Comparison

Memokeys vs Dynamic Mathematics

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

Head to head
About

Memokeys

Features
Read full description

The Memokeys app provides an easy and fun way to memorise connections between words: a great help in learning foreign languages and unfamiliar terms! You enter a couple of words or expressions - keys. A smart algorithm that uses a human memory model will quiz you to remember the connections between words from the first to the second or vice versa. The successes and mistakes of your actions are analyzed and remembered. The algorithm adapts to select the most essential pair of words for you at any time. For the best performance of the algorithm, it is desirable to enter a couple of dozen pairs of words over several days. Each key pair has a unique background color scheme associated with the text code. You can add an image from your photo collection to the key pair, or take an instant camera photo. FAQ How to adjust the probability balance of the quiz from the first word to the second? - The smart algorithm manages the direction on its own, but you can manually adjust the desired probability in the Settings page. The new settings take effect gradually. Is it case-sensitive, as well as spaces? - No, you don't have to worry about letter case, leading and trailing spaces. How to edit or delete a pair of memo word keys? - After passing the quiz, you can click on the Edit button. There will also be the Delete option. Did you know? The app's background gradient is a clock in 24 hour time format.

About

Dynamic Mathematics

This app offers adaptive math practice with dynamically generated problems. It scores your answers against your mastery and unlocks new topics as you improve, making learning engaging for all ages.

Highlights
  • Dynamically generated math problems
  • Scored against user mastery
  • Unlocks new topics upon improvement
  • Adaptive learning progression
  • Focused math practice
Features
Read full description

Dynamic Mathematics is a focused math practice app for students, adult learners, and anyone who wants to stay sharp. Problems are generated live, scored against your mastery, and unlock new topics as you improve. WHAT IT DOES Work through math one problem at a time. Each question is generated from a template with randomized numbers. When you consistently answer a topic correctly, advanced topics that build on it become available.

Screenshots

Memokeys4 screens
Dynamic Mathematics4 screens

Verdict

The call

The clearest difference is in-app purchases: Dynamic Mathematics at none against Memokeys's 1. Dynamic Mathematics also leads on update cadence (weekly vs every 3 months). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Memokeys sells 1 one-off in-app purchase. Dynamic Mathematics asks for nothing beyond the download.

UpkeepUpdate frequency

Memokeys ships an update every 3 months, Dynamic Mathematics weekly. Both last shipped on October 3, 2026.

Scorecard2 real differences · 7 level
Memokeys versus Dynamic Mathematics: the parameters behind the verdict, then further details
ParameterMemokeysDynamic Mathematics
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 3 monthsWeekly — better
AdsNoNo
In-app purchasesYesNo — better
Monetization—Free
DevicesiPhone, iPadiPhone, iPod
Requires iOS16.015.1 — better
Further details — not scored
Size5 MB53 MB
Age rating4+4+
DeveloperSerge KotovKevin McDonald

In-app purchases

1 purchases

Memokeys

One-time1
  • Unlimited count of keys$1.99
None

Dynamic Mathematics

No in-app purchases

Questions

Is Memokeys free?
Memokeys is free to download, with in-app purchases available.
Is Dynamic Mathematics free?
Dynamic Mathematics is free to download, with no in-app purchases.
Do Memokeys or Dynamic Mathematics have ads?
Neither Memokeys nor Dynamic Mathematics shows ads.
Which is updated more often, Memokeys or Dynamic Mathematics?
Memokeys ships an update every 3 months, and Dynamic Mathematics weekly. Most recently, Memokeys was updated on October 3, 2026 and Dynamic Mathematics on October 3, 2026.

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