# NATTT vs LevelMaster

The clearest difference is update cadence: LevelMaster at every 2 weeks against NATTT's every 3 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.

NATTT ships an update every 3 months, LevelMaster every 2 weeks. The most recent releases landed on October 10, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | NATTT | LevelMaster |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Size | 20 MB | 24 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | **iPhone, iPod, Mac** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ShipBit UG (haftungsbeschrankt)](https://appshunter.io/developer/1607896313) | [Yuki Okawa](https://appshunter.io/developer/1867195492) |

## What reviewers say

### NATTT

[App page](https://appshunter.io/ios/app/nattt/id1607896311)

**In-app purchases:** none


### LevelMaster

[App page](https://appshunter.io/ios/app/levelmaster-bubble-level/id6786262885)

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

**In-app purchases:** none


## Frequently asked questions

### Is NATTT free?

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

### Is LevelMaster free?

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

### Do NATTT or LevelMaster have ads?

Neither NATTT nor LevelMaster shows ads.

### Which is updated more often, NATTT or LevelMaster?

NATTT ships an update every 3 months, and LevelMaster every 2 weeks. Most recently, NATTT was updated on October 10, 2026 and LevelMaster on October 6, 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.*