# Bubble Level vs Trueline

The clearest difference is ads: Bubble Level at none against Trueline's shown. Trueline's advantage is update cadence (daily vs every 3 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Bubble Level sells 3 in-app purchases, starting at $4.99 per 7 days and Trueline sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Bubble Level ships an update every 3 weeks, Trueline daily. The most recent releases landed on November 3, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Bubble Level | Trueline |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Daily** |
| Size | 5 MB | 12 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Phuc Pham](https://appshunter.io/developer/1893081423) | [Edge Analytics s.r.o.](https://appshunter.io/developer/1867465595) |

## What reviewers say

### Bubble Level

[App page](https://appshunter.io/ios/app/bubble-level-spirit-level/id6772263236)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Surface Check — Weekly | $4.99 | per 7 days |
| Shelf Alignment — Yearly | $24.99 | per year |
| Slope Gauge — Pay Once | $49.99 | one-time |


### 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 |


## Frequently asked questions

### Is Bubble Level free?

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

### Is Trueline free?

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

### Do Bubble Level or Trueline have ads?

Trueline shows ads; Bubble Level does not.

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

Bubble Level ships an update every 3 weeks, and Trueline daily. Most recently, Bubble Level was updated on November 3, 2026 and Trueline on October 24, 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.*