# Bubble Level + Compass Pro vs Anker Power

The clearest difference is price: Anker Power at Free against Bubble Level + Compass Pro's $0.99. Anker Power also leads on update cadence (fortnightly vs every 17 months) and ratings volume (1.4K vs 22). Bubble Level + Compass Pro's advantage is rating (5.0 vs 4.5) and review sentiment (100% vs 70%). On ads and in-app purchases there is nothing between them.

Anker Power is free to download; Bubble Level + Compass Pro costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Bubble Level + Compass Pro holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Anker Power has 1.4K ratings behind it against 22, so its average is the more settled of the two. Written reviews point the same way: 100% of Bubble Level + Compass Pro's written reviews are positive against 70% of Anker Power's.

Bubble Level + Compass Pro ships an update every 17 months, Anker Power fortnightly. The most recent releases landed on October 10, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Bubble Level + Compass Pro | Anker Power |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[5.0 (22 ratings)](https://appshunter.io/ios/app/bubble-level-plus-compass-pro/id988590222/reviews)** | [4.5 (1.4K ratings)](https://appshunter.io/ios/app/anker-power/id1635029057/reviews) |
| Number of ratings | 22 | **1.4K** |
| Positive reviews | **100.0% of reviews** | 69.6% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 17 months | **Fortnightly** |
| Monetization | Paid | **Free** |
| Size | 7 MB | 723 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Dimitrios Kechagias](https://appshunter.io/developer/970157964) | [Power Mobile Life LLC](https://appshunter.io/developer/1096079944) |

## What reviewers say

### Bubble Level + Compass Pro

[App page](https://appshunter.io/ios/app/bubble-level-plus-compass-pro/id988590222)

This utility app provides a precise spirit level and compass for your iPhone and Apple Watch. Get live readings on your wrist, even when your phone's screen is out of sight. Features include bullseye, horizontal, and vertical levels with 0.1-degree precision.

**Highlights:** Bullseye, horizontal, and vertical levels, 0.1-degree precision, True and magnetic heading, Apple Watch companion app, Gyro or accelerometer sensor mode, Red-light night mode

**Features:** Apple Watch app, Vision Pro support

**In-app purchases:** none


### Anker Power

[App page](https://appshunter.io/ios/app/anker-power/id1635029057)

Remotely manage and monitor your Anker power banks, outdoor energy storage, and solar devices. Control output, check status, and perform over-the-air updates for a smarter energy experience.

**Highlights:** Remote device control, Real-time status monitoring, Over-the-air updates, Adjust output power, Turn devices on/off

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 🚀 Powerful and reliable
- 💡 Useful app features
- 🔋 Good battery life

**What reviewers complain about**

- 🐛 Connectivity issues
- 🔒 Privacy concerns
- 💡 Lacking advanced features
- 🔋 Battery management limitations

**Reported bugs**

- Frequent app crashes
- Firmware update issues
- Bluetooth disconnection problems

**Requested features**

- Battery health monitoring
- Customizable charge limits
- Time-of-use scheduling
- Improved app performance


## Frequently asked questions

### Is Bubble Level + Compass Pro free?

Bubble Level + Compass Pro costs $0.99, with no in-app purchases.

### Is Anker Power free?

Anker Power is free to download, with no in-app purchases.

### Which has better reviews, Bubble Level + Compass Pro or Anker Power?

Bubble Level + Compass Pro is rated higher. Bubble Level + Compass Pro averages 5.0 out of 5 from 22 ratings, while Anker Power averages 4.5 from 1.4K ratings.

### Do Bubble Level + Compass Pro or Anker Power have ads?

Neither Bubble Level + Compass Pro nor Anker Power shows ads.

### Which is updated more often, Bubble Level + Compass Pro or Anker Power?

Bubble Level + Compass Pro ships an update every 17 months, and Anker Power fortnightly. Most recently, Bubble Level + Compass Pro was updated on October 10, 2026 and Anker Power on October 17, 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.*