LUMEN Impra vs MemDatStack
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
LUMEN Impra
This app enhances magic performances by capturing real-time strokes and recognizing handwriting. It seamlessly broadcasts results to various devices, offering a polished interface for magicians to perform with confidence.
- Real-time stroke capture
- Handwriting recognition
- Broadcast to multiple devices
- Polished user interface
- Designed for professional performers
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LUMEN Impra is the all-in-one companion app for working magicians using LUMEN hardware. Capture every stroke in real time, recognize handwriting on the fly, and broadcast results to every peek device, watch, and app you trust — all from a single, polished interface. Built from the ground up for serious performers, Impra brings together everything you need to perform with confidence.
MemDatStack
This tool assists magicians in memorizing card stacks with customizable quizzes. It supports various popular stacks and question types, offering detailed feedback on incorrect answers to improve learning.
- Supports multiple popular card stacks
- Variety of quiz settings
- Customizable quiz questions
- Tracks recent quiz results
- Reviews incorrect answers
- Audio feedback option
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A highly configurable tool to help magicians trying to memorize a stack of cards. Pick from multiple commonly used stacks, indicate which cards in the stack you believe you already know, choose from a variety of quiz settings, and take quizzes to help you learn your stack. You can see your recent quiz results, and review any questions you got incorrect. Supported stacks: Mnemonica, Aragon, Aronson, Particle System, Redford, Joyal Supported questions: Card to Location, Location to Card, Card Before, Card After Quiz options: multiple choice, number of multiple choices, questions per quiz, optional time limit to answer, delay after correct/incorrect answers, audio feedback, ask more often about cards/locations you've recently gotten incorrect
Screenshots
Verdict
The clearest difference is in-app purchases: MemDatStack at none against LUMEN Impra's 1. MemDatStack also leads on update cadence (every 9 days vs every 3 weeks) and iOS requirement (18.6 vs 26.2). On price, rating, ratings volume and ads 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. LUMEN Impra sells 1 one-off in-app purchase. MemDatStack asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for LUMEN Impra against 5.0 for MemDatStack. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
LUMEN Impra ships an update every 3 weeks, MemDatStack every 9 days. The most recent releases landed on September 17, 2026 and September 21, 2026 respectively.
| Parameter | LUMEN Impra | MemDatStack |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (1 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 | 1 |
| Update frequency | Every 3 weeks | Every 9 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, Apple Watch — better | iPhone, iPad |
| Requires iOS | 26.2 | 18.6 — better |
| Further details — not scored | ||
| Size | 366 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | CFMS LLC | Circe Apps LLC |
In-app purchases
LUMEN Impra
- Pro Club$299.00
MemDatStack
No in-app purchases
Questions
Is LUMEN Impra free?
Is MemDatStack free?
Which has better reviews, LUMEN Impra or MemDatStack?
Do LUMEN Impra or MemDatStack have ads?
Which is updated more often, LUMEN Impra or MemDatStack?
Other comparisons
