# Trayn vs slamstr

The clearest difference is ads: Trayn at none against slamstr's shown. On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Trayn ships an update monthly, slamstr fortnightly. The most recent releases landed on September 15, 2026 and June 11, 2026 respectively.

## The numbers

| Metric | Trayn | slamstr |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Fortnightly** |
| Size | 2 MB | 54 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Trayn, Inc](https://appshunter.io/developer/849803887) | [slamstr GmbH](https://appshunter.io/developer/1746273779) |

## What reviewers say

### Trayn

[App page](https://appshunter.io/ios/app/trayn/id854352153)

**Features:** Vision Pro support

**In-app purchases:** none


### slamstr

[App page](https://appshunter.io/ios/app/slamstr/id6502635375)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Trayn free?

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

### Is slamstr free?

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

### Do Trayn or slamstr have ads?

slamstr shows ads; Trayn does not.

### Which is updated more often, Trayn or slamstr?

Trayn ships an update monthly, and slamstr fortnightly. Most recently, Trayn was updated on September 15, 2026 and slamstr on June 11, 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.*