# OneMuslim vs Calibra

The clearest difference is price: Calibra at Free against OneMuslim's $3.99. On update cadence, ads, in-app purchases and device support there is nothing between them.

Calibra is free to download; OneMuslim costs $3.99 up front. OneMuslim sells 2 in-app purchases, starting at $1.99 per month and Calibra sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

OneMuslim ships an update every 2 weeks, Calibra weekly. The most recent releases landed on October 30, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | OneMuslim | Calibra |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Weekly** |
| Size | 182 MB | 10 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Maulana Rizal Hilman](https://appshunter.io/developer/1449685731) | [Globio](https://appshunter.io/developer/1758603063) |

## What reviewers say

### OneMuslim

[App page](https://appshunter.io/ios/app/onemuslim/id6756778575)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $1.99 | per month |
| Annually | $9.99 | per year |


### Calibra

[App page](https://appshunter.io/ios/app/calibra-future-self-practice/id6790159153)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Calibra Premium Monthly | $9.99 | per month |
| Calibra Premium Yearly | $99.99 | per year |


## Frequently asked questions

### Is OneMuslim free?

OneMuslim costs $3.99, and also offers in-app purchases.

### Is Calibra free?

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

### Do OneMuslim or Calibra have ads?

Neither OneMuslim nor Calibra shows ads.

### Which is updated more often, OneMuslim or Calibra?

OneMuslim ships an update every 2 weeks, and Calibra weekly. Most recently, OneMuslim was updated on October 30, 2026 and Calibra on October 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.*