# Unsent Letters vs Orbit

The clearest difference is ads: Unsent Letters at none against Orbit's shown. Unsent Letters also leads on update cadence (every 2 days vs fortnightly). Orbit's advantage is iOS requirement (16.4 vs 18.5). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Unsent Letters sells 3 in-app purchases, starting at $3.99 per month and Orbit sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Unsent Letters ships an update every 2 days, Orbit fortnightly. The most recent releases landed on October 25, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Unsent Letters | Orbit |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 days** | Fortnightly |
| Size | 58 MB | 64 MB |
| Requires iOS | 18.5 | **16.4** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Raul Muresan](https://appshunter.io/developer/1805587360) | [Feryanto Feryanto](https://appshunter.io/developer/6792641445) |

## What reviewers say

### Unsent Letters

[App page](https://appshunter.io/ios/app/unsent-letters/id6748039152)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $3.99 | per month |
| Premium Yearly | $8.99 | per year |
| Lifetime Premium | $12.99 | one-time |


### Orbit

[App page](https://appshunter.io/ios/app/orbit-thought-capsule/id6792641443)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 40 Paper Clips | $0.99 | one-time |
| 120 Paper Clips | $2.49 | one-time |
| 320 Paper Clips | $4.99 | one-time |


## Frequently asked questions

### Is Unsent Letters free?

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

### Is Orbit free?

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

### Do Unsent Letters or Orbit have ads?

Orbit shows ads; Unsent Letters does not.

### Which is updated more often, Unsent Letters or Orbit?

Unsent Letters ships an update every 2 days, and Orbit fortnightly. Most recently, Unsent Letters was updated on October 25, 2026 and Orbit on October 16, 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.*