# Protractor, Level vs TrueDetect Device Test

The clearest difference is in-app purchases: TrueDetect Device Test at none against Protractor, Level's 1. TrueDetect Device Test also leads on update cadence (weekly vs fortnightly) and iOS requirement (15.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Protractor, Level sells 1 one-off in-app purchase. TrueDetect Device Test asks for nothing beyond the download.

Protractor, Level ships an update fortnightly, TrueDetect Device Test weekly. The most recent releases landed on September 30, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Protractor, Level | TrueDetect Device Test |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Fortnightly | **Weekly** |
| Size | 2 MB | 3 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Streamlined Studios](https://appshunter.io/developer/1802378603) | [AMIR AKBAR](https://appshunter.io/developer/6790856040) |

## What reviewers say

### Protractor, Level

[App page](https://appshunter.io/ios/app/protractor-level-notch/id6795315730)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Notch Pro | $2.99 | one-time |


### TrueDetect Device Test

[App page](https://appshunter.io/ios/app/truedetect-device-test/id6799417064)

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

**In-app purchases:** none


## Frequently asked questions

### Is Protractor, Level free?

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

### Is TrueDetect Device Test free?

TrueDetect Device Test is free to download, with no in-app purchases.

### Do Protractor, Level or TrueDetect Device Test have ads?

Neither Protractor, Level nor TrueDetect Device Test shows ads.

### Which is updated more often, Protractor, Level or TrueDetect Device Test?

Protractor, Level ships an update fortnightly, and TrueDetect Device Test weekly. Most recently, Protractor, Level was updated on September 30, 2026 and TrueDetect Device Test on September 19, 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.*