Stack Trainer vs decipher.media
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Stack Trainer
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.
- 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
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Learn your memorized deck, then keep it sharp with a few minutes of practice a day. Practicing Mnemonica is free. Stack Trainer is built for magicians who use a memorized deck. Practice daily, build a streak, and see exactly which cards are slipping, so every session goes where it's needed. PRACTICE EVERY DAY - Short, focused sessions that fit into any day - Streaks, reminders and a Habit Tracker that shows every session at a glance - Awards and Personal Bests to mark your progress LEARN MNEMONICA CARD BY CARD A guided PAO course teaches each card with a vivid Person, Action and Object, then tests you both ways: card to position and position to card. A step-by-step plan takes you through all 52, followed by spaced reviews so the stack stays solid. The first 5 cards are free. Pro unlocks the full course. WAYS TO TRAIN CORE RECALL - Recall Quiz: card to position, position to card, next and previous card STACK FLUENCY - Matchup and 4 of a Kind: speed and accuracy against the clock - Stack Segments: master the deck in small groups, then expand - Grid Rebuild: put the full deck back in stack order in a grid - Fan Rebuild: put the full deck back in stack order in a card fan - Stack Trail (Pro): trace runs of cards in stack order PRACTICAL STACK WORK - ACAAN: find any card at any number - Improv (Pro): realistic cut, count and spell scenarios SEE WHAT TO WORK ON A 52-card map shows your strong and weak cards. Track accuracy, recall time and progress, and let Focus Cards bring back the cards that need more work. IPHONE, IPAD AND APPLE WATCH Train on iPhone, use the full-screen layout on iPad, and run quick recall drills on Apple Watch. Your Watch results sync with iPhone. FREE - Mnemonica practice in every mode except Improv - The first 5 cards of the PAO course - Streaks, Habit Tracker, Awards, Personal Bests and stats PRO: ONE-TIME UNLOCK - The full Mnemonica PAO course and learning plan - More stacks: Aronson, Redford, Particle System, Memorandum, Nikola Card System and Joyal - Build and train your own custom stack - Improv mode - Adaptive Focus Cards that prioritize your weakest cards - Notes and photos for each card - iCloud sync, backup and restore - Future Pro features No subscription. No ads. One purchase. Train daily. Build fluency. Know your stack.
decipher.media
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Decipher is an AI-powered tool for analysing media content. It assesses the journalistic quality and the persuasive potential of texts, web articles, YouTube videos and podcasts. 16 CRITERIA. TWO GRADES. The tool systematically examines the content you paste against eight recognised journalistic principles (from the German Press Code / UK Editors' Code of Practice) and eight dimensions for detecting persuasive techniques. The result is reasoned, evidence-based pointers across 16 criteria, distilled into two grades on a scale of 1 to 6 — a basis for forming your own view and for discussion. The methodology is fully transparent at https://decipher.media/methodology. ONE METHOD. SIX INPUTS. What you can analyse: • Text you paste • Articles by link • YouTube videos (incl. optional transcription) • Podcasts (incl. optional transcription) • Photos & documents (text is extracted) MORE DEPTH, WHEN YOU NEED IT Where the first assessment isn't enough, three optional deep-dive modules are available: a fact check that verifies each checkable claim individually against external sources; a source check that opens every linked source and compares it against the article's statements; and video source detection that captures logos, quotes and documents shown in the video with timestamps and finds the original sources. OUR MISSION "Critical media consumption shouldn't be a privilege. Decipher puts a tool in people's hands to systematically examine the quality of media content — and with it, the influence on their own thinking. We don't provide an opinion; we provide the basis for forming one." DISCLAIMER Decipher can make mistakes. Its analysis results are for informational purposes and do not constitute legal or journalistic expert opinions. If you spot an error, please help us with a quick note. The final assessment of media content is yours to make.
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Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Stack Trainer | decipher.media |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (8 ratings) — better | — |
| Positive reviews | 71.4% of reviews | — |
| Number of ratings | 8 — better | — |
| Update frequency | Every 5 days — better | Monthly |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | — |
| Devices | iPhone, iPad, Apple Watch — better | iPhone, iPad |
| Requires iOS | 17.6 | 16.4 — better |
| Further details — not scored | ||
| Size | 124 MB | 53 MB |
| Age rating | 4+ | 4+ |
| Developer | Wayne Borcher | GPMK IdeenWerk GmbH |
In-app purchases
Stack Trainer
- Stack Trainer Pro$19.99
decipher.media
No in-app purchases
Questions
Is Stack Trainer free?
Is decipher.media free?
Do Stack Trainer or decipher.media have ads?
Which is updated more often, Stack Trainer or decipher.media?
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