# Exchange Message vs Private Diary

The clearest difference is update cadence: Private Diary at every 3 weeks against Exchange Message's every 4 months. Exchange Message's advantage is ratings volume (129 vs 2). On price, rating, review sentiment and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for Exchange Message against 5.0 for Private Diary. That said, the two scores are not equally well evidenced: Exchange Message has 129 ratings behind it against 2, so its average is the more settled of the two. Written reviews are what separate them: 98% of Exchange Message's written reviews are positive against 100% of Private Diary's.

Exchange Message ships an update every 4 months, Private Diary every 3 weeks. The most recent releases landed on October 22, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Exchange Message | Private Diary |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (129 ratings)](https://appshunter.io/ios/app/exchange-message/id1229837698/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/private-diary-locked-journal/id6791190572/reviews)** |
| Number of ratings | **129** | 2 |
| Positive reviews | 98.2% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 51 MB | 1 MB |
| Requires iOS | 15.6 | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [EXCHANGE, THE](https://appshunter.io/developer/1229837697) | [Quanhong Zhao](https://appshunter.io/developer/1021819092) |

## What reviewers say

### Exchange Message

[App page](https://appshunter.io/ios/app/exchange-message/id1229837698)

This app provides tools to guide Christians in sharing their faith. It focuses on the concept of "The Exchange" – Jesus taking on sin in exchange for salvation. It aims to help believers fulfill the Christian call to evangelism.

**Highlights:** Guidance for sharing faith, Tools for ministry, Explains 'The Exchange' concept, Focuses on evangelism

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use and understand
- ✨ Clear and compelling gospel presentation
- 💡 Interactive illustrations and graphics
- 📚 Helpful Bible study features
- 🌍 Multiple language support

**What reviewers complain about**

- ❓ Digital copies not received
- ❓ No way to contact support for issues

**Reported bugs**

- Digital orders not received after syncing
- Unable to contact support for order issues

**Requested features**

- Support for Spanish language


### Private Diary

[App page](https://appshunter.io/ios/app/private-diary-locked-journal/id6791190572)

This app provides a secure, private space for journaling with a unique decoy password feature. All entries are stored locally, ensuring your secrets remain yours alone. Enjoy a minimalist writing experience designed for focus and privacy.

**Highlights:** Decoy passcode for dual-access privacy, 100% local offline storage, Typewriter-style writing experience, Minimalist black-and-white UI, No internet access or cloud storage, Ad-free experience

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

**In-app purchases:** none


## Frequently asked questions

### Is Exchange Message free?

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

### Is Private Diary free?

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

### Which has better reviews, Exchange Message or Private Diary?

Private Diary is rated higher. Exchange Message averages 5.0 out of 5 from 129 ratings, while Private Diary averages 5.0 from 2 ratings.

### Do Exchange Message or Private Diary have ads?

Neither Exchange Message nor Private Diary shows ads.

### Which is updated more often, Exchange Message or Private Diary?

Exchange Message ships an update every 4 months, and Private Diary every 3 weeks. Most recently, Exchange Message was updated on October 22, 2026 and Private Diary on October 11, 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.*