Abacus Exercise vs RNJ Academy
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Abacus Exercise
Practice abacus calculations with a customizable digital tool. Adjust bead colors, sounds, and layout for a personalized learning experience. Challenge yourself with addition, subtraction, multiplication, and division exercises.
- Customizable abacus layout
- Adjustable bead size and position
- Up to 15-digit support
- Customizable bead colors and sounds
- Addition, subtraction, multiplication, division practice
- Level-based challenges
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This app focuses on the ease of use of the abacus on the app, and aims to realize smooth and comfortable operability. In addition to being able to use the abacus widely on the horizontal screen, the size and position can be freely customized according to the device. The number of digits can be used up to 15 digits, and the color and sound of the beads can also be set. You can challenge the addition and subtraction, multiplication, division questions according to your level.
RNJ Academy
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Get Personalized Learning Outcomes for everyone. An in-depth performance analysis, where you can know your strong and weak points, your all India rank, your state rank etc. You will also get a virtual tutor who is completely dedicated to bringing out the best in you. It will prioritize your concepts, chapters, topics, and questions through machine learning. Get this innovative learning experience only on Rnjacademy!!
Screenshots
Verdict
The clearest difference is in-app purchases: Abacus Exercise at none against RNJ Academy's 10. Abacus Exercise also leads on iOS requirement (11.0 vs 15.5). RNJ Academy's advantage is ads (none vs shown). On price 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. RNJ Academy sells 10 one-off in-app purchases. Abacus Exercise asks for nothing beyond the download.
| Parameter | Abacus Exercise | RNJ Academy |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (60 ratings) — better | — |
| Positive reviews | 46.2% of reviews | — |
| Number of ratings | 60 — better | — |
| Update frequency | Every 3 weeks | — |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 15.5 |
| Further details — not scored | ||
| Size | 90 MB | 146 MB |
| Age rating | 4+ | 4+ |
| Developer | Hirokazu Komatsu | Online Learning |
In-app purchases
Abacus Exercise
No in-app purchases
RNJ Academy
- Package - AL$29.99
- Package - AT$34.99
- Package - BB$39.99
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- Package - AY$39.99
- Package - BC$39.99
- Package - AW$39.99
- Package - AX$39.99
- Package - BG$49.99
- Package - BF$49.99
- Package - BH$49.99
Questions
Is Abacus Exercise free?
Is RNJ Academy free?
Do Abacus Exercise or RNJ Academy have ads?
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