# Y Combinator vs Chiron

The clearest difference is update cadence: Y Combinator at every 5 days against Chiron's every 11 days. 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 5 days, Chiron every 11 days. The most recent releases landed on November 7, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | Y Combinator | Chiron |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (27 ratings)](https://appshunter.io/ios/app/y-combinator/id6464718392/reviews)** | — |
| Number of ratings | **27** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 11 days |
| Monetization | Free | — |
| Size | 100 MB | 241 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 curated content from Y Combinator, including YouTube videos, podcasts, and essays on startups. It also serves as a mobile client for Hacker News, providing the latest startup news for founders and programmers. YC-funded founders get exclusive access to additional community features.

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

**In-app purchases:** none


### Chiron

[App page](https://appshunter.io/ios/app/chiron-ai-math-tutor/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 Chiron free?

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

### Do Y Combinator or Chiron have ads?

Neither Y Combinator nor Chiron shows ads.

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

Y Combinator ships an update every 5 days, and Chiron every 11 days. Most recently, Y Combinator was updated on November 7, 2026 and Chiron on November 8, 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.*