# Bubble Level vs Digital Protractor & Level

The clearest difference is ads: Digital Protractor & Level at none against Bubble Level's shown. Bubble Level's advantage is device support (3 vs 1). On price, update cadence, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Bubble Level sells 10 in-app purchases, starting at $2.99 per month and Digital Protractor & Level sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Bubble Level ships an update weekly, Digital Protractor & Level every 9 days. The most recent releases landed on November 7, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Bubble Level | Digital Protractor & Level |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (721 ratings)](https://appshunter.io/ios/app/bubble-level-angle-finder-ar/id1594066382/reviews)** | — |
| Number of ratings | **721** | — |
| Positive reviews | 43.3% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Every 9 days |
| Monetization | Free with in-app purchases | — |
| Size | 43 MB | 3 MB |
| Requires iOS | **16.6** | 17.0 |
| Devices | **iPhone, iPad, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Jens Rieckhof](https://appshunter.io/developer/354266124) | [Robert Carpenter](https://appshunter.io/developer/6792301217) |

## What reviewers say

### Bubble Level

[App page](https://appshunter.io/ios/app/bubble-level-angle-finder-ar/id1594066382)

This utility app transforms your device into a precise bubble level and angle finder. It offers augmented reality measurement tools, a user-friendly interface, and Apple Watch integration for live readings. Ideal for DIY enthusiasts and professionals needing accurate surface leveling and inclination measurements.

**Highlights:** Augmented reality ruler and protractor, Precise angle measurements to one tenth of a degree, Effortless one-touch calibration, Clear and easy-to-read visual display, Apple Watch integration for live angle readings, Measures inclination and slope

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Spirit Level Premium – Monthly | $2.99 | per month |
| Bubble Level Premium - Weekly | $2.99 | per 7 days |
| Bubble Level Premium - Monthly | $5.99 | per month |
| Spirit Level Premium – Annual | $14.99 | per year |
| Bubble Level Premium - Annual | $19.99 | per year |
| All features - No ads | $1.99 | one-time |
| Unlock all AR features | $5.99 | one-time |
| Discount Lifetime Premium | $14.99 | one-time |
| Bubble Level PREMIUM Lifetime | $19.99 | one-time |
| Bubble Level - Lifetime Premium | $29.99 | one-time |

**What reviewers like**

- 👍 Simple and easy to use
- 🔍 Accurate angle measurements
- 🛠️ Helpful for various tasks (telescopes, leveling, etc.)

**What reviewers complain about**

- 🤑 Expensive ad removal
- 🤖 Unreliable calibration
- 💤 Constant interruptions and ads
- 🚫 Unusable due to ads

**Reported bugs**

- App crashes on launch
- Measurement point behaves erratically

**Requested features**

- Ability to calibrate the app
- Option to change the display color


### Digital Protractor & Level

[App page](https://appshunter.io/ios/app/digital-protractor-and-level/id6795648874)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Version | $1.99 | one-time |


## Frequently asked questions

### Is Bubble Level free?

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

### Is Digital Protractor & Level free?

Digital Protractor & Level is free to download, with in-app purchases available.

### Do Bubble Level or Digital Protractor & Level have ads?

Bubble Level shows ads; Digital Protractor & Level does not.

### Which is updated more often, Bubble Level or Digital Protractor & Level?

Bubble Level ships an update weekly, and Digital Protractor & Level every 9 days. Most recently, Bubble Level was updated on November 7, 2026 and Digital Protractor & Level on November 6, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*