RxMarbles vs DiElaMathema
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RxMarbles
Visualize and understand ReactiveX observable sequences with interactive diagrams. This educational tool helps developers grasp complex asynchronous programming concepts by illustrating event-based data streams and composition operators.
- Interactive observable diagrams
- Visualization of event streams
- Demonstration of composition operators
- Educational tool for asynchronous programming
- Explains observer pattern extensions
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Interactive diagrams of Rx Observables. ReactiveX is a library for composing asynchronous and event-based programs by using observable sequences. It extends the observer pattern to support sequences of data and/or events and adds operators that allow you to compose sequences together declaratively while abstracting away concerns about things like low-level threading, synchronization, thread-safety, concurrent data structures, and non-blocking I/O.
DiElaMathema
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DiEla Mathema - Fun Math Practice for all ages! Transform math learning into an exciting adventure! DiEla Mathema makes practicing math fun and engaging for children of all ages and skill levels. FEATURES: All Grade Levels - From Kindergarten to Grade 5 Four Operations - Addition, Subtraction, Multiplication, Division Instant Feedback - Learn from mistakes immediately Progress Tracking - Watch your score and level grow Streak System - Bonus points for consecutive correct answers Customizable Settings - Choose difficulty and operations iPad Optimized - Large, easy-to-read text and buttons Friendly Design - Colorful, intuitive interface PERFECT FOR: • Homework practice • Building math confidence • Improving mental math speed • Learning at your own pace • Fun educational screen time HOW IT WORKS: Solve math problems by selecting the correct answer from multiple choices. Correct answers turn green and increase your score and streak. Wrong answers turn red with encouragement to try again. Every 5 correct answers in a row levels you up! ADJUSTABLE DIFFICULTY: Choose from 6 grade levels with number ranges from 1-10 (Kindergarten) up to 1-1000 (Grade 5). Enable or disable specific math operations to focus on what matters most. Make math practice something you actually enjoy! Download DiEla Mathema today.
Screenshots
Verdict
The clearest difference is update cadence: DiElaMathema at every 2 days against RxMarbles's every 4 months. RxMarbles's advantage is iOS requirement (9.2 vs 15.0). 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
RxMarbles ships an update every 4 months, DiElaMathema every 2 days. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.
| Parameter | RxMarbles | DiElaMathema |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (16 ratings) — better | — |
| Positive reviews | 86.2% of reviews | — |
| Number of ratings | 16 — better | — |
| Update frequency | Every 4 months | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.2 — better | 15.0 |
| Further details — not scored | ||
| Size | 21 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | AnjLab | Ramill Ibragimov |
In-app purchases
RxMarbles
No in-app purchases
DiElaMathema
No in-app purchases
