# Mila's Unit Converter PRO vs Bubble Level

The clearest difference is review sentiment: Mila's Unit Converter PRO at 90% against Bubble Level's 43%. Mila's Unit Converter PRO also leads on in-app purchases (none vs 11) and ads (none vs shown). Bubble Level's advantage is price (Free vs $9.99). On ratings volume, device support and iOS requirement there is nothing between them.

Bubble Level is free to download; Mila's Unit Converter PRO costs $9.99 up front. Bubble Level sells 11 in-app purchases, starting at $1.99 per 7 days. Mila's Unit Converter PRO asks for nothing beyond the download.

Mila's Unit Converter PRO holds the better App Store score, 4.8 against 4.5. Both are backed by a comparable volume of ratings — 1K and 720 respectively. Written reviews point the same way: 90% of Mila's Unit Converter PRO's written reviews are positive against 43% of Bubble Level's.

Mila's Unit Converter PRO ships an update every 4 days, Bubble Level weekly. The most recent releases landed on October 29, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Mila's Unit Converter PRO | Bubble Level |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | **[4.8 (1K ratings)](https://appshunter.io/ios/app/milas-unit-converter-pro/id407157906/reviews)** | [4.5 (720 ratings)](https://appshunter.io/ios/app/bubble-level-angle-finder-ar/id1594066382/reviews) |
| Number of ratings | **1K** | 720 |
| Positive reviews | **89.9% of reviews** | 43.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 4 days** | Weekly |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 5 MB | 44 MB |
| Requires iOS | 17.6 | **16.6** |
| Devices | iPhone, iPad | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Scott DeSapio](https://appshunter.io/developer/403110618) | [Jens Rieckhof](https://appshunter.io/developer/354266124) |

## What reviewers say

### Mila's Unit Converter PRO

[App page](https://appshunter.io/ios/app/milas-unit-converter-pro/id407157906)

Effortlessly convert between hundreds of units across 26 essential categories with this precision calculator. Designed for speed and simplicity, it offers accurate results in seconds for students, professionals, and travelers alike. Enjoy offline functionality and a customizable experience.

**Highlights:** Hundreds of units across 26 categories, Metric, imperial, and specialized units, Smart conversions for temperature, fuel, and more, Customizable categories, units, and number formats, Intuitive search and offline functionality, Conversions happen as you type

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Bubble Level

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

This app transforms your device into a precise leveling tool, offering augmented reality measurement capabilities. It's designed for both DIY enthusiasts and professionals, ensuring accurate angle and inclination measurements with a user-friendly interface. Apple Watch integration provides live readings on your wrist.

**Highlights:** Augmented reality ruler and protractor, Ultra-precise angle measurements, Effortless one-touch calibration, Clear and easy-to-read display, Apple Watch integration for live readings, Measures inclination and slope

**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 Mila's Unit Converter PRO free?

Mila's Unit Converter PRO costs $9.99, with no in-app purchases.

### Is Bubble Level free?

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

### Which has better reviews, Mila's Unit Converter PRO or Bubble Level?

Mila's Unit Converter PRO is rated higher. Mila's Unit Converter PRO averages 4.8 out of 5 from 1K ratings, while Bubble Level averages 4.5 from 720 ratings.

### Do Mila's Unit Converter PRO or Bubble Level have ads?

Bubble Level shows ads; Mila's Unit Converter PRO does not.

### Which is updated more often, Mila's Unit Converter PRO or Bubble Level?

Mila's Unit Converter PRO ships an update every 4 days, and Bubble Level weekly. Most recently, Mila's Unit Converter PRO was updated on October 29, 2026 and Bubble Level on October 30, 2026.

---

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