R2R vs SST IB Maths
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
R2R
This educational app helps students revise chemistry topics by asking targeted questions. It identifies weak areas and allows for random or topic-specific practice. An optional upgrade provides over 500 additional questions.
- Targeted chemistry questions
- Identifies weak revision topics
- Random and topic-specific practice
- Exam board tailoring
- Optional extra question packs
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Don't know what to revise? Not enough time to revise? Let Rudi Rabbit help by asking you a whole bunch of Chemistry questions and then suggesting which topics you have done least well on. Once done, you can either choose questions at random or only on specific topics. This app is aimed at those students studying for A Levels in the United Kingdom but may also be of use to those studying the International Baccalaureate and other International examinations. The free version comes with 160 questions, but if you find it useful why not upgrade by adding over 500 extra questions by purchasing the Extra Questions Pack? If you select your examination board, Rudi will even tailor the questions to your specification.
SST IB Maths
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Practice for your IB Maths with this fun, engaging, and gamified app. Earn badges as you make progress and get instant, tailored feedback for any wrong answers you give, so you can learn from your mistakes! LICENSED APPLICATION END USER LICENSE AGREEMENT https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: SST IB Maths at none against R2R's 1. SST IB Maths also leads on update cadence (every 3 weeks vs every 3 months). R2R's advantage is iOS requirement (10.3 vs 15.0). On price, ads 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. R2R sells 1 one-off in-app purchase. SST IB Maths asks for nothing beyond the download.
R2R ships an update every 3 months, SST IB Maths every 3 weeks. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.
| Parameter | R2R | SST IB Maths |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (9 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 9 — better | — |
| Update frequency | Every 3 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 10.3 — better | 15.0 |
| Further details — not scored | ||
| Size | 151 MB | 29 MB |
| Age rating | 4+ | 4+ |
| Developer | James Styles | Kikodo |
In-app purchases
R2R
- Extra Questions Pack$0.99
SST IB Maths
No in-app purchases
