# CPMS by CHAMBERS vs PrayDOS

The clearest difference is iOS requirement: CPMS by CHAMBERS at 13.0 against PrayDOS's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

CPMS by CHAMBERS ships an update monthly, PrayDOS fortnightly. The most recent releases landed on October 14, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | CPMS by CHAMBERS | PrayDOS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Fortnightly** |
| Size | 255 MB | 31 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Chambers Property Management Services Pte Ltd](https://appshunter.io/developer/1374786138) | [Gregory Johnston](https://appshunter.io/developer/1502034357) |

## What reviewers say

### CPMS by CHAMBERS

[App page](https://appshunter.io/ios/app/cpms-by-chambers/id1374786139)

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

**In-app purchases:** none


### PrayDOS

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

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is CPMS by CHAMBERS free?

CPMS by CHAMBERS is free to download, with no in-app purchases.

### Is PrayDOS free?

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

### Do CPMS by CHAMBERS or PrayDOS have ads?

Neither CPMS by CHAMBERS nor PrayDOS shows ads.

### Which is updated more often, CPMS by CHAMBERS or PrayDOS?

CPMS by CHAMBERS ships an update monthly, and PrayDOS fortnightly. Most recently, CPMS by CHAMBERS was updated on October 14, 2026 and PrayDOS on October 10, 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.*