MyBarcode vs Müller
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MyBarcode
Easily add and retrieve memos for your barcodes. Scan items like books or stationery to attach titles, details, URLs, and images. Re-scanning displays your saved information.
- Scan barcodes
- Add titles, details, URLs
- Attach images
- Retrieve saved memo data
- Supports books, CDs, stationery
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"MyBarcode" can add memo to barcodes attached to books, CDs, stationery etc. Please start the application and scan the barcode. Title, details, URL, images can be registered. Once scanned again, the registered memo data is displayed. 【Note】 1. QR code is not supported. 2. You can not register different memos in the same barcode. 3. It is not displayed when the image is deleted from your phone. 4. Up to 300 barcodes can be registered.
Müller
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Here’s the English translation: This app is a convenient tool for easily experimenting with the Müller-Lyer illusion. No special equipment or paper is needed—just your smartphone to experience the fascinating world of optical illusions. Key Features: Super easy to use! Perfect for classroom lessons and scientific experiments. Record illusion experiments in sets of 10 trials Ideal for group projects and individual research. Scientific data recording Simply tap where the horizontal lines of outward- and inward-facing figures "appear equal"! The recorded illusion magnitude (in pixels) is helpful for comparisons in subsequent experiments. Randomized display of ascending and descending series The order of ascending and descending series is randomized, ensuring unbiased data collection. Clear display of initial conditions The app displays the starting position and other conditions at the beginning of each trial, making it convenient for analysis and retrying experiments. Data saved securely on your device All experiment results are safely stored on your smartphone. Data management is simple, and retrying is effortless! Learn while having fun! Explore the mysteries of optical illusions while improving observation and analytical skills. This app is enjoyable for students, educators, psychology enthusiasts, and anyone curious about the science of perception. Download now and take your first step into the world of science!
Screenshots
Verdict
The clearest difference is iOS requirement: Müller at 12.0 against MyBarcode's 15.0. On price, update cadence, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
MyBarcode ships an update every 6 months, Müller every 9 months. The most recent releases landed on October 7, 2026 and October 10, 2026 respectively.
| Parameter | MyBarcode | Müller |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (1 ratings) — better | — |
| Positive reviews | 66.7% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 6 months — better | Every 9 months |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 7 MB | 30 MB |
| Age rating | 4+ | 4+ |
| Developer | Tadashi Kinoshita | SOCIA LABO, K.K. |
In-app purchases
MyBarcode
No in-app purchases
Müller
No in-app purchases









