# Osily vs WatchAuth

The clearest difference is review sentiment: WatchAuth at 100% against Osily's 0%. WatchAuth also leads on update cadence (every 3 months vs every 8 months). Osily's advantage is in-app purchases (none vs 2). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. WatchAuth sells 2 one-off in-app purchases. Osily asks for nothing beyond the download.

Osily ships an update every 8 months, WatchAuth every 3 months. The most recent releases landed on October 9, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Osily | WatchAuth |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/watchauth-watch-verification/id6757083850/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 3 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 65 MB | 20 MB |
| Requires iOS | 14.0 | **13.4** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Home Domotic Developments, S.L.](https://appshunter.io/developer/1481462876) | [kaan dinckal](https://appshunter.io/developer/1853966081) |

## What reviewers say

### Osily

[App page](https://appshunter.io/ios/app/osily/id1483434494)

Easily control your smart radiators from anywhere. Group devices by zones, adjust temperatures remotely, and personalize heating schedules. Monitor energy consumption and costs to optimize your heating system.

**Highlights:** Remote temperature adjustment, Zone grouping for radiators, Customizable heating schedules, Energy consumption monitoring, Preset heating programs, Screen background customization

**Features:** macOS Compatibility

**In-app purchases:** none


### WatchAuth

[App page](https://appshunter.io/ios/app/watchauth-watch-verification/id6757083850)

Analyze and evaluate the authenticity of luxury and collectible watches using advanced image analysis and a comprehensive reference database. Upload photos of your watch, box, and papers for an in-depth visual assessment and receive a structured authenticity report.

**Highlights:** Image analysis for watch authenticity, Reference database comparison, AI-assisted technology, Analysis of watch components, Box and papers verification, Structured authenticity report

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Watch Mechanism Sound Analysis | $0.99 | one-time |
| Watch Authentication Report | $4.99 | one-time |


## Frequently asked questions

### Is Osily free?

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

### Is WatchAuth free?

WatchAuth is free to download, with in-app purchases available.

### Do Osily or WatchAuth have ads?

Neither Osily nor WatchAuth shows ads.

### Which is updated more often, Osily or WatchAuth?

Osily ships an update every 8 months, and WatchAuth every 3 months. Most recently, Osily was updated on October 9, 2026 and WatchAuth on October 13, 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.*