# OpenChart vs WatchOnly

The clearest difference is in-app purchases: WatchOnly at none against OpenChart's 2. WatchOnly also leads on iOS requirement (14.0 vs 17.0). OpenChart's advantage is update cadence (every 8 days vs every 6 weeks). On price, ads and device support there is nothing between them.

Both are free to download. OpenChart sells 2 in-app purchases, starting at $3.99 per month. WatchOnly asks for nothing beyond the download.

OpenChart ships an update every 8 days, WatchOnly every 6 weeks. The most recent releases landed on October 10, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | OpenChart | WatchOnly |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 8 days** | Every 6 weeks |
| Size | 67 MB | 23 MB |
| Requires iOS | 17.0 | **14.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [younghyun choi](https://appshunter.io/developer/1844194272) | [LiberBlock LLC](https://appshunter.io/developer/6787802478) |

## What reviewers say

### OpenChart

[App page](https://appshunter.io/ios/app/openchart-crypto-charts/id6778795322)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OpenChart PRO | $3.99 | per month |
| OpenChart Pro Yearly | $29.99 | per year |


### WatchOnly

[App page](https://appshunter.io/ios/app/watchonly/id6796685805)

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

**In-app purchases:** none


## Frequently asked questions

### Is OpenChart free?

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

### Is WatchOnly free?

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

### Do OpenChart or WatchOnly have ads?

Neither OpenChart nor WatchOnly shows ads.

### Which is updated more often, OpenChart or WatchOnly?

OpenChart ships an update every 8 days, and WatchOnly every 6 weeks. Most recently, OpenChart was updated on October 10, 2026 and WatchOnly on October 15, 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.*