# Time Caps vs Time Letter

Time Caps and Time Letter are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Time Caps sells 6 in-app purchases, starting at $3.99 per month and Time Letter sells 4 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Time Caps ships an update every 6 weeks, Time Letter monthly. The most recent releases landed on September 26, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Time Caps | Time Letter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (153 ratings)](https://appshunter.io/ios/app/time-caps-a-future-diary/id1195852313/reviews)** | — |
| Number of ratings | **153** | — |
| Positive reviews | 83.7% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Monthly** |
| Monetization | Freemium | — |
| Size | 18 MB | 52 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [灿海 陈](https://appshunter.io/developer/1068107051) | [名易 李](https://appshunter.io/developer/1886758085) |

## What reviewers say

### Time Caps

[App page](https://appshunter.io/ios/app/time-caps-a-future-diary/id1195852313)

This app allows users to create a digital diary with various types of entries, including daily reflections, future messages, and voice notes. It offers features like mood-based coloring, serendipitous retrieval of past entries, and secure privacy protection. Users can also subscribe for enhanced functionalities and premium features.

**Highlights:** Daily mood-based journal entries, Write messages to your future self, Record voice notes for the future, Serendipitous retrieval of past entries, Secure passcode and biometric lock, Daily reminders and widgets, Offline functionality

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Time Traveler Pro (Monthly) | $3.99 | per month |
| Time Traveler Pro (Yearly) | $24.99 | per year |
| 1200 Cap Pieces | $0.99 | one-time |
| 2888 Cap Pieces | $1.99 | one-time |
| 3600 Cap Pieces | $2.99 | one-time |
| 5000 Cap Pieces | $3.99 | one-time |

**What reviewers like**

- 💡 Unique concept of time capsules
- 👍 Easy and simple to use
- 💖 Encourages journaling habit
- 😊 Calming and beautiful design
- ✨ Helps self-reflection and growth

**What reviewers complain about**

- 💰 In-app purchases for features
- 💸 High cost for capsules/features
- 🔒 Password lock feature requires subscription
- 📈 Difficulty in exporting data
- 😔 Word cap can be restrictive

**Reported bugs**

- 🐛 Interface issues with updates
- 🐛 Face ID issues reported

**Requested features**

- Ability to export previous posts
- Lower gem prices for capsules
- More options for describing the day
- Add template feature
- Support dark mode


### Time Letter

[App page](https://appshunter.io/ios/app/time-letter/id6761035606)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro - Monthly | $1.99 | per month |
| Max - Monthly | $5.99 | per month |
| Pro - Annual | $14.99 | per year |
| Max - Annual | $34.99 | per year |


## Frequently asked questions

### Is Time Caps free?

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

### Is Time Letter free?

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

### Do Time Caps or Time Letter have ads?

Neither Time Caps nor Time Letter shows ads.

### Which is updated more often, Time Caps or Time Letter?

Time Caps ships an update every 6 weeks, and Time Letter monthly. Most recently, Time Caps was updated on September 26, 2026 and Time Letter on September 18, 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.*