Comparison

Summatic vs Actr

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Summatic

This app offers interactive math and STEM learning for students, featuring step-by-step explanations, unlimited practice questions, and dynamic graphs. It covers topics from school exams to university courses, designed by Cambridge academics.

Highlights
  • Unlimited practice questions
  • Step-by-step learning with feedback
  • Interactive dynamic graphs
  • Clear topic categorization and search
  • Tailored for A-level, IB, GCSE, and university courses
Features
Read full description

Summatic is an app for STEM students, designed and developed by Cambridge academics. Clear explanations and interactive examples take you on step-by-step journeys through exam topics, so you can master difficult concepts easily. Our resources are tailored to school maths (A-level, IB, (I)GCSE with full exam board coverage), and university courses including economics, physical sciences, biosciences, and business courses, to help you learn exactly what you need to succeed in your course. Key features: Unlimited Practice Questions: Keep busy with authentic questions in a wide range of complex formats for advanced STEM subjects – including formulas, matrices, arguments, graphs, and more – are reliably evaluated by our technology. Step-by-Step Learning: If you get a question wrong, you can see feedback on your steps, you can try to correct your answer, you can see a full worked solution, and you can try again on a new randomized variant. Interactive Graphs: Bring complex concepts to life by dragging points to watch how graphs change. Dynamic animated graphs allow you to visualize tricky topics in statistics, geometry, and more. Easy Navigation: Topics and sub-topics are clearly categorised on the contents page. Use the search function to jump directly into a topic, and dive straight back into your work with recently viewed pages showing on the home screen. ...But don’t just take our word for it, download the app for a free 7-day trial and start practising questions now! Students: write to us and refer your school or university! And we’ll reach out to discuss integrating Summatic into your curriculum. Feedback and bug reports: If you encounter any technical issues, please use the feedback button in the app or email us at contact@summatic.co.uk for support. Always looking to improve, we are happy to listen to any feedback you may have!

About

Actr

Features
Read full description

Welcome to the future of roleplay-based training and assessment. The Actr-AI app allows you to interview AI victims of crime in a variety of real world scenarios. You will be briefed on the scenario and tasked to investigate by interviewing the victim through a familiar messaging interface. The AI roleplayer will react to your tone, interviewing technique and rapport-building, as if they were a real person, and tell you their story. Once you have completed your interview, you will receive an assessment of your performance with constructive feedback. Good luck officer!

Screenshots

Summatic3 screens
Actr4 screens

Verdict

The call

The clearest difference is in-app purchases: Actr at none against Summatic's 9. Summatic's advantage is update cadence (every 2 weeks vs monthly). On price, ads, device support and iOS requirement 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Summatic sells 9 one-off in-app purchases. Actr asks for nothing beyond the download.

UpkeepUpdate frequency

Summatic ships an update every 2 weeks, Actr monthly. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

Scorecard2 real differences · 8 level
Summatic versus Actr: the parameters behind the verdict, then further details
ParameterSummaticActr
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 2 weeks — betterMonthly
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.0 — better15.1
Further details — not scored
Size70 MB51 MB
Age rating4+4+
DeveloperSummatic LtdActr-ai Limited

In-app purchases

9 purchases

Summatic

One-time9
  • A Level Maths Edexcel$99.99
  • Economics$99.99
  • A Level Maths AQA$99.99
Show 6 more
  • A Level Maths OCR A$99.99
  • A Level Maths CCEA$99.99
  • A Level Maths OCR B$99.99
  • A Level Maths Cambridge Intl$99.99
  • A Level Maths WJEC$99.99
  • MBA Pre-Course$111.99
None

Actr

No in-app purchases

Questions

Is Summatic free?
Summatic is free to download, with in-app purchases available.
Is Actr free?
Actr is free to download, with no in-app purchases.
Do Summatic or Actr have ads?
Neither Summatic nor Actr shows ads.
Which is updated more often, Summatic or Actr?
Summatic ships an update every 2 weeks, and Actr monthly. Most recently, Summatic was updated on November 3, 2026 and Actr on November 4, 2026.

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