Monoxer vs SortCal
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Monoxer
This app analyzes your learning habits to create personalized exercises for effective knowledge acquisition. It generates questions automatically from your custom lists and tracks your memory status, adjusting difficulty to optimize learning.
- Automatic question generation
- Customizable learning books
- Memory status tracking
- Adaptive difficulty levels
- Multiple question formats
- Learning habit analysis
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Monoxer - The exercises for your memory Monoxer is an application to acquire & absorb knowledges you want by the effective learning. Monoxer analyze your habit of memory by using your learning history, and create appropriate questions automatically to acquire knowledges. ■ Create your original books what you'd like to acquire Monoxer creates questions automatically if you make lists of knowledges. We call this list "Book". You can acquire English, Japanese, Kanji, History, something manual and more! ■ Checking your memory Monoxer show you your memory status of each books when you learn a book on Monoxer. The memory status is expressed memorized, in progress,weak points and unknown. ■ Adjusting the level of difficulty according to your memory status You can solve questions in various forms, for example, choices, input, shadowing and more. Also, Monoxer sometimes create a question you had already memorized on this application, it is based on the unique prediction for your oblivion speed. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
SortCal
This app combines calculator functionality with note-taking and flashcard study tools. It allows users to review past calculations and easily delete digits. It's designed for everyday math tasks and educational support.
- Previous calculations history
- Digit deletion button
- Note taking functionality
- Flashcard study mode
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Do the everyday math and note taking with SortCal Features 1. Shows previous calculations 2. Press the red button to delete digits 3. Note taking feature 4. Study with Flashcards
Screenshots
Verdict
The clearest difference is review sentiment: SortCal at 100% against Monoxer's 16%. SortCal also leads on monetization model (free vs free with in-app purchases) and rating (5.0 vs 4.7). Monoxer's advantage is update cadence (weekly vs every 5 months) and ratings volume (151 vs 2). On price, ads, in-app purchases and device support 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.
SortCal holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Monoxer has 151 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 16% of Monoxer's written reviews are positive against 100% of SortCal's.
Monoxer ships an update weekly, SortCal every 5 months. The most recent releases landed on September 20, 2026 and June 5, 2026 respectively.
| Parameter | Monoxer | SortCal |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (151 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 16.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 151 — better | 2 |
| Update frequency | Weekly — better | Every 5 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 — better | 17.5 |
| Further details — not scored | ||
| Size | 91 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | monoxer, Inc | Jaekeun Sung |
Customer experience
Monoxer
SortCal
In-app purchases
Monoxer
No in-app purchases
SortCal
No in-app purchases
Questions
Is Monoxer free?
Is SortCal free?
Which has better reviews, Monoxer or SortCal?
Do Monoxer or SortCal have ads?
Which is updated more often, Monoxer or SortCal?
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