# Bubbles vs Spirit Level smart

The clearest difference is update cadence: Spirit Level smart at every 2 months against Bubbles's every 7 months. Spirit Level smart also leads on iOS requirement (15.6 vs 17.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Bubbles sells 4 in-app purchases, starting at $1.99 per month and Spirit Level smart sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Bubbles ships an update every 7 months, Spirit Level smart every 2 months. The most recent releases landed on October 24, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Bubbles | Spirit Level smart |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 2 months** |
| Size | 35 MB | 24 MB |
| Requires iOS | 17.6 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Polydez](https://appshunter.io/developer/1683312256) | [akira ohmachi](https://appshunter.io/developer/1338624340) |

## What reviewers say

### Bubbles

[App page](https://appshunter.io/ios/app/bubbles-level-tool/id6450005605)

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Bubbles Pro (Monthly Plan) | $1.99 | per month |
| LevelTool Pro - Weekly Plan | $5.99 | per 7 days |
| Bubbles Pro (Yearly Plan) | $9.99 | per year |
| Bubbles Pro | $7.99 | one-time |


### Spirit Level smart

[App page](https://appshunter.io/ios/app/spirit-level-smart/id6473119678)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


## Frequently asked questions

### Is Bubbles free?

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

### Is Spirit Level smart free?

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

### Do Bubbles or Spirit Level smart have ads?

Neither Bubbles nor Spirit Level smart shows ads.

### Which is updated more often, Bubbles or Spirit Level smart?

Bubbles ships an update every 7 months, and Spirit Level smart every 2 months. Most recently, Bubbles was updated on October 24, 2026 and Spirit Level smart on October 20, 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.*