# Spread Test Calculator vs Count Keeper

The clearest difference is ads: Spread Test Calculator at none against Count Keeper's shown. Spread Test Calculator also leads on iOS requirement (11.0 vs 15.6). Count Keeper's advantage is update cadence (fortnightly vs every 8 months). 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.

Spread Test Calculator ships an update every 8 months, Count Keeper fortnightly. The most recent releases landed on October 2, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Spread Test Calculator | Count Keeper |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 8 months | **Fortnightly** |
| Size | 25 MB | 3 MB |
| Requires iOS | **11.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Brian Dockerty](https://appshunter.io/developer/1370231043) | [Mayuran Thanarajah](https://appshunter.io/developer/586190572) |

## What reviewers say

### Spread Test Calculator

[App page](https://appshunter.io/ios/app/spread-test-calculator/id6744341834)

**Features:** macOS Compatibility

**In-app purchases:** none


### Count Keeper

[App page](https://appshunter.io/ios/app/count-keeper/id6747337939)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Spread Test Calculator free?

Spread Test Calculator is free to download, with no in-app purchases.

### Is Count Keeper free?

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

### Do Spread Test Calculator or Count Keeper have ads?

Count Keeper shows ads; Spread Test Calculator does not.

### Which is updated more often, Spread Test Calculator or Count Keeper?

Spread Test Calculator ships an update every 8 months, and Count Keeper fortnightly. Most recently, Spread Test Calculator was updated on October 2, 2026 and Count Keeper 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.*