# Format Bio vs Viften

The clearest difference is update cadence: Format Bio at every 4 days against Viften's every 30 months. Format Bio also leads on iOS requirement (13.0 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.

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

Format Bio ships an update every 4 days, Viften every 30 months. The most recent releases landed on October 5, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Format Bio | Viften |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 30 months |
| Size | 14 MB | 14 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [1StepAhead](https://appshunter.io/developer/524040923) | [ebillet a/s](https://appshunter.io/developer/504282633) |

## What reviewers say

### Format Bio

[App page](https://appshunter.io/ios/app/format-bio/id1571456939)

**Features:** macOS Compatibility

**In-app purchases:** none


### Viften

[App page](https://appshunter.io/ios/app/viften/id1591374412)

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

**In-app purchases:** none


## Frequently asked questions

### Is Format Bio free?

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

### Is Viften free?

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

### Do Format Bio or Viften have ads?

Neither Format Bio nor Viften shows ads.

### Which is updated more often, Format Bio or Viften?

Format Bio ships an update every 4 days, and Viften every 30 months. Most recently, Format Bio was updated on October 5, 2026 and Viften on October 14, 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.*