# Silent Observer vs Prayer and Notes

The clearest difference is update cadence: Prayer and Notes at every 2 weeks against Silent Observer's every 34 months. Silent Observer's advantage is iOS requirement (9.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

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

Silent Observer ships an update every 34 months, Prayer and Notes every 2 weeks. The most recent releases landed on October 4, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Silent Observer | Prayer and Notes |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 34 months | **Every 2 weeks** |
| Size | 30 MB | 57 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Navigate360, LLC](https://appshunter.io/developer/1562199710) | [Kang Engineering Systems LLC](https://appshunter.io/developer/1506663175) |

## What reviewers say

### Silent Observer

[App page](https://appshunter.io/ios/app/silent-observer/id1209909707)

**Features:** macOS Compatibility

**In-app purchases:** none


### Prayer and Notes

[App page](https://appshunter.io/ios/app/prayer-and-notes/id6752529999)

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

**In-app purchases:** none


## Frequently asked questions

### Is Silent Observer free?

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

### Is Prayer and Notes free?

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

### Do Silent Observer or Prayer and Notes have ads?

Neither Silent Observer nor Prayer and Notes shows ads.

### Which is updated more often, Silent Observer or Prayer and Notes?

Silent Observer ships an update every 34 months, and Prayer and Notes every 2 weeks. Most recently, Silent Observer was updated on October 4, 2026 and Prayer and Notes on October 7, 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.*