# Stack Trainer vs decipher.media

The clearest difference is in-app purchases: decipher.media at none against Stack Trainer's 1. Stack Trainer's advantage is update cadence (every 5 days vs monthly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Stack Trainer sells 1 one-off in-app purchase. decipher.media asks for nothing beyond the download.

Stack Trainer ships an update every 5 days, decipher.media monthly. Both last shipped on October 31, 2026.

## The numbers

| Metric | Stack Trainer | decipher.media |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (8 ratings)](https://appshunter.io/ios/app/stack-trainer/id6760936559/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 71.4% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 5 days** | Monthly |
| Monetization | Freemium | — |
| Size | 124 MB | 53 MB |
| Requires iOS | 17.6 | **16.4** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Wayne Borcher](https://appshunter.io/developer/1886925894) | [GPMK IdeenWerk GmbH](https://appshunter.io/developer/6791635913) |

## What reviewers say

### Stack Trainer

[App page](https://appshunter.io/ios/app/stack-trainer/id6760936559)

Enhance your memorized deck skills with daily practice sessions. This app offers guided learning for card sequences, detailed progress tracking, and various training modes to improve recall and fluency. It's designed for magicians to master their decks efficiently.

**Highlights:** Daily practice sessions, Guided PAO learning course, Card-to-position and position-to-card recall, Speed and accuracy training modes, Progress tracking with focus cards, Support for iPhone, iPad, and Apple Watch

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Stack Trainer Pro | $19.99 | one-time |


### decipher.media

[App page](https://appshunter.io/ios/app/deciphermedia/id6791635911)

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

**In-app purchases:** none


## Frequently asked questions

### Is Stack Trainer free?

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

### Is decipher.media free?

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

### Do Stack Trainer or decipher.media have ads?

Neither Stack Trainer nor decipher.media shows ads.

### Which is updated more often, Stack Trainer or decipher.media?

Stack Trainer ships an update every 5 days, and decipher.media monthly. Most recently, Stack Trainer was updated on October 31, 2026 and decipher.media on October 31, 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.*