# 白丁友记 vs Simple

The clearest difference is review sentiment: 白丁友记 at 100% against Simple's 56%. Simple's advantage is rating (4.6 vs 4.0) and update cadence (every 3 days vs every 2 weeks). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. 白丁友记 sells 11 one-off in-app purchases and Simple sells 24 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Simple holds the better App Store score, 4.6 against 4.0. That said, the two scores are not equally well evidenced: Simple has 10 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 100% of 白丁友记's written reviews are positive against 56% of Simple's, so the app with the better star average is not the one people write more warmly about.

白丁友记 ships an update every 2 weeks, Simple every 3 days. The most recent releases landed on September 27, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | 白丁友记 | Simple |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (1 ratings)](https://appshunter.io/ios/app/id1597540766/reviews) | **[4.6 (10 ratings)](https://appshunter.io/ios/app/simple/id6714463207/reviews)** |
| Number of ratings | 1 | **10** |
| Positive reviews | **100.0% of reviews** | 55.6% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 3 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 85 MB | 174 MB |
| Requires iOS | **15.0** | 15.5 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [士诚 赵](https://appshunter.io/developer/1596543342) | [Beijing Summer Love Technology Co., Ltd](https://appshunter.io/developer/983476475) |

## What reviewers say

### 白丁友记

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

This app offers a unique space for private sharing and connection through letters, voice messages, and shared diaries. It simulates real-world correspondence with customizable stamps and stationery, fostering deep connections with pen pals, voice friends, and diary companions.

**Highlights:** Private letter writing with simulated postage, Shared diary entries for close friends, Voice message and audio recording, Customizable stamps, stationery, and envelopes, Late-night radio for shared stories, Connect with pen pals and voice friends

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

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 4金币 | $0.99 | one-time |
| 2金币 | $0.99 | one-time |
| 邮票包 | $0.99 | one-time |
| 季会员 | $1.99 | one-time |
| 8金币 | $1.99 | one-time |
| 12金币 | $2.99 | one-time |
| 年会员 | $3.99 | one-time |
| 20金币 | $4.99 | one-time |
| 永久vip | $4.99 | one-time |
| 终身会员 | $5.99 | one-time |
| 28金币 | $5.99 | one-time |


### Simple

[App page](https://appshunter.io/ios/app/simple/id6714463207)

This app focuses on building genuine friendships without romantic pursuits or social pressure. It offers a space for authentic self-expression, interest-based connections, and private group interactions. Discover like-minded individuals in a relaxed and sincere social environment.

**Highlights:** Friendship-focused social networking, Authentic self-expression, No romantic pursuits, Interest-based communities, Private group chats, Temporary posts, Virtual location interaction

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

**In-app purchases (24)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 6 元礼包 | $0.99 | one-time |
| 30星光 | $0.99 | one-time |
| 1元礼包 | $0.99 | one-time |
| 赞赏1元 | $0.99 | one-time |
| 赞赏6元 | $0.99 | one-time |
| 端午限定礼包 | $2.99 | one-time |
| 18 元礼包 | $2.99 | one-time |
| 180星光 | $2.99 | one-time |
| 赞赏20元 | $2.99 | one-time |
| 160星光 | $3.99 | one-time |
| 守望者计划-1个月 | $3.99 | one-time |
| 赞赏50元 | $6.99 | one-time |
| 守望者计划-4个月 | $9.99 | one-time |
| 守望者计划-3个月 | $9.99 | one-time |
| 370星光 | $9.99 | one-time |
| 540星光 | $14.99 | one-time |
| 赞赏100元 | $14.99 | one-time |
| 1280星光 | $19.99 | one-time |
| 1300星光 | $29.99 | one-time |
| 守望者计划-1年 | $29.99 | one-time |
| 赞赏200元 | $29.99 | one-time |
| 守望者计划-1年 | $34.99 | one-time |
| 1850星光 | $49.99 | one-time |
| 6480星光 | $99.99 | one-time |


## Frequently asked questions

### Is 白丁友记 free?

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

### Is Simple free?

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

### Which has better reviews, 白丁友记 or Simple?

Simple is rated higher. 白丁友记 averages 4.0 out of 5 from 1 ratings, while Simple averages 4.6 from 10 ratings.

### Do 白丁友记 or Simple have ads?

Neither 白丁友记 nor Simple shows ads.

### Which is updated more often, 白丁友记 or Simple?

白丁友记 ships an update every 2 weeks, and Simple every 3 days. Most recently, 白丁友记 was updated on September 27, 2026 and Simple on September 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.*