# OnWatch vs rock space

The clearest difference is rating: rock space at 5.0 against OnWatch's 1.5. OnWatch's advantage is ratings volume (11 vs 1). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

rock space holds the better App Store score, 5.0 against 1.5. That said, the two scores are not equally well evidenced: OnWatch has 11 ratings behind it against 1, so its average is the more settled of the two.

OnWatch ships an update every 2 months, rock space monthly. The most recent releases landed on October 24, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | OnWatch | rock space |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.5 (11 ratings)](https://appshunter.io/ios/app/onwatch/id6446225287/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/rock-space/id6457258148/reviews)** |
| Number of ratings | **11** | 1 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | Free | Free |
| Size | 165 MB | 42 MB |
| Requires iOS | **12.1** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [怡 吴](https://appshunter.io/developer/1581150063) | [ROCK PATH S.R.L](https://appshunter.io/developer/1538944925) |

## What reviewers say

### OnWatch

[App page](https://appshunter.io/ios/app/onwatch/id6446225287)

Track your fitness with real-time data and historical records. Monitor sleep patterns, customize smart band settings, and record activities like cycling and running with visual data. Enjoy rich watch face content with the latest chip.

**Highlights:** Real-time exercise data tracking, Sleep pattern analysis, Smart band customization, Activity recording (cycling, running), Visualized data results, Rich watch face content

**Features:** macOS Compatibility

**In-app purchases:** none


### rock space

[App page](https://appshunter.io/ios/app/rock-space/id6457258148)

This app connects to specialized offline devices for phone customization. It enables users to send custom data for phone screen protectors, print stickers via order codes, and prepare designs for phone case creation.

**Highlights:** Bluetooth connection for phone film-making machines, Retrieve and send custom data for screen protectors, Local network connection for sticker printers, Print custom stickers using order codes, Prepare designs for phone case making machines

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is OnWatch free?

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

### Is rock space free?

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

### Which has better reviews, OnWatch or rock space?

rock space is rated higher. OnWatch averages 1.5 out of 5 from 11 ratings, while rock space averages 5.0 from 1 ratings.

### Do OnWatch or rock space have ads?

Neither OnWatch nor rock space shows ads.

### Which is updated more often, OnWatch or rock space?

OnWatch ships an update every 2 months, and rock space monthly. Most recently, OnWatch was updated on October 24, 2026 and rock space on September 19, 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.*