# 30 Seconds vs Prime Not Prime

The clearest difference is rating: 30 Seconds at 5.0 against Prime Not Prime's 4.3. 30 Seconds also leads on device support (3 vs 1) and iOS requirement (9.0 vs 17.0). Prime Not Prime's advantage is update cadence (monthly vs every 9 months) and ratings volume (6 vs 1). On price, review sentiment, ads and in-app purchases there is nothing between them.

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

30 Seconds holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: Prime Not Prime has 6 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

30 Seconds ships an update every 9 months, Prime Not Prime monthly. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | 30 Seconds | Prime Not Prime |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/30-seconds-fast-math/id980479414/reviews)** | [4.3 (6 ratings)](https://appshunter.io/ios/app/prime-not-prime/id6738664674/reviews) |
| Number of ratings | 1 | **6** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Monthly** |
| Monetization | Free | Free |
| Size | 14 MB | 15 MB |
| Requires iOS | **9.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Pouria Almassi](https://appshunter.io/developer/980479413) | [Richard Witherspoon](https://appshunter.io/developer/1690898003) |

## What reviewers say

### 30 Seconds

[App page](https://appshunter.io/ios/app/30-seconds-fast-math/id980479414)

Test your mental math abilities by solving as many equations as possible within a 30-second time limit. This app focuses on addition, subtraction, and multiplication, with plans to add more operations. Track your progress and aim for new high scores.

**Highlights:** Solve math equations quickly, Improve mental math skills, Includes addition, subtraction, multiplication, Track high scores, 30-second timed challenges

**Features:** macOS Compatibility

**In-app purchases:** none


### Prime Not Prime

[App page](https://appshunter.io/ios/app/prime-not-prime/id6738664674)

A fast-paced game that combines number recognition with a swiping mechanic. Players swipe right for prime numbers and left for non-primes, aiming to build long streaks. It's designed to be both educational and entertaining, with leaderboards for competitive play.

**Highlights:** Addictive swiping gameplay, Test prime number knowledge, Build streaks and complete challenges, Global leaderboards, Vibrant visuals and animations

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

**In-app purchases:** none


## Frequently asked questions

### Is 30 Seconds free?

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

### Is Prime Not Prime free?

Prime Not Prime is free to download, with no in-app purchases.

### Which has better reviews, 30 Seconds or Prime Not Prime?

30 Seconds is rated higher. 30 Seconds averages 5.0 out of 5 from 1 ratings, while Prime Not Prime averages 4.3 from 6 ratings.

### Do 30 Seconds or Prime Not Prime have ads?

Neither 30 Seconds nor Prime Not Prime shows ads.

### Which is updated more often, 30 Seconds or Prime Not Prime?

30 Seconds ships an update every 9 months, and Prime Not Prime monthly. Most recently, 30 Seconds was updated on November 1, 2026 and Prime Not Prime on October 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.*