Goniometer vs AI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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
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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。
AI
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As a high-tech device integrating sports recording and sleep recording, AI-RING's product design and market positioning reflect a precise grasp of user needs and a balance of compliance awareness. This product is not a professional medical device. The measurement data and results are for reference only and cannot be used as the basis for clinical diagnosis and treatment. Before using this application and making any medical decisions, please consult a doctor's advice.
Screenshots
Verdict
Goniometer and AI are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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. Neither carries in-app purchases, so what you see is what you pay.
Goniometer ships an update monthly, AI every 3 weeks. The most recent releases landed on July 8, 2026 and September 9, 2026 respectively.
| Parameter | Goniometer | AI |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (2 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Monthly | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 12.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 29 MB | 121 MB |
| Age rating | 4+ | 4+ |
| Developer | Guilin GemRed Sensor Technology Co., Ltd. | 深圳市琪远电子有限公司 |
In-app purchases
Goniometer
No in-app purchases
AI
No in-app purchases
