected, even for a small app like this.

It is still early, but seeing around 600 people using something I built is a great feeling. It has made about 50$ so far, which is not huge, but it feels like real validation that the idea resonates with at least some people.

Any feedback is welcome, whether positive or critical.

AppStore: Malu: Idea Journal

It feels great to see people starting to download the app. It might be a small number to some, but a start is a start!

Give it a try : Movie Dice on Appstore

https://preview.redd.it/0mpqm7ucbb1h1.png?width=368&format=png&auto=webp&s=7cd6fccb72e5c1a1a041ec249d667f625618d60c

Hey everyone,

We built CastWeave for a problem that kept feeling unnecessarily painful: fixing one spoken line in a video/audio file.

Usually, if there is a mistake in a podcast, interview, dubbing clip, voiceover, explainer video, or course video, you either re-record the line or patch it manually in an editor.

CastWeave lets you:

• upload audio or video
• get speaker-wise transcripts
• edit specific lines
• assign voices to speakers/characters
• regenerate only the parts you want to change

The idea is not to replace full editing tools, but to make spoken-content fixes faster.

Would love to hear what you think of the positioning and whether the workflow is clear.

What do you think guys? Is it visually appealing?

For the people who wants to give it a try : https://apps.apple.com/tr/app/movie-dice-pick-a-random-movie/id6761080433 less