# Time Diary vs 给未来写封信

The clearest difference is ads: 给未来写封信 at none against Time Diary's shown. Time Diary's advantage is review sentiment (99% vs 83%) and ratings volume (429 vs 28). On price, rating, update cadence and in-app purchases there is nothing between them.

Both are free to download. Time Diary sells 17 one-off in-app purchases and 给未来写封信 sells 8 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.9 for Time Diary against 4.8 for 给未来写封信. That said, the two scores are not equally well evidenced: Time Diary has 429 ratings behind it against 28, so its average is the more settled of the two. Written reviews are what separate them: 99% of Time Diary's written reviews are positive against 83% of 给未来写封信's.

Time Diary ships an update monthly, 给未来写封信 every 3 weeks. The most recent releases landed on September 29, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Time Diary | 给未来写封信 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (429 ratings)](https://appshunter.io/ios/app/time-diary/id1229593919/reviews)** | [4.8 (28 ratings)](https://appshunter.io/ios/app/id1330852849/reviews) |
| Number of ratings | **429** | 28 |
| Positive reviews | **98.5% of reviews** | 82.6% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 225 MB | 122 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Nanjing LeMeng Network Technology Co., Ltd](https://appshunter.io/developer/1431596998) | [庆桐 马](https://appshunter.io/developer/1176019983) |

## What reviewers say

### Time Diary

[App page](https://appshunter.io/ios/app/time-diary/id1229593919)

Record daily activities, experiences, thoughts, and ideas in a digital diary. Organize and easily find past entries with powerful search and filtering options. Sync your data across all your devices for seamless access.

**Highlights:** Record activities, experiences, thoughts, and ideas, Organize diary entries and notes, Powerful search by keyword, date, folder, and tags, Sync data across all devices, Filter entries by date, folder, and tags

**Features:** macOS Compatibility

**In-app purchases (17)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 3元素材 | $0.99 | one-time |
| 6元素材 | $0.99 | one-time |
| 订阅-月卡优惠 | $0.99 | one-time |
| 300时光贝 | $0.99 | one-time |
| 600时光贝 | $0.99 | one-time |
| 时光月卡 | $0.99 | one-time |
| 1元素材 | $0.99 | one-time |
| 云端容量-2G | $1.99 | one-time |
| 1200时光贝 | $1.99 | one-time |
| 云端容量-5G | $2.99 | one-time |
| 时光年卡 | $3.99 | one-time |
| 永久VIP（折扣） | $3.99 | one-time |
| 永久VIP | $5.99 | one-time |
| 永久VIP（折扣） | $5.99 | one-time |
| 时光年卡（优惠） | $5.99 | one-time |
| 4000时光贝 | $5.99 | one-time |
| 永久VIP（折扣） | $9.99 | one-time |


### 给未来写封信

[App page](https://appshunter.io/ios/app/id1330852849)

**Features:** Vision Pro support

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 有声信件 | $0.99 | one-time |
| 照片信件 | $0.99 | one-time |
| 录音+照片信件 | $0.99 | one-time |
| 普通信件+1 | $0.99 | one-time |
| Hope Card | $0.99 | one-time |
| 标准版纸质信 | $5.99 | one-time |
| 礼盒版纸质信 | $9.99 | one-time |
| True Love Card | $12.99 | one-time |


## Frequently asked questions

### Is Time Diary free?

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

### Is 给未来写封信 free?

给未来写封信 is free to download, with in-app purchases available.

### Which has better reviews, Time Diary or 给未来写封信?

Time Diary is rated higher. Time Diary averages 4.9 out of 5 from 429 ratings, while 给未来写封信 averages 4.8 from 28 ratings.

### Do Time Diary or 给未来写封信 have ads?

Time Diary shows ads; 给未来写封信 does not.

### Which is updated more often, Time Diary or 给未来写封信?

Time Diary ships an update monthly, and 给未来写封信 every 3 weeks. Most recently, Time Diary was updated on September 29, 2026 and 给未来写封信 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.*