R2R vs UCAT
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.
UCAT
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University Clinical Aptitude Test (UCAT) prep. Prepare for the UCAT with focused practice across key aptitude skills. This app provides preparation for the aptitude tests you will have to undertake for entry into certain university course. This app helps you build speed and accuracy through short, timed tests covering Numeracy, Verbal Reasoning, and Abstract Reasoning. Each exercise is designed to mirror the pressure of real aptitude-style questions, helping you practise mental maths, pattern recognition, data interpretation, and logical judgement. Features: • Timed UCAT-style practice tests • Numeracy drills including arithmetic, percentages, ratios, number operations, and data interpretation • Verbal Reasoning practice with true, false, and can't tell questions • Abstract Reasoning pattern recognition tasks • Instant scoring after each test • Review incorrect answers with screenshots and correct solutions • Simple, distraction-free interface built for repeat practice Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is update cadence: UCAT at every 2 weeks against R2R's every 3 months. R2R's advantage is iOS requirement (10.3 vs 15.6). 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. R2R sells 1 one-off in-app purchase and UCAT sells 1 in-app purchase, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.
R2R ships an update every 3 months, UCAT every 2 weeks. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.
| Parameter | R2R | UCAT |
|---|---|---|
| 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 2 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 10.3 — better | 15.6 |
| Further details — not scored | ||
| Size | 151 MB | 14 MB |
| Age rating | 4+ | 4+ |
| Developer | James Styles | George Lee |
In-app purchases
R2R
- Extra Questions Pack$0.99
UCAT
- Weekly subscription$2.997 Days









