Abacus Trainer vs LayerFlow
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Abacus Trainer
This app generates customized abacus math exercises for addition and subtraction. It offers practice and challenge modes to improve accuracy and speed, with detailed reports to track progress. Users can also export quizzes for offline practice.
- Customizable addition and subtraction exercises
- Practice and challenge modes
- Performance tracking and reports
- Offline exercise export (PDF)
- Randomized question generation
- Print and email quiz options
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Abacus Trainer is a question generator made in accord with the abacus skills acquired in addition and subtraction. It provides a whole range of options that can be flexibly selected to fit the drilling needs. The immense pool and combination of questions enhance the learning interest. Exercises can be focused on each four categories of addition and subtraction. Abacus training ranges from knowledge of beads- number translation, memorization, addition, subtraction, and mixed addition and subtraction for even a mixture of beads and numeric questions are included. Two modes are designed to fit different learning needs. Practice mode supports endless number of questions with no time limit, with the purpose of accuracy. Challenge mode requires answers to all the questions within the specific time limit, encouraging to boost speed as well as accuracy. No matter practice or challenge modes, the performance, score and every detail will be recorded in report, which is useful for learning progress monitoring. The report records assist you to find out the strength and weakness, a customized approach in abacus training can be derived as a result. Apart from doing the exercises directly on iPhone/iPad in a timed way, export both the quiz paper and the answer paper in PDF format to aid offline exercises. All questions are generated randomly to ensure no quiz paper will be identical. Print and email functions are also provided for your convenience. Interested in Abacus Tutorials? Please visit Mental Abacus Series at https://apps.apple.com/app/mental-abacus/id489127101
LayerFlow
This app visually explains network models like OSI and TCP/IP. It's designed for learners and professionals to understand network functions and data flow interactively.
- Visualizes OSI model
- Visualizes TCP/IP model
- Interactive exploration of layers
- Explains layer functions
- Demonstrates data movement
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LayerFlow brings the complex world of network layers to your fingertips. Designed for students, IT professionals, and curious minds, LayerFlow visualises the OSI and TCP/IP models in a clear and interactive way. Explore each layer, understand their functions, and see how data moves across networks.
Screenshots
Verdict
The clearest difference is price: LayerFlow at Free against Abacus Trainer's $4.99. LayerFlow also leads on rating (5.0 vs 4.3) and update cadence (every 3 weeks vs every 18 months). Abacus Trainer's advantage is ratings volume (12 vs 1) and device support (4 vs 1). On ads and in-app purchases 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
LayerFlow is free to download; Abacus Trainer costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.
LayerFlow holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: Abacus Trainer has 12 ratings behind it against 1, so its average is the more settled of the two.
Abacus Trainer ships an update every 18 months, LayerFlow every 3 weeks. The most recent releases landed on September 28, 2026 and October 1, 2026 respectively.
| Parameter | Abacus Trainer | LayerFlow |
|---|---|---|
| Price | $4.99 | Free — better |
| Rating | 4.3 (12 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 12 — better | 1 |
| Update frequency | Every 18 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone |
| Requires iOS | 15.0 — better | 18.2 |
| Further details — not scored | ||
| Size | 8 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Hamster Force Multimedia Ltd. | Manuel Schaer |
In-app purchases
Abacus Trainer
No in-app purchases
LayerFlow
No in-app purchases
Questions
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Is LayerFlow free?
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