# Time Capsule vs Todo

The clearest difference is rating: Todo at 5.0 against Time Capsule's 4.3. Todo also leads on in-app purchases (none vs 10) and ads (none vs shown). On price, ratings volume, update cadence and device support there is nothing between them.

Both are free to download. Time Capsule sells 10 in-app purchases, starting at $0.99 per month. Todo asks for nothing beyond the download.

Todo holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 7 and 4 respectively. Written reviews point the same way: 79% of Time Capsule's written reviews are positive against 100% of Todo's.

Both ship on a similar rhythm, roughly every 6 weeks. The most recent releases landed on October 26, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Time Capsule | Todo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (7 ratings)](https://appshunter.io/ios/app/time-capsule-future-letters/id1358237203/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/todo-cat/id1590485332/reviews)** |
| Number of ratings | **7** | 4 |
| Positive reviews | 79.2% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 6 weeks | Every 6 weeks |
| Monetization | Free with in-app purchases | **Free** |
| Size | 134 MB | 30 MB |
| Requires iOS | 17.0 | **14.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [希 陈](https://appshunter.io/developer/1353019342) | [镔钥 陆](https://appshunter.io/developer/1551816513) |

## What reviewers say

### Time Capsule

[App page](https://appshunter.io/ios/app/time-capsule-future-letters/id1358237203)

Send letters to your future self or loved ones. Capture memories with photos and heartfelt messages. Experience the joy of receiving a message from the past.

**Highlights:** Send future dated electronic letters, Include photos with your messages, Write short love letters with photos, Receive physical paper letters, Capture and store memories, Communicate with your future self

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 时间胶囊-月度超级会员服务 | $0.99 | per month |
| 时间胶囊-年度超级会员 | $2.99 | per year |
| 获取不限字数的信纸 | $0.99 | one-time |
| 给未来寄一封带照片的信 | $0.99 | one-time |
| 给你的Ta寄一封三行情书 | $0.99 | one-time |
| 时间胶囊-永久去广告 | $0.99 | one-time |
| 纸短情长-纸质信纸普通版 | $4.99 | one-time |
| 时间胶囊超级会员 | $5.99 | one-time |
| 纸短情长-纸质信纸升级版 | $9.99 | one-time |
| 纸短情长-纸质信纸尊享版 | $19.99 | one-time |


### Todo

[App page](https://appshunter.io/ios/app/todo-cat/id1590485332)

Organize your life with a charming cat companion. This to-do list app makes managing tasks, setting reminders, and focusing on your goals more enjoyable with its playful cartoon style and interactive features.

**Highlights:** Task capture and organization, Customizable reminders, 25-minute focus timer, Lock Screen and Dynamic Island integration, Home screen widgets, StandBy support

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

**In-app purchases:** none


## Frequently asked questions

### Is Time Capsule free?

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

### Is Todo free?

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

### Which has better reviews, Time Capsule or Todo?

Todo is rated higher. Time Capsule averages 4.3 out of 5 from 7 ratings, while Todo averages 5.0 from 4 ratings.

### Do Time Capsule or Todo have ads?

Time Capsule shows ads; Todo does not.

### Which is updated more often, Time Capsule or Todo?

Time Capsule ships an update every 6 weeks, and Todo every 6 weeks. Most recently, Time Capsule was updated on October 26, 2026 and Todo 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.*