Trach vs Abacus Simulator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Trach
Master rapid mental math with this app, offering step-by-step tutorials and practice exercises for complex calculations. Learn and practice the Trachtenberg method to sharpen your number sense and multiply faster.
- Trachtenberg method tutorials
- Practice exercises
- Progress tracking
- Mental math techniques
- Rapid multiplication
- Number sense development
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Trach is the ultimate app for learning and practicing the Trachtenberg method—a system of mental math techniques that make complex calculations quick and intuitive. With step-by-step tutorials and practice exercises, you’ll develop a deep understanding of rapid multiplication, all while sharpening your number sense. Why Trach? - Learn the Trachtenberg method at your own pace - Practice with problems of varying difficulty - Track your progress and improve over time - No ads, no distractions—just pure learning Master calculations like 172413 × 11 in seconds. Whether you're a student, a math enthusiast, or just curious about mental math tricks, Trach makes learning effortless. Download Trach today and start multiplying faster than ever.
Abacus Simulator
Enhance your mental math abilities with interactive abacus exercises. This app offers guided lessons and daily drills to improve calculation speed, focus, and accuracy. Customize your abacus for a fun and engaging learning experience.
- Interactive abacus exercises
- Guided step-by-step lessons
- Daily skill-sharpening exercises
- Focus, speed, and accuracy improvement
- Customizable abacus
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Count faster with Abacus! Build your mental math skills with our interactive exercises. From basic to advanced calculations, we got you covered! It is easy, fun, and free! Why Abacus? Guided lessons - step-by-step tutorials on every level. Sharpen skills - improve focus, speed, and accuracy through our daily exercises. Fun - customize your abacus and have fun with it!
Screenshots
Verdict
The clearest difference is monetization model: Trach at free against Abacus Simulator's free with in-app purchases. Trach also leads on review sentiment (93% vs 72%). Abacus Simulator's advantage is ratings volume (41 vs 13) and iOS requirement (13.0 vs 16.0). On price, rating, update cadence and ads 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. Trach sells 1 one-off in-app purchase and Abacus Simulator sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.7 for Trach against 4.7 for Abacus Simulator. Both are backed by a comparable volume of ratings — 13 and 41 respectively. Written reviews are what separate them: 93% of Trach's written reviews are positive against 72% of Abacus Simulator's.
Trach ships an update every 2 weeks, Abacus Simulator every 3 weeks. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.
| Parameter | Trach | Abacus Simulator |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (13 ratings) — better | 4.7 (41 ratings) |
| Positive reviews | 93.3% of reviews — better | 72.4% of reviews |
| Number of ratings | 13 | 41 — better |
| Update frequency | Every 2 weeks — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 6 MB | 41 MB |
| Age rating | 4+ | 4+ |
| Developer | Giorgio Network, LLC | Nicholas Ang |
Customer experience
Trach
Abacus Simulator
In-app purchases
Trach
- Unlock All Multiply Tutorials$4.99
Abacus Simulator
- Cloud Beads$1.99
- Coconut Beads$1.99
- Lemon Beads$1.99
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- Mushroom Beads$1.99
- Penguin Beads$1.99
- Flower Beads$1.99
- Orange Beads$1.99
- Snail Beads$1.99
- Snowman Beads$1.99
- Watermelon Beads$1.99
