# ZenLevel vs FlatPad

The clearest difference is in-app purchases: ZenLevel at none against FlatPad's 1. FlatPad's advantage is update cadence (every 3 weeks vs every 5 months). On price, ads, device support and iOS requirement there is nothing between them.

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

ZenLevel ships an update every 5 months, FlatPad every 3 weeks. The most recent releases landed on October 3, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | ZenLevel | FlatPad |
| --- | --- | --- |
| 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 | No |
| Update frequency | Every 5 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 4 MB | 4 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone | **iPhone, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [YANMIN WANG](https://appshunter.io/developer/1867998387) | [Steve Smith](https://appshunter.io/developer/871200986) |

## 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


### FlatPad

[App page](https://appshunter.io/ios/app/flatpad-rv-leveling/id6789788400)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FlatPad Pro | $9.99 | one-time |


## Frequently asked questions

### Is ZenLevel free?

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

### Is FlatPad free?

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

### Do ZenLevel or FlatPad have ads?

Neither ZenLevel nor FlatPad shows ads.

### Which is updated more often, ZenLevel or FlatPad?

ZenLevel ships an update every 5 months, and FlatPad every 3 weeks. Most recently, ZenLevel was updated on October 3, 2026 and FlatPad 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.*