# Rules Measure vs TrueKit

The clearest difference is in-app purchases: Rules Measure at none against TrueKit's 2. TrueKit's advantage is iOS requirement (16.0 vs 26.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. TrueKit sells 2 in-app purchases, starting at $2.99 per year. Rules Measure asks for nothing beyond the download.

Rules Measure ships an update every 9 days, TrueKit every 10 days. The most recent releases landed on October 16, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Rules Measure | TrueKit |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 10 days |
| Size | 12 MB | 2 MB |
| Requires iOS | 26.0 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Davis McDowell](https://appshunter.io/developer/1888685588) | [光 韩](https://appshunter.io/developer/6772845629) |

## What reviewers say

### Rules Measure

[App page](https://appshunter.io/ios/app/rules-measure/id6761289085)

**In-app purchases:** none


### TrueKit

[App page](https://appshunter.io/ios/app/truekit/id6774952615)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TrueKit Yearly | $2.99 | per year |
| Unlock All Tools | $6.99 | one-time |


## Frequently asked questions

### Is Rules Measure free?

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

### Is TrueKit free?

TrueKit is free to download, with in-app purchases available.

### Do Rules Measure or TrueKit have ads?

Neither Rules Measure nor TrueKit shows ads.

### Which is updated more often, Rules Measure or TrueKit?

Rules Measure ships an update every 9 days, and TrueKit every 10 days. Most recently, Rules Measure was updated on October 16, 2026 and TrueKit on October 7, 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.*