# ZenLevel vs Precise Bubble Level

The clearest difference is in-app purchases: ZenLevel at none against Precise Bubble Level's 3. ZenLevel also leads on ads (none vs shown). Precise Bubble Level's advantage is update cadence (every 11 days vs every 5 months) and device support (3 vs 1). On price there is nothing between them.

Both are free to download. Precise Bubble Level sells 3 in-app purchases, starting at $0.99 per 7 days. ZenLevel asks for nothing beyond the download.

ZenLevel ships an update every 5 months, Precise Bubble Level every 11 days. The most recent releases landed on October 3, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | ZenLevel | Precise Bubble Level |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/zenlevel/id6762086055/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 5 months | **Every 11 days** |
| Monetization | Free | — |
| Size | 4 MB | 49 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [YANMIN WANG](https://appshunter.io/developer/1867998387) | [Turan Hurkan Ergunsu](https://appshunter.io/developer/1842106410) |

## What reviewers say

### ZenLevel

[App page](https://appshunter.io/ios/app/zenlevel/id6762086055)

Transform your device into a precision inclinometer with a calm, deliberate feel. Offers multiple measurement modes for surface, plumb, and calibration, with a history log for saved readings. Designed with a focus on privacy and a realistic tool aesthetic.

**Highlights:** Surface measurement mode, Plumb measurement mode, Calibration and zeroing, Measurement history log, Landscape precision mode, Haptic feedback, Privacy-focused design

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

**In-app purchases:** none


### Precise Bubble Level

[App page](https://appshunter.io/ios/app/precise-bubble-level/id6762563537)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | per 7 days |
| Remove Ads | $2.99 | per month |
| Remove Ads | $17.99 | per year |


## Frequently asked questions

### Is ZenLevel free?

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

### Is Precise Bubble Level free?

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

### Do ZenLevel or Precise Bubble Level have ads?

Precise Bubble Level shows ads; ZenLevel does not.

### Which is updated more often, ZenLevel or Precise Bubble Level?

ZenLevel ships an update every 5 months, and Precise Bubble Level every 11 days. Most recently, ZenLevel was updated on October 3, 2026 and Precise Bubble Level on September 21, 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.*