# 70 Degree vs Bubble Level

The clearest difference is rating: Bubble Level at 4.5 against 70 Degree's 2.9. Bubble Level also leads on update cadence (weekly vs every 6 months) and ratings volume (702 vs 10). 70 Degree's advantage is in-app purchases (none vs 11) and iOS requirement (12.0 vs 16.6). On price, ads and device support there is nothing between them.

Both are free to download. Bubble Level sells 11 in-app purchases, starting at $1.99 per 7 days. 70 Degree asks for nothing beyond the download.

Bubble Level holds the better App Store score, 4.5 against 2.9. That said, the two scores are not equally well evidenced: Bubble Level has 702 ratings behind it against 10, so its average is the more settled of the two. Written reviews point the same way: 20% of 70 Degree's written reviews are positive against 41% of Bubble Level's.

70 Degree ships an update every 6 months, Bubble Level weekly. The most recent releases landed on September 19, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | 70 Degree | Bubble Level |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.9 (10 ratings)](https://appshunter.io/ios/app/70-degree-smart-protractor/id1439735699/reviews) | **[4.5 (702 ratings)](https://appshunter.io/ios/app/bubble-level-ar-angle-finder/id1594066382/reviews)** |
| Number of ratings | 10 | **702** |
| Positive reviews | 20.0% of reviews | **41.4% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 6 months | **Weekly** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 19 MB | 43 MB |
| Requires iOS | **12.0** | 16.6 |
| Devices | iPhone, iPod | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [sekleung chang](https://appshunter.io/developer/867512958) | [Jens Rieckhof](https://appshunter.io/developer/354266124) |

## What reviewers say

### 70 Degree

[App page](https://appshunter.io/ios/app/70-degree-smart-protractor/id1439735699)

This utility app helps you measure angles with your iPhone. It provides notifications when a target angle is reached, with options for visual and auditory alerts.

**Highlights:** Angle degree measurement, Customizable angle alerts, Visual strobe notifications, Auditory alerts, Vibration alerts

**Features:** Vision Pro support

**In-app purchases:** none


### Bubble Level

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

This app transforms your phone into a precise leveling tool. It offers accurate angle measurement, inclination detection, and augmented reality features for DIY and professional use. Calibration is simple and quick.

**Highlights:** Ultra-precise angle measurement, Inclination and slope meter, Augmented reality ruler and protractor, Effortless one-touch calibration, Clear and easy-to-read display, User-friendly interface

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

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium - Weekly Plan | $1.99 | per 7 days |
| 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


## Frequently asked questions

### Is 70 Degree free?

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

### Is Bubble Level free?

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

### Which has better reviews, 70 Degree or Bubble Level?

Bubble Level is rated higher. 70 Degree averages 2.9 out of 5 from 10 ratings, while Bubble Level averages 4.5 from 702 ratings.

### Do 70 Degree or Bubble Level have ads?

Both 70 Degree and Bubble Level show ads.

### Which is updated more often, 70 Degree or Bubble Level?

70 Degree ships an update every 6 months, and Bubble Level weekly. Most recently, 70 Degree was updated on September 19, 2026 and Bubble Level on September 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.*