# Smart Evaluation vs Bubble Level

The clearest difference is rating: Bubble Level at 4.5 against Smart Evaluation's 2.9. Bubble Level also leads on ratings volume (702 vs 14) and update cadence (weekly vs every 3 weeks). Smart Evaluation's advantage is in-app purchases (none vs 11) and ads (none vs shown). On price 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. Smart Evaluation 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 14, so its average is the more settled of the two. Written reviews point the same way: 33% of Smart Evaluation's written reviews are positive against 41% of Bubble Level's.

Smart Evaluation ships an update every 3 weeks, Bubble Level weekly. The most recent releases landed on September 29, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Smart Evaluation | Bubble Level |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.9 (14 ratings)](https://appshunter.io/ios/app/smart-evaluation/id1400853113/reviews) | **[4.5 (702 ratings)](https://appshunter.io/ios/app/bubble-level-ar-angle-finder/id1594066382/reviews)** |
| Number of ratings | 14 | **702** |
| Positive reviews | 33.3% of reviews | **41.4% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 233 MB | 43 MB |
| Requires iOS | **9.0** | 16.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Max Mobility, LLC](https://appshunter.io/developer/1121427801) | [Jens Rieckhof](https://appshunter.io/developer/354266124) |

## What reviewers say

### Smart Evaluation

[App page](https://appshunter.io/ios/app/smart-evaluation/id1400853113)

This app allows users to update firmware for SmartDrives and PushTrackers. It offers training materials, demo unit management for dealers, and detailed evaluation tools for clinicians, including objective data collection and report generation.

**Highlights:** Over-the-air firmware updates, Training and educational videos, Demo unit management, User-focused evaluations, Objective data collection, PushTracker settings control

**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 Smart Evaluation free?

Smart Evaluation 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, Smart Evaluation or Bubble Level?

Bubble Level is rated higher. Smart Evaluation averages 2.9 out of 5 from 14 ratings, while Bubble Level averages 4.5 from 702 ratings.

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

Bubble Level shows ads; Smart Evaluation does not.

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

Smart Evaluation ships an update every 3 weeks, and Bubble Level weekly. Most recently, Smart Evaluation was updated on September 29, 2026 and Bubble Level on October 7, 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.*