Comparison

Monoxer vs SortCal

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Automatic question generation
  • Customizable learning books
  • Memory status tracking
  • Adaptive difficulty levels
  • Multiple question formats
  • Learning habit analysis
Features
Read full description

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/

About

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.

Highlights
  • Previous calculations history
  • Digit deletion button
  • Note taking functionality
  • Flashcard study mode
Features
Read full description

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

Monoxer4 screens
SortCal3 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

Monoxer ships an update weekly, SortCal every 5 months. The most recent releases landed on September 20, 2026 and June 5, 2026 respectively.

Scorecard5 real differences · 5 level
Monoxer versus SortCal: the parameters behind the verdict, then further details
ParameterMonoxerSortCal
PriceFreeFree
Rating4.7 (151 ratings)5.0 (2 ratings) — better
Positive reviews16.0% of reviews100.0% of reviews — better
Number of ratings151 — better2
Update frequencyWeekly — betterEvery 5 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.0 — better17.5
Further details — not scored
Size91 MB3 MB
Age rating4+4+
Developermonoxer, IncJaekeun Sung

Customer experience

Monoxer

All ratings151 ratings
Positive89.4%
Neutral4.6%
Negative6.0%
Written reviews25 reviews
Positive16.0%
Neutral4.0%
Negative80.0%

SortCal

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Monoxer

No in-app purchases

None

SortCal

No in-app purchases

Questions

Is Monoxer free?
Monoxer is free to download, with no in-app purchases.
Is SortCal free?
SortCal is free to download, with no in-app purchases.
Which has better reviews, Monoxer or SortCal?
SortCal is rated higher. Monoxer averages 4.7 out of 5 from 151 ratings, while SortCal averages 5.0 from 2 ratings.
Do Monoxer or SortCal have ads?
Neither Monoxer nor SortCal shows ads.
Which is updated more often, Monoxer or SortCal?
Monoxer ships an update weekly, and SortCal every 5 months. Most recently, Monoxer was updated on September 20, 2026 and SortCal on June 5, 2026.

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