# Irrationals vs Collatz Hailstone Link

The clearest difference is ads: Irrationals at none against Collatz Hailstone Link's shown. Irrationals also leads on update cadence (daily vs weekly) and iOS requirement (10.0 vs 14.0). On price, 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.

Irrationals ships an update daily, Collatz Hailstone Link weekly. The most recent releases landed on October 3, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Irrationals | Collatz Hailstone Link |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/irrationals/id1499298975/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Daily** | Weekly |
| Monetization | Free | — |
| Size | 54 MB | 118 MB |
| Requires iOS | **10.0** | 14.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Saeed Rahmatolahi](https://appshunter.io/developer/1490214852) | [KwangHo Yun](https://appshunter.io/developer/1669492345) |

## What reviewers say

### Irrationals

[App page](https://appshunter.io/ios/app/irrationals/id1499298975)

Challenge your math skills by estimating irrational numbers using guided formulas. Earn certificates for your achievements and share them with friends.

**Highlights:** Estimate irrational numbers, Guided math formulas, Earn certificates, Share achievements

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Collatz Hailstone Link

[App page](https://appshunter.io/ios/app/collatz-hailstone-link/id6780455667)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Irrationals free?

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

### Is Collatz Hailstone Link free?

Collatz Hailstone Link is free to download, with no in-app purchases.

### Do Irrationals or Collatz Hailstone Link have ads?

Collatz Hailstone Link shows ads; Irrationals does not.

### Which is updated more often, Irrationals or Collatz Hailstone Link?

Irrationals ships an update daily, and Collatz Hailstone Link weekly. Most recently, Irrationals was updated on October 3, 2026 and Collatz Hailstone Link on October 9, 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.*