# Smart Level vs Clinometer Bubble Level

The clearest difference is in-app purchases: Clinometer Bubble Level at none against Smart Level's 1. Clinometer Bubble Level also leads on rating (3.9 vs 3.5) and ratings volume (58 vs 2). Smart Level's advantage is update cadence (every 12 months vs every 49 months) and iOS requirement (7.0 vs 9.0). On price, ads, monetization model and device support there is nothing between them.

Both are free to download. Smart Level sells 1 one-off in-app purchase. Clinometer Bubble Level asks for nothing beyond the download.

Clinometer Bubble Level holds the better App Store score, 3.9 against 3.5. That said, the two scores are not equally well evidenced: Clinometer Bubble Level has 58 ratings behind it against 2, so its average is the more settled of the two.

Smart Level ships an update every 12 months, Clinometer Bubble Level every 49 months. The most recent releases landed on June 10, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | Smart Level | Clinometer Bubble Level |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (2 ratings)](https://appshunter.io/ios/app/smart-level/id1115083676/reviews) | **[3.9 (58 ratings)](https://appshunter.io/ios/app/clinometer-bubble-level/id1151262593/reviews)** |
| Number of ratings | 2 | **58** |
| Positive reviews | — | 40.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 12 months** | Every 49 months |
| Monetization | Free | Free |
| Size | 23 MB | 24 MB |
| Requires iOS | **7.0** | 9.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [NETIGEN KLUZOWICZ SPOLKA JAWNA](https://appshunter.io/developer/892331873) | [齐 陈](https://appshunter.io/developer/455625305) |

## What reviewers say

### Smart Level

[App page](https://appshunter.io/ios/app/smart-level/id1115083676)

This utility app transforms your smartphone into a precise spirit level. It measures horizontal and vertical surfaces, displaying the angle of inclination. Ideal for home repairs and professional use, it offers ease of use and accurate readings.

**Highlights:** Smartphone spirit level, Measures horizontal and vertical surfaces, Displays angle of inclination, Bull's eye level for 2D measurement, Precise and easy to use

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AdFree | $0.99 | one-time |


### Clinometer Bubble Level

[App page](https://appshunter.io/ios/app/clinometer-bubble-level/id1151262593)

Measure angles and surface flatness with this easy-to-use tool. Ideal for home decoration, aligning pictures, and calculating slopes or pitches. Features calibration and a hold option for convenience.

**Highlights:** Angle measurement, Surface flatness measurement, Calibration, Hold option, Auto fade unused level, Number indicators for angles

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Smart Level free?

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

### Is Clinometer Bubble Level free?

Clinometer Bubble Level is free to download, with no in-app purchases.

### Which has better reviews, Smart Level or Clinometer Bubble Level?

Clinometer Bubble Level is rated higher. Smart Level averages 3.5 out of 5 from 2 ratings, while Clinometer Bubble Level averages 3.9 from 58 ratings.

### Do Smart Level or Clinometer Bubble Level have ads?

Neither Smart Level nor Clinometer Bubble Level shows ads.

### Which is updated more often, Smart Level or Clinometer Bubble Level?

Smart Level ships an update every 12 months, and Clinometer Bubble Level every 49 months. Most recently, Smart Level was updated on June 10, 2026 and Clinometer Bubble Level on September 14, 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.*