# Bubble Level vs Viermie

The clearest difference is in-app purchases: Viermie at none against Bubble Level's 3. Viermie also leads on ads (none vs shown). Bubble Level's advantage is iOS requirement (15.0 vs 17.6). On price, update cadence and device support there is nothing between them.

Both are free to download. Bubble Level sells 3 in-app purchases, starting at $1.99 per 7 days. Viermie asks for nothing beyond the download.

Bubble Level ships an update every 2 weeks, Viermie monthly. Both last shipped on October 24, 2026.

## The numbers

| Metric | Bubble Level | Viermie |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (60 ratings)](https://appshunter.io/ios/app/bubble-level-spirit-tool/id6470280224/reviews)** | — |
| Number of ratings | **60** | — |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 2 weeks** | Monthly |
| Monetization | Free with in-app purchases | — |
| Size | 16 MB | 40 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Andy Sutanto](https://appshunter.io/developer/1659282966) | [Enoro AS](https://appshunter.io/developer/779631538) |

## What reviewers say

### Bubble Level

[App page](https://appshunter.io/ios/app/bubble-level-spirit-tool/id6470280224)

This tool helps you ensure surfaces are perfectly horizontal or vertical using various measurement modes. It offers features like angle locking, calibration for accuracy, and an audible indicator for precise leveling.

**Highlights:** Multiple leveling modes (Circle, Vertical, Horizontal, Mix), Lock current angle feature, Calibration for accurate readings, Audible indicator for perfect leveling, User-friendly interface, Angle locking

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Bubble Level Pro | $1.99 | per 7 days |
| Spirit Level Pro | $19.99 | per year |
| Waterpas Pro - Waterpass | $39.99 | one-time |


### Viermie

[App page](https://appshunter.io/ios/app/viermie/id6755475252)

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

**In-app purchases:** none


## Frequently asked questions

### Is Bubble Level free?

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

### Is Viermie free?

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

### Do Bubble Level or Viermie have ads?

Bubble Level shows ads; Viermie does not.

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

Bubble Level ships an update every 2 weeks, and Viermie monthly. Most recently, Bubble Level was updated on October 24, 2026 and Viermie 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.*