# Irrationals vs Sequence Master Challenge

The clearest difference is update cadence: Irrationals at daily against Sequence Master Challenge's every 4 days. Irrationals also leads on iOS requirement (10.0 vs 18.0). 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.

Irrationals ships an update daily, Sequence Master Challenge every 4 days. The most recent releases landed on October 3, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Irrationals | Sequence Master Challenge |
| --- | --- | --- |
| 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 | No |
| Update frequency | **Daily** | Every 4 days |
| Monetization | Free | — |
| Size | 54 MB | 10 MB |
| Requires iOS | **10.0** | 18.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Saeed Rahmatolahi](https://appshunter.io/developer/1490214852) | [HAKON FOSEIDE](https://appshunter.io/developer/1833933325) |

## 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


### Sequence Master Challenge

[App page](https://appshunter.io/ios/app/sequence-master-challenge/id6753905419)

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

**In-app purchases:** none


## Frequently asked questions

### Is Irrationals free?

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

### Is Sequence Master Challenge free?

Sequence Master Challenge is free to download, with no in-app purchases.

### Do Irrationals or Sequence Master Challenge have ads?

Neither Irrationals nor Sequence Master Challenge shows ads.

### Which is updated more often, Irrationals or Sequence Master Challenge?

Irrationals ships an update daily, and Sequence Master Challenge every 4 days. Most recently, Irrationals was updated on October 3, 2026 and Sequence Master Challenge on September 30, 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.*