# TonalToolbox vs TrueLevel

The clearest difference is in-app purchases: TonalToolbox at none against TrueLevel's 1. TonalToolbox also leads on update cadence (every 4 days vs monthly) and iOS requirement (12.0 vs 17.6). TrueLevel's advantage is ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. TrueLevel sells 1 one-off in-app purchase. TonalToolbox asks for nothing beyond the download.

TonalToolbox ships an update every 4 days, TrueLevel monthly. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | TonalToolbox | TrueLevel |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 4 days** | Monthly |
| Size | 35 MB | 3 MB |
| Requires iOS | **12.0** | 17.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [梦阳 许](https://appshunter.io/developer/1783294344) | [Daniil Mukashev](https://appshunter.io/developer/1833839105) |

## What reviewers say

### TonalToolbox

[App page](https://appshunter.io/ios/app/tonaltoolbox/id6742310956)

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

**In-app purchases:** none


### TrueLevel

[App page](https://appshunter.io/ios/app/truelevel-bubble-level-tool/id6760949015)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TrueLevel Pro | $3.99 | one-time |


## Frequently asked questions

### Is TonalToolbox free?

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

### Is TrueLevel free?

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

### Do TonalToolbox or TrueLevel have ads?

TonalToolbox shows ads; TrueLevel does not.

### Which is updated more often, TonalToolbox or TrueLevel?

TonalToolbox ships an update every 4 days, and TrueLevel monthly. Most recently, TonalToolbox was updated on October 28, 2026 and TrueLevel on October 25, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*