# PrayDOS vs HolyDay

The clearest difference is in-app purchases: PrayDOS at none against HolyDay's 3. PrayDOS also leads on device support (3 vs 1) and iOS requirement (15.0 vs 18.0). On price, update cadence and ads there is nothing between them.

Both are free to download. HolyDay sells 3 one-off in-app purchases. PrayDOS asks for nothing beyond the download.

Both ship on a similar rhythm, roughly fortnightly. Both last shipped on October 25, 2026.

## The numbers

| Metric | PrayDOS | HolyDay |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | Fortnightly |
| Size | 31 MB | 21 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Gregory Johnston](https://appshunter.io/developer/1502034357) | [Matthias Cadet](https://appshunter.io/developer/6774578626) |

## What reviewers say

### PrayDOS

[App page](https://appshunter.io/ios/app/praydos/id6451497427)

**Features:** Vision Pro support

**In-app purchases:** none


### HolyDay

[App page](https://appshunter.io/ios/app/holyday-prayer-journal/id6774578624)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| A Small Step for HolyDay | $3.99 | one-time |
| Invest in the project | $7.99 | one-time |
| Contribute to the cause | $14.99 | one-time |


## Frequently asked questions

### Is PrayDOS free?

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

### Is HolyDay free?

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

### Do PrayDOS or HolyDay have ads?

Neither PrayDOS nor HolyDay shows ads.

### Which is updated more often, PrayDOS or HolyDay?

PrayDOS ships an update fortnightly, and HolyDay fortnightly. Most recently, PrayDOS was updated on October 25, 2026 and HolyDay 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.*