# ZenFast vs BADNII

The clearest difference is in-app purchases: BADNII at none against ZenFast's 2. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. ZenFast sells 2 in-app purchases, starting at $0.99 per month. BADNII asks for nothing beyond the download.

## The numbers

| Metric | ZenFast | BADNII |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | — | Weekly |
| Size | 23 MB | 32 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Beibi Technology Co., Ltd.](https://appshunter.io/developer/1721179393) | [BADNII HEALTHY AND THERAPEUTIC NUTRITION](https://appshunter.io/developer/1890852124) |

## What reviewers say

### ZenFast

[App page](https://appshunter.io/ios/app/zenfast-fasting-tracker/id6743153648)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| All Access (1 month) | $0.99 | per month |
| All Access (lifetime) | $4.99 | one-time |


### BADNII

[App page](https://appshunter.io/ios/app/badnii/id6761681731)

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

**In-app purchases:** none


## Frequently asked questions

### Is ZenFast free?

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

### Is BADNII free?

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

### Do ZenFast or BADNII have ads?

Neither ZenFast nor BADNII shows ads.

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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.*