# One vs Count Up! Calc

The clearest difference is update cadence: Count Up! Calc at every 4 weeks against One's every 5 months. 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.

One ships an update every 5 months, Count Up! Calc every 4 weeks. The most recent releases landed on October 9, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | One | Count Up! Calc |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 5 months | **Every 4 weeks** |
| Size | 138 MB | 273 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [RieveldtGames](https://appshunter.io/developer/1648036319) | [MICHIKO MATSUMOTO](https://appshunter.io/developer/1896722182) |

## What reviewers say

### One

[App page](https://appshunter.io/ios/app/one-stroke-squares/id6741795949)

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

**In-app purchases:** none


### Count Up! Calc

[App page](https://appshunter.io/ios/app/count-up-calc/id6770182207)

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

**In-app purchases:** none


## Frequently asked questions

### Is One free?

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

### Is Count Up! Calc free?

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

### Do One or Count Up! Calc have ads?

Both One and Count Up! Calc show ads.

### Which is updated more often, One or Count Up! Calc?

One ships an update every 5 months, and Count Up! Calc every 4 weeks. Most recently, One was updated on October 9, 2026 and Count Up! Calc on October 13, 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.*