# SyncLinking vs Protractor Angle Meter

The clearest difference is in-app purchases: SyncLinking at none against Protractor Angle Meter's 1. SyncLinking also leads on update cadence (weekly vs fortnightly) and iOS requirement (12.0 vs 17.6). On price, ads and device support there is nothing between them.

Both are free to download. Protractor Angle Meter sells 1 one-off in-app purchase. SyncLinking asks for nothing beyond the download.

SyncLinking ships an update weekly, Protractor Angle Meter fortnightly. The most recent releases landed on September 18, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | SyncLinking | Protractor Angle Meter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/protractor-angle-meter/id6778436306/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Fortnightly |
| Monetization | — | Free with in-app purchases |
| Size | 57 MB | 56 MB |
| Requires iOS | **12.0** | 17.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [SyncLinking Inc](https://appshunter.io/developer/1726095165) | [Romiick LLC](https://appshunter.io/developer/1716146475) |

## What reviewers say

### SyncLinking

[App page](https://appshunter.io/ios/app/synclinking/id6476166790)

**Features:** macOS Compatibility

**In-app purchases:** none


### Protractor Angle Meter

[App page](https://appshunter.io/ios/app/protractor-angle-meter/id6778436306)

This app allows you to measure angles from photos using your device's camera or existing images. Add multiple measurements with customizable colors and labels, and view results in various units. Save your work automatically and export high-quality images of your measurements.

**Highlights:** Measure angles from photos, Live camera or photo library input, Multiple angle measurements per photo, Customizable color and labels, Degrees, radians, or slope percentage output, Precision Loupe for accuracy, Automatic saving

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Pass | $9.99 | one-time |


## Frequently asked questions

### Is SyncLinking free?

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

### Is Protractor Angle Meter free?

Protractor Angle Meter is free to download, with in-app purchases available.

### Do SyncLinking or Protractor Angle Meter have ads?

Neither SyncLinking nor Protractor Angle Meter shows ads.

### Which is updated more often, SyncLinking or Protractor Angle Meter?

SyncLinking ships an update weekly, and Protractor Angle Meter fortnightly. Most recently, SyncLinking was updated on September 18, 2026 and Protractor Angle Meter on October 6, 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.*