Bubble Level + Compass Pro vs Anker Power
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Bubble Level + Compass Pro
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.
- 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
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Bubble Level + Compass Pro combines a precise spirit level, compass, and Apple Watch companion app, so when your phone is placed somewhere hard to see its screen, you can still get live readings from your wrist. No more out-of-reach setups, and no more crouching. Features: • Bullseye level plus horizontal and vertical levels with 0.1 degree precision • Bubble level units: Angle (degrees) or Incline/Slope (%) • True and magnetic heading with direction text • Magnetic declination • Apple Watch companion app • Gyro or accelerometer sensor mode • Gyro calibration offset to compensate for camera bulge or uneven phone cases • Pitch/Roll/Yaw rotation rate readouts • Compass calibration status • Red-light night mode The tool is normally included in my astronomical app (Polar Scope Align Pro), but I decided to release it as a separate app because I could not find anything with the features I wanted on the app store. (A free ad-supported version is also available)
Anker Power
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.
- Remote device control
- Real-time status monitoring
- Over-the-air updates
- Adjust output power
- Turn devices on/off
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Use the Anker Power app to connect, control, view, and update your supported Anker power banks, outdoor energy storage devices, photovoltaics, and other devices for a smarter experience.. -Control your devices anytime and anywhere Easily adjust the output power of each device and control the device remotely. -View the status of a device at a glance Check the status of each device and turn the device on or off accordingly. -Easily and quickly update your devices Obtain over-the-air (OTA) firmware and software updates for Anker products. Supported devices: 767 PowerHouse MI60 Microinverter Powered Cooler 30 Powered Cooler 40 Powered Cooler 50 SOLIX F1200 MI80 Microinverter(BLE) Prime Power Bank SOLIX E1600 Solarbank SOLIX F2600 SOLIX F1500 SOLIX C1000 SOLIX C800 SOLIX C800 Plus SOLIX F3800 0W Output Switch SOLIX C800X Home Power Panel Double Power Hub Solarbank 2 E1600 Pro SOLIX P1 Meter Smart Meter SOLIX F2000 Solarbank 2 E1600 Plus SOLIX C300 SOLIX C300 DC SOLIX C300X Smart Plug 160W Prime Charger 250W Prime Charger 240W Charging Station SOLIX C300X DC SOLIX C200(X) SOLIX C200 DC SOLIX C200X DC Solarbank 2 E1600 AC SOLIX Everfrost 2 40L Electric Cooler SOLIX Everfrost 2 58L Electric Cooler SOLIX F3800 Plus SOLIX Everfrost 2 23 Solarbank 3 E2700 Pro SOLIX F3000 SOLIX V1 Smart EV Charger 26K Prime Power Bank 20K Prime Power Bank 150W Charging Base SOLIX Alternator Charger Anker SOLIX E10 Power Dock Smart Generator 5500
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Bubble Level + Compass Pro | Anker Power |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 5.0 (22 ratings) — better | 4.5 (1.4K ratings) |
| Positive reviews | 100.0% of reviews — better | 69.6% of reviews |
| Number of ratings | 22 | 1.4K — better |
| Update frequency | Every 17 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone, iPod |
| Requires iOS | 12.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 7 MB | 723 MB |
| Age rating | 4+ | 4+ |
| Developer | Dimitrios Kechagias | Power Mobile Life LLC |
Customer experience
Bubble Level + Compass Pro
Anker Power
Bugs and requests
Bubble Level + Compass Pro
Not enough reviews yet to summarise bugs or requests.
Anker Power
Reported bugs
3 issues- Frequent app crashes
- Firmware update issues
- Bluetooth disconnection problems
Requested features
4 requests- Battery health monitoring
- Customizable charge limits
- Time-of-use scheduling
- Improved app performance
In-app purchases
Bubble Level + Compass Pro
No in-app purchases
Anker Power
No in-app purchases
Questions
Is Bubble Level + Compass Pro free?
Is Anker Power free?
Which has better reviews, Bubble Level + Compass Pro or Anker Power?
Do Bubble Level + Compass Pro or Anker Power have ads?
Which is updated more often, Bubble Level + Compass Pro or Anker Power?
Other comparisons
