RxMarbles vs iJun
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.
iJun
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Хотите улучшить свои навыки программирования на Swift и подготовиться к следующему собеседованию на позицию iOS Junior Developer? Вы нашли что искали! С нашей обширной коллекцией вопросов и ответов по Swift вы сможете усовершенствовать свои знания в области разработки и быть в курсе последних обновлений Swift. Независимо от того, новичок вы или опытный разработчик, в нашем приложении каждый найдет что-то для себя. Загрузите сейчас и поднимите свои навыки программирования на Swift на новый уровень!
Screenshots
Verdict
The clearest difference is price: RxMarbles at Free against iJun's $1.99. RxMarbles also leads on iOS requirement (9.2 vs 14.0). On update cadence, 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
RxMarbles is free to download; iJun costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
RxMarbles ships an update every 4 months, iJun every 3 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.
| Parameter | RxMarbles | iJun |
|---|---|---|
| Price | Free — better | $1.99 |
| Rating | 4.9 (16 ratings) — better | — |
| Positive reviews | 86.2% of reviews | — |
| Number of ratings | 16 — better | — |
| Update frequency | Every 4 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.2 — better | 14.0 |
| Further details — not scored | ||
| Size | 21 MB | 15 MB |
| Age rating | 4+ | 17+ |
| Developer | AnjLab | Aleksey Krzhivitskiy |
In-app purchases
RxMarbles
No in-app purchases
iJun
No in-app purchases
