# Y Combinator vs Project Chiron

The clearest difference is update cadence: Project Chiron at every 5 days against Y Combinator's every 3 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Y Combinator ships an update every 3 weeks, Project Chiron every 5 days. The most recent releases landed on September 18, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Y Combinator | Project Chiron |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (26 ratings)](https://appshunter.io/ios/app/y-combinator/id6464718392/reviews)** | — |
| Number of ratings | **26** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 5 days** |
| Monetization | Free | — |
| Size | 84 MB | 144 MB |
| Requires iOS | 16.4 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Y Combinator](https://appshunter.io/developer/1706164044) | [James Booth](https://appshunter.io/developer/1745107348) |

## What reviewers say

### Y Combinator

[App page](https://appshunter.io/ios/app/y-combinator/id6464718392)

Access Y Combinator's extensive library of startup content, including YouTube videos, podcasts, and essays. It also serves as a mobile client for Hacker News, offering the latest startup news for founders and programmers. Additional features are available for YC-funded founders.

**Highlights:** Organized YC YouTube videos, Startup School content, On-the-go podcast listening, Hacker News mobile client, YC founder-only knowledge base, Access Bookface feed and messages

**In-app purchases:** none


### Project Chiron

[App page](https://appshunter.io/ios/app/project-chiron/id6502346822)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Y Combinator free?

Y Combinator is free to download, with no in-app purchases.

### Is Project Chiron free?

Project Chiron is free to download, with no in-app purchases.

### Do Y Combinator or Project Chiron have ads?

Neither Y Combinator nor Project Chiron shows ads.

### Which is updated more often, Y Combinator or Project Chiron?

Y Combinator ships an update every 3 weeks, and Project Chiron every 5 days. Most recently, Y Combinator was updated on September 18, 2026 and Project Chiron on September 17, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*