# MJ Trainer vs Angle Meter

The clearest difference is in-app purchases: MJ Trainer at none against Angle Meter's 1. MJ Trainer also leads on ads (none vs shown) and iOS requirement (11.0 vs 15.0). On price, update cadence and device support there is nothing between them.

Both are free to download. Angle Meter sells 1 one-off in-app purchase. MJ Trainer asks for nothing beyond the download.

MJ Trainer ships an update every 2 months, Angle Meter every 3 weeks. The most recent releases landed on October 27, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | MJ Trainer | Angle Meter |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Size | 13 MB | 40 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [东莞市满佳电子科技有限公司](https://appshunter.io/developer/1287542125) | [hiroki kawamura](https://appshunter.io/developer/1613885005) |

## What reviewers say

### MJ Trainer

[App page](https://appshunter.io/ios/app/mj-trainer/id6463097802)

**Features:** macOS Compatibility

**In-app purchases:** none


### Angle Meter

[App page](https://appshunter.io/ios/app/angle-meter-slope-and-tilt/id6787397683)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Premium (Angle Meter) | $17.99 | one-time |


## Frequently asked questions

### Is MJ Trainer free?

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

### Is Angle Meter free?

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

### Do MJ Trainer or Angle Meter have ads?

Angle Meter shows ads; MJ Trainer does not.

### Which is updated more often, MJ Trainer or Angle Meter?

MJ Trainer ships an update every 2 months, and Angle Meter every 3 weeks. Most recently, MJ Trainer was updated on October 27, 2026 and Angle Meter on October 31, 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.*