# Trueline vs Bubble Level

The clearest difference is update cadence: Trueline at daily against Bubble Level's every 9 days. Bubble Level's advantage is iOS requirement (15.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Trueline sells 1 one-off in-app purchase and Bubble Level sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Trueline ships an update daily, Bubble Level every 9 days. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Trueline | Bubble Level |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Daily** | Every 9 days |
| Size | 12 MB | 28 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Edge Analytics s.r.o.](https://appshunter.io/developer/1867465595) | [DIREKTA s.r.o.](https://appshunter.io/developer/6810129042) |

## What reviewers say

### Trueline

[App page](https://appshunter.io/ios/app/trueline-level-tool/id6800032249)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Trueline Pro | $6.99 | one-time |


### Bubble Level

[App page](https://appshunter.io/ios/app/bubble-level-angle-and-tilt/id6812738407)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ads | $2.99 | one-time |


## Frequently asked questions

### Is Trueline free?

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

### Is Bubble Level free?

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

### Do Trueline or Bubble Level have ads?

Both Trueline and Bubble Level show ads.

### Which is updated more often, Trueline or Bubble Level?

Trueline ships an update daily, and Bubble Level every 9 days. Most recently, Trueline was updated on October 24, 2026 and Bubble Level 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.*