# LumaLink vs Letter Explainer

The clearest difference is update cadence: Letter Explainer at daily against LumaLink's weekly. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. LumaLink sells 1 one-off in-app purchase and Letter Explainer sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

LumaLink ships an update weekly, Letter Explainer daily. The most recent releases landed on October 25, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | LumaLink | Letter Explainer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Daily** |
| Size | 6 MB | 4 MB |
| Requires iOS | 18.0 | 18.0 |
| Devices | **iPhone, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Steve Knoefler](https://appshunter.io/developer/6780436848) | [Jochen Jasch](https://appshunter.io/developer/6805550762) |

## What reviewers say

### LumaLink

[App page](https://appshunter.io/ios/app/lumalink-motionlight/id6782935178)

**Features:** macOS Compatibility, Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Version | $1.99 | one-time |


### Letter Explainer

[App page](https://appshunter.io/ios/app/letter-explainer-mail-help/id6813659170)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro monthly | $3.99 | per month |
| Pro yearly | $19.99 | per year |


## Frequently asked questions

### Is LumaLink free?

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

### Is Letter Explainer free?

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

### Do LumaLink or Letter Explainer have ads?

Neither LumaLink nor Letter Explainer shows ads.

### Which is updated more often, LumaLink or Letter Explainer?

LumaLink ships an update weekly, and Letter Explainer daily. Most recently, LumaLink was updated on October 25, 2026 and Letter Explainer on October 15, 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.*