# Sure vs FocusReader Pro

The clearest difference is in-app purchases: Sure at none against FocusReader Pro's 2. Sure also leads on ads (none vs shown) and update cadence (every 4 weeks vs every 2 months). On price and device support there is nothing between them.

Both are free to download. FocusReader Pro sells 2 in-app purchases, starting at $39.99 per year. Sure asks for nothing beyond the download.

Sure ships an update every 4 weeks, FocusReader Pro every 2 months. Both last shipped on October 16, 2026.

## The numbers

| Metric | Sure | FocusReader Pro |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 4 weeks** | Every 2 months |
| Size | 33 MB | 8 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Konstantin Kovalev](https://appshunter.io/developer/1850746967) | [Liu Yang](https://appshunter.io/developer/1836334792) |

## What reviewers say

### Sure

[App page](https://appshunter.io/ios/app/sure-did-i-turn-it-off/id6754885481)

**Features:** macOS Compatibility

**In-app purchases:** none


### FocusReader Pro

[App page](https://appshunter.io/ios/app/focusreader-pro/id6759478111)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FocusReader Pro Yearly Subscription | $39.99 | per year |
| FocusReader Pro Lifetime | $119.99 | one-time |


## Frequently asked questions

### Is Sure free?

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

### Is FocusReader Pro free?

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

### Do Sure or FocusReader Pro have ads?

FocusReader Pro shows ads; Sure does not.

### Which is updated more often, Sure or FocusReader Pro?

Sure ships an update every 4 weeks, and FocusReader Pro every 2 months. Most recently, Sure was updated on October 16, 2026 and FocusReader Pro on October 16, 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.*