# "proOSBB" vs Storyvore

The clearest difference is in-app purchases: "proOSBB" at none against Storyvore's 2. "proOSBB" also leads on iOS requirement (15.1 vs 18.5). Storyvore's advantage is update cadence (fortnightly vs every 2 months). On price, ads and device support there is nothing between them.

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

"proOSBB" ships an update every 2 months, Storyvore fortnightly. The most recent releases landed on November 6, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | "proOSBB" | Storyvore |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Fortnightly** |
| Size | 54 MB | 62 MB |
| Requires iOS | **15.1** | 18.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [TSENTR MUNITSYPALNYKH SYSTEM UPRAVLINNIA, TOV](https://appshunter.io/developer/1321819688) | [clement gasner](https://appshunter.io/developer/1817607753) |

## What reviewers say

### "proOSBB"

[App page](https://appshunter.io/ios/app/proosbb/id1385502270)

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

**In-app purchases:** none


### Storyvore

[App page](https://appshunter.io/ios/app/storyvore-reading-tracker/id6752299508)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $3.99 | per month |
| Yearly | $24.99 | per year |


## Frequently asked questions

### Is "proOSBB" free?

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

### Is Storyvore free?

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

### Do "proOSBB" or Storyvore have ads?

Neither "proOSBB" nor Storyvore shows ads.

### Which is updated more often, "proOSBB" or Storyvore?

"proOSBB" ships an update every 2 months, and Storyvore fortnightly. Most recently, "proOSBB" was updated on November 6, 2026 and Storyvore on November 8, 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.*