# SeaStar vs Lehrercoach

The clearest difference is update cadence: SeaStar at every 2 months against Lehrercoach's every 9 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. SeaStar sells 4 one-off in-app purchases and Lehrercoach sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

SeaStar ships an update every 2 months, Lehrercoach every 9 months. The most recent releases landed on September 19, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | SeaStar | Lehrercoach |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 9 months |
| Size | 39 MB | 138 MB |
| Requires iOS | **15.1** | 16.4 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 17+ | 17+ |
| Developer | [SeaStarTV](https://appshunter.io/developer/1757863897) | [Petra Heigele](https://appshunter.io/developer/1759387682) |

## What reviewers say

### SeaStar

[App page](https://appshunter.io/ios/app/seastar/id6550922223)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Planlos um den Planeten | $8.99 | one-time |
| Wayne Morris Rockmusik | $8.99 | one-time |
| Südafrika - der Kinofilm | $8.99 | one-time |
| Entdecke Deine beste Version | $34.99 | one-time |


### Lehrercoach

[App page](https://appshunter.io/ios/app/lehrercoach/id6575387105)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Gelassen unterrichten | $8.99 | one-time |
| "Wöchentliche Impulse" | $8.99 | one-time |


## Frequently asked questions

### Is SeaStar free?

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

### Is Lehrercoach free?

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

### Do SeaStar or Lehrercoach have ads?

Neither SeaStar nor Lehrercoach shows ads.

### Which is updated more often, SeaStar or Lehrercoach?

SeaStar ships an update every 2 months, and Lehrercoach every 9 months. Most recently, SeaStar was updated on September 19, 2026 and Lehrercoach 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.*