# PrimeXTime vs Count Up

The clearest difference is update cadence: Count Up at every 10 days against PrimeXTime's every 4 months. On price, rating, review sentiment and ratings volume there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for PrimeXTime against 5.0 for Count Up. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

PrimeXTime ships an update every 4 months, Count Up every 10 days. The most recent releases landed on September 28, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | PrimeXTime | Count Up |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/primextime/id1253706544/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/count-up-math-game/id1431894510/reviews) |
| Number of ratings | **2** | 1 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 10 days** |
| Monetization | Free | Free |
| Size | 6 MB | 22 MB |
| Requires iOS | 17.6 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Rick Hutchinson](https://appshunter.io/developer/1253697991) | [Mento Apps Ltd](https://appshunter.io/developer/1428570991) |

## What reviewers say

### PrimeXTime

[App page](https://appshunter.io/ios/app/primextime/id1253706544)

Engage your mind with a unique number-based puzzle game. Start with a random number and strategically divide by single-digit primes. Bump the number by multiplying by 10 and adding a digit to reach 1 and win.

**Highlights:** Number division by primes, Strategic bumping mechanic, Goal to reduce number to 1, Brain exercise gameplay, Simple, intuitive interface

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

**In-app purchases:** none


### Count Up

[App page](https://appshunter.io/ios/app/count-up-math-game/id1431894510)

This math puzzle game challenges your mind by combining number tiles and operators to reach target totals. It helps improve mental arithmetic and problem-solving skills with no time pressure. Play offline, unlock achievements, and enjoy various grid sizes.

**Highlights:** Boost mental arithmetic, Master addition, subtraction, multiplication, division, Play offline, Unlock achievements, Multiple grid sizes, Progress tracking

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

**In-app purchases:** none


## Frequently asked questions

### Is PrimeXTime free?

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

### Is Count Up free?

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

### Which has better reviews, PrimeXTime or Count Up?

PrimeXTime and Count Up are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.

### Do PrimeXTime or Count Up have ads?

Neither PrimeXTime nor Count Up shows ads.

### Which is updated more often, PrimeXTime or Count Up?

PrimeXTime ships an update every 4 months, and Count Up every 10 days. Most recently, PrimeXTime was updated on September 28, 2026 and Count Up on October 6, 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.*