Bubble Level + Spirit Level vs Goniometer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Bubble Level + Spirit Level
Transform your smartphone into a precise measuring tool. This application offers two modes for accurately leveling surfaces or measuring angles, with calibration made simple. It's ideal for tasks like hanging pictures, checking table levels, or calculating roof pitches.
- Bubble level and spirit level modes
- Accurate to one tenth of a degree
- Easy calibration
- Camera support
- Multiple color schemes
- Angle and slope measurement
Read full descriptionHide full description
Turn your phone into a bubble level! ◉ With 2 modes to measure angles or level surfaces. ◉ Accurate to one tenth of a degree. ◉ Super easy calibration and handling. ◉ Camera support. ◉ 5 different color schemes. How to calibrate: ◉ Align the phone with a level or vertical edge and hit the calibration button. ◉ That's it. This tool can be used for: ◉ Picture frame alignment ◉ Measuring angles and slopes ◉ Checking the surface level of tables, shelves or any other object ◉ Roof pitch calculation Download this app today! Terms of use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Goniometer
Easily record joint motion range using Bluetooth connection with a digital goniometer. Track personal rehabilitation training progress for joint movement. Remember to consult a doctor before making medical decisions.
- Bluetooth connectivity with digital goniometer
- Record joint range of motion
- Track personal rehabilitation status
- Monitor joint movement progress
- Easy data recording
Read full descriptionHide full description
The app use bluetooth connect with GR digital goniometer to record the angle range of joint motion easily. It can track record personal rehabilitation training status of joint motion. APP可通过蓝牙与GR数显角度尺连接并记录关节活动度的测量数据，帮助追踪个人康复训练情况。多一份准备，少一分担心，精准记录关节活动康复进度。 Disclaimer reminding：users to seek a doctor’s advice in addition to using this app and before making any medical decisions. 免责声明提醒：用户除了使用此应用程序外，在做出任何医疗决定之前，还应寻求医生的建议。
Screenshots
Verdict
The clearest difference is review sentiment: Bubble Level + Spirit Level at 100% against Goniometer's 0%. Bubble Level + Spirit Level also leads on rating (4.4 vs 1.0) and ratings volume (35 vs 2). Goniometer's advantage is in-app purchases (none vs 7) and ads (none vs shown). On price, update cadence and device support 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
Both are free to download. Bubble Level + Spirit Level sells 7 in-app purchases, starting at $0.99 per 7 days. Goniometer asks for nothing beyond the download.
Bubble Level + Spirit Level holds the better App Store score, 4.4 against 1.0. That said, the two scores are not equally well evidenced: Bubble Level + Spirit Level has 35 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 100% of Bubble Level + Spirit Level's written reviews are positive against 0% of Goniometer's.
Bubble Level + Spirit Level ships an update fortnightly, Goniometer monthly. The most recent releases landed on October 15, 2026 and October 13, 2026 respectively.
| Parameter | Bubble Level + Spirit Level | Goniometer |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (35 ratings) — better | 1.0 (2 ratings) |
| Positive reviews | 100.0% of reviews — better | 0.0% of reviews |
| Number of ratings | 35 — better | 2 |
| Update frequency | Fortnightly — better | Monthly |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 16.6 | 12.0 — better |
| Further details — not scored | ||
| Size | 38 MB | 29 MB |
| Age rating | 4+ | 4+ |
| Developer | Jens Rieckhof | GemRed |
Customer experience
Bubble Level + Spirit Level
Goniometer
In-app purchases
Bubble Level + Spirit Level
- Bubble Level - Weekly$0.997 Days
- Bubble Level - Weekly$1.997 Days
- Bubble Level - Annual7 Days trial$6.991 Year
Show 1 moreShow fewer
- Bubble Level - Annual$8.991 Year
- Bubble Level - Lifetime Discount$9.99
- Bubble Level - Lifetime Premium$12.99
- Bubble Level - Lifetime$19.99
Goniometer
No in-app purchases
Questions
Is Bubble Level + Spirit Level free?
Is Goniometer free?
Which has better reviews, Bubble Level + Spirit Level or Goniometer?
Do Bubble Level + Spirit Level or Goniometer have ads?
Which is updated more often, Bubble Level + Spirit Level or Goniometer?
Other comparisons
