# Calculation Time vs Prayer and Adhan Times

The clearest difference is ads: Prayer and Adhan Times at none against Calculation Time's shown. Prayer and Adhan Times also leads on update cadence (every 5 days vs every 42 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

Calculation Time ships an update every 42 months, Prayer and Adhan Times every 5 days. Both last shipped on October 25, 2026.

## The numbers

| Metric | Calculation Time | Prayer and Adhan Times |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 42 months | **Every 5 days** |
| Size | 5 MB | 4 MB |
| Requires iOS | 16.6 | **16.0** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Mert Cilli](https://appshunter.io/developer/1137367654) | [DURSUN CEM KIRAC](https://appshunter.io/developer/6773564027) |

## What reviewers say

### Calculation Time

[App page](https://appshunter.io/ios/app/calculation-time/id1479201130)

**In-app purchases:** none


### Prayer and Adhan Times

[App page](https://appshunter.io/ios/app/prayer-and-adhan-times/id6784835514)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Calculation Time free?

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

### Is Prayer and Adhan Times free?

Prayer and Adhan Times is free to download, with no in-app purchases.

### Do Calculation Time or Prayer and Adhan Times have ads?

Calculation Time shows ads; Prayer and Adhan Times does not.

### Which is updated more often, Calculation Time or Prayer and Adhan Times?

Calculation Time ships an update every 42 months, and Prayer and Adhan Times every 5 days. Most recently, Calculation Time was updated on October 25, 2026 and Prayer and Adhan Times on October 25, 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.*