# Goniometer vs AI

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.

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.

## The numbers

| Metric | Goniometer | AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (2 ratings)](https://appshunter.io/ios/app/goniometer/id6736895084/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 29 MB | 121 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Guilin GemRed Sensor Technology Co., Ltd.](https://appshunter.io/developer/1279222567) | [深圳市琪远电子有限公司](https://appshunter.io/developer/1813363632) |

## What reviewers say

### Goniometer

[App page](https://appshunter.io/ios/app/goniometer/id6736895084)

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.

**Highlights:** Bluetooth connectivity with digital goniometer, Record joint range of motion, Track personal rehabilitation status, Monitor joint movement progress, Easy data recording

**Features:** macOS Compatibility

**In-app purchases:** none


### AI

[App page](https://appshunter.io/ios/app/ai-ring/id6745692266)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Goniometer free?

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

### Is AI free?

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

### Do Goniometer or AI have ads?

Neither Goniometer nor AI shows ads.

### Which is updated more often, Goniometer or AI?

Goniometer ships an update monthly, and AI every 3 weeks. Most recently, Goniometer was updated on July 8, 2026 and AI on September 9, 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.*