# 白丁友记 vs 天潮信使

The clearest difference is rating: 天潮信使 at 5.0 against 白丁友记's 4.0. 天潮信使 also leads on in-app purchases (none vs 3) and update cadence (daily vs fortnightly). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. 白丁友记 sells 3 one-off in-app purchases. 天潮信使 asks for nothing beyond the download.

天潮信使 holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

白丁友记 ships an update fortnightly, 天潮信使 daily. Both last shipped on October 30, 2026.

## The numbers

| Metric | 白丁友记 | 天潮信使 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (1 ratings)](https://appshunter.io/ios/app/id1597540766/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/id6466742277/reviews)** |
| Number of ratings | 1 | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Fortnightly | **Daily** |
| Monetization | Free with in-app purchases | — |
| Size | 54 MB | 21 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [士诚 赵](https://appshunter.io/developer/1596543342) | [The Vision Times Limited](https://appshunter.io/developer/1579829009) |

## What reviewers say

### 白丁友记

[App page](https://appshunter.io/ios/app/id1597540766)

This app offers a unique space for private communication and sharing. Connect with others through letters, voice messages, or shared diaries, and find solace in a late-night radio show. It's a place to express yourself when real-life conversations are difficult.

**Highlights:** Private letter writing with customizable stamps and stationery, Shared diary entries for close friends, Voice messaging and audio recordings, Late-night radio show for shared stories, Connect with pen pals, voice friends, and secret friends

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 邮票包 | $0.99 | one-time |
| 季会员 | $1.99 | one-time |
| 年会员 | $3.99 | one-time |


### 天潮信使

[App page](https://appshunter.io/ios/app/id6466742277)

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

**In-app purchases:** none


## Frequently asked questions

### Is 白丁友记 free?

白丁友记 is free to download, with in-app purchases available.

### Is 天潮信使 free?

天潮信使 is free to download, with no in-app purchases.

### Which has better reviews, 白丁友记 or 天潮信使?

天潮信使 is rated higher. 白丁友记 averages 4.0 out of 5 from 1 ratings, while 天潮信使 averages 5.0 from 1 ratings.

### Do 白丁友记 or 天潮信使 have ads?

Neither 白丁友记 nor 天潮信使 shows ads.

### Which is updated more often, 白丁友记 or 天潮信使?

白丁友记 ships an update fortnightly, and 天潮信使 daily. Most recently, 白丁友记 was updated on October 30, 2026 and 天潮信使 on October 30, 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.*