Comparison

Smart Abacus vs Three Sided Flashcards

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

Head to head
About

Smart Abacus

Master mental math using the Japanese Soroban method with interactive practice and structured lessons. Improve speed, focus, and accuracy through gamified milestones and progress tracking.

Highlights
  • Digital Soroban with realistic bead movement
  • Step-by-step learning paths
  • Flash Tests for speed and accuracy
  • Voice dictation for training
  • Progress tracking and insights
  • Gamified milestones and achievements
Features
Read full description

Smart Abacus helps learners build real mental-math skill with the Japanese Soroban method through interactive practice and structured progression.What you can do: • Practice on a responsive digital Soroban with realistic bead movement • Learn step by step with Foundation, Friends of 5, and Friends of 10 paths • Run Flash Tests to improve speed, focus, and accuracy • Use voice dictation (Arabic/English) for classroom-style training • Track progress with XP, streaks, history logs, and performance insights • Unlock achievements and stay motivated with gamified milestones • Switch between Arabic and English with full RTL supportDesigned for students, parents, teachers, and anyone who wants stronger arithmetic and concentration.Premium Smart Abacus includes premium features for advanced training modes and expanded practice limits. When promotional free-access windows are active, premium content may be temporarily available to all users.

About

Three Sided Flashcards

Features
Read full description

Three Sided Flashcards helps you study complex concepts that cannot be captured effectively with traditional two-sided flashcards. Create flashcards with three connected sides to learn information that has more than just a question and an answer: No matter if you want to study scientific, medical, or legal concepts with multiple elements to remember, or Chinese characters together with their reading and meaning - Three Sided got you covered. Choose exactly what goes on each side and create flashcards that match the structure of what you are learning. Import flashcards from Excel or CSV files to create large card sets quickly and easily. Designed for focused, flexible study without distractions or unnecessary features, Three Sided Flashcards makes it easier to understand and remember complex information.

Screenshots

Smart Abacus4 screens
Three Sided Flashcards4 screens

Verdict

The call

The clearest difference is iOS requirement: Smart Abacus at 16.4 against Three Sided Flashcards's 26.1. 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.

Scorecard1 real difference · 8 level
Smart Abacus versus Three Sided Flashcards: the parameters behind the verdict, then further details
ParameterSmart AbacusThree Sided Flashcards
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 11 days—
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad — betteriPhone
Requires iOS16.4 — better26.1
Further details — not scored
Size50 MB4 MB
Age rating4+9+
DeveloperZerwOne Network, LLCSven Langsdorf

In-app purchases

None

Smart Abacus

No in-app purchases

None

Three Sided Flashcards

No in-app purchases

Questions

Is Smart Abacus free?
Smart Abacus is free to download, with no in-app purchases.
Is Three Sided Flashcards free?
Three Sided Flashcards is free to download, with no in-app purchases.
Do Smart Abacus or Three Sided Flashcards have ads?
Neither Smart Abacus nor Three Sided Flashcards shows ads.

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