I posted this

``` Hi ,Congrats on the launch. I built a free iOS app also which has chess puzzles.

https://apps.apple.com/us/app/knighty-chess-puzzles/id674524...

Would appreciate feedback. ```

Not sure if that's why it was moved to `stub for off topicness`. I wonder if it is some kind of categorisation logic based on text.

I'm also wondering if it's an automatic classification. Wouldn't expect that on HN, but the posts in there are so random that it almost must be.

As for that specific comment, to be fair, I could actually understand: promoting your own product in someone else's thread without really saying anything at all about the submission (topic) that was posted could be seen as off-topic. I don't really mind it (I don't think I voted on it), but I could see a human also classify it that way

Yeah , that's fair. More than promotion i was trying to suggest i had also built something similar and kind of understand the product space. It's this dev thing, can't shake it off i guess. But i get what you meant.

Apart from that i have a theory that there is a lot of ML based ranking and classification that is happening at the backend.

Why would you in 2025 only build for iOS?

This was a swift app. I wanted a bit more native feel and didn't go for react native.

Thanks. Currently i am using the HN api (https://github.com/HackerNews/API) . It's a read only API and doesn't support writes. I heard that might be away to do this with a webview initially, haven't explored that yet.

Hi ,Congrats on the launch.

I built a free iOS app also which has chess puzzles.

https://apps.apple.com/us/app/knighty-chess-puzzles/id674524...

Would appreciate feedback.

Nice app, I dig the logo.

Thanks man. I would also suggest creating a leaderboard with XP for gamification

Hey , i would also suggest posting in r/chess

Thanks man, I will definitely do that.

Isn’t it advice from YC itself to launch multiple times :)

You can checkout h for hacker news. It has a search API over algolia.

I asked what's the best time to make a show HN post and got the below output.

When should you hit “Submit” on your Show HN? TL;DR The historical data say your odds of going viral improve when you post:

Saturday 18 UTC (≈ 2 PM US-Eastern, 11 AM US-Pacific)

Early Sunday 02 – 04 UTC (Saturday evening in the Americas)

Week-day late morning UTC, especially

Tuesday 11 – 15 UTC (7 – 11 AM US-Eastern)

Wednesday 15 UTC

Friday 12 – 14 UTC

These slots combine the highest average scores with a healthy number of past posts, meaning success isn’t due to just a few outliers.

Cool project. I too did something similar , built a HN client app for iPhone

https://apps.apple.com/us/app/h-for-hackernews/id6744145932

Yeah, the app is highly misleading and many people think they are official. I echo your sentiment on ads, that was one of the reason that pushed me to build this app as well.

Cool project. I am going to use this for a personal project for sure.

thank you! Let me know if you have any suggestions after you try it