RAeS Events vs ∫dx
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RAeS Events
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The RAeS Events app will allow you to boost your experience at the event. -View the event programme online and offline, not dependant on Wi-Fi or 3G connections -Speaker biography and presentation times -Personalized Agenda, schedule your favourite presentation. -Multiple programme filters by day, session type and happening now. -Schedule the presentations you want to attend -Real time changes, if a scheduled presentation has been changed, your personalised agenda will notify you -Social feed
∫dx
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∫ dx: A-Level Maths Revision Getting good at A-Level Maths takes one thing: deliberate practice. Not more notes. Not another YouTube playlist. Questions, done consistently, until the methods become second nature. dx is built for exactly that. Smart revision that adapts to you dx tracks every question you rate as "needs work" or "partially got it" and brings it back at the right time - spacing reviews so you're drilling your weak spots, not wasting time on what you already know. AI hints that teach, not spoil Stuck on a question? Get a progressive hint that nudges you in the right direction without giving away the answer. Learn to think through problems, not just copy solutions. Full worked solutions Tap to reveal a step-by-step mark-scheme solution for every question. Not generic ChatGPT answers - structured worked examples built for A-Level Maths. What's inside: • Thousands of exam-style questions across Pure, Statistics, and Mechanics • Edexcel and OCR question banks • LaTeX rendering so every equation and diagram is crisp and readable • Daily 10 - a focused session mixing new questions with spaced review • Custom Practice - drill any topic, any category, any time • Progress tracking so you always know where you stand Free to start. Premium to go further. The core app is free. Premium unlocks unlimited AI hints, full worked solutions, and unlimited custom practice sessions. A-Level Maths rewards consistency. Use dx to build the habit, close the gaps, and hit the grade you're aiming for. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: RAeS Events at none against ∫dx's 2. RAeS Events also leads on iOS requirement (10.0 vs 15.1). On price, update cadence, 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. ∫dx sells 2 in-app purchases, starting at $4.99 per month. RAeS Events asks for nothing beyond the download.
RAeS Events ships an update every 3 weeks, ∫dx monthly. The most recent releases landed on October 25, 2026 and October 31, 2026 respectively.
| Parameter | RAeS Events | ∫dx |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 weeks — better | Monthly |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 10.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 26 MB | 42 MB |
| Age rating | 17+ | 4+ |
| Developer | Royal Aeronautical Society | PRANEEL AGRAWAL |
In-app purchases
RAeS Events
No in-app purchases
∫dx
- dx Premium Monthly$4.991 Month
- dx Premium Annual$12.991 Year









