Save My Exams is built around revision notes and exam questions written by teachers and examiners, organised by exam board and topic. Past papers and official mark schemes are free to download, and a free account also gives unlimited flashcards, a weekly allowance of revision notes and access to the Study Planner. It covers AQA, Edexcel, OCR, WJEC, Eduqas and CCEA.

Atom Home is built around full-length papers rather than topic notes. You set your subjects, exam boards and exam dates, and it builds a revision plan, serves targeted practice, and marks whole papers against genuine exam-board mark schemes.

This is the clearest difference, and it sits on the Save My Exams price boundary. Their Essential plan includes exam questions with self-marking — you write the answer, then compare it to the worked solution yourself. Instant feedback on your answers, and the Strengths & Weaknesses tracker that depends on it, are Premium features.

Atom Home marks on every plan. There is no tier at which you are checking your own six-mark answer against a model and guessing how an examiner would have scored it.

Save My Exams works at the level of the topic: a set of notes, then questions on that topic, then a mock exam when you want one. That is a good way to learn content and spot gaps, and the Study Planner is free, which is more than most charge.

Atom Home works at the level of the paper. Full-length predicted papers, sat end to end, with the timing and stamina that involves, then a grade at the end. If you know your content but keep losing marks under exam conditions, that is the gap the whole-paper approach is built to close.

Save My Exams is considerably cheaper, and the annual commitment matters a lot. Essential is £15 a month paid monthly, or £5 a month billed at £60 a year. Premium is £30 a month paid monthly, or £10 a month billed at £120 a year. Only Premium comes with a 7-day free trial; Essential is charged at sign-up. There is also a genuinely useful free tier — past papers and mark schemes, unlimited flashcards and the Study Planner cost nothing.

Atom Home plans start at £39.99 a month for English, maths and science. Exam Prep is £59.99 a month, and Exam Prep Plus, including unlimited mock tests with instant marking, is £69.99 a month. Annual plans save 20%, bringing Exam Prep Plus to £55.99 a month, billed at £671.90 a year.

Essential gives you revision notes, exam questions with self-marking, mock exams and Smart Chat. Premium adds downloadable notes and questions, the Strengths & Weaknesses tracker, instant feedback on your answers, a test builder and guided practice. Save My Exams says its Smart Mark tool marks answers against exam-board mark schemes where it is available for your course.

Every Atom Home plan includes unlimited practice questions, AI marking, an AI tutor and a performance dashboard with predicted grades, topic strengths and gaps, and progress over time. Full-length mock tests are the dividing line between plans: included on Exam Prep Plus, not on the other two.

Save My Exams points you at weak areas through its Strengths & Weaknesses tracker and target tests, with the fuller version on Premium. The Study Planner, free on any account, helps you lay out when to revise what.

Atom Home builds its plan backwards from your exam dates and drives what you see next from where your marked papers show you are losing marks, rather than from which topics you have told it you find hard.

Save My Exams has Smart Chat on Essential and up, plus Revision Note Chat and Exam Question Chat, so there is help at the point of confusion on the paid tiers.

Atom Home includes an AI tutor on every plan, alongside annotations, flashcards and worked explanations.

Save My Exams gives free unlimited downloads of real past papers with official mark schemes, which is genuinely valuable and costs nothing. Their own full-length mock exams come with Essential, with answers provided to check against.

Atom Home's are full-length predicted papers built on real past-paper formats for your board, marked automatically against genuine exam-board mark schemes and reviewed by subject specialists and former examiners. On Exam Prep Plus they are unlimited, so you can sit a fresh paper as often as you like without repeating questions.

Save My Exams shows strengths and weaknesses by topic, with the fuller view on Premium, and Smart Mark shows where marks were lost on questions it covers. Their site does not describe a predicted grade.

Atom Home reports a predicted grade for each subject mapped to real grade boundaries, with topic-by-topic strengths and gaps underneath and progress plotted over time.

Knowing which topics are weak is genuinely useful, and Save My Exams does it well. What it stops short of is the number every student actually wants, which is what grade they would get if the exam were tomorrow.

Atom Home measures marks against a real mark scheme and reports them as a grade against actual grade boundaries. If the predicted grade moves, the revision is working.

Save My Exams sells individual subscriptions to students, parents and teachers, but its site does not describe a separate parent dashboard or progress reporting.

Atom Home's GCSE experience is written for the student, with the performance dashboard, predicted grades and topic breakdown as a single shared view. For a parent asking whether revision is working, a predicted grade against real grade boundaries answers it quickly.

Price, breadth and the free tier. At £5 a month on an annual plan it is a fraction of the cost, the free past papers and mark schemes are worth having whatever else you use, and the subject and board coverage is wider — WJEC, Eduqas and CCEA are all supported, and Atom Home does not cover them.

If budget is the binding constraint, Save My Exams is very hard to argue against, and nothing here should suggest otherwise.

If you are still learning content and want clear notes, topic questions and a planner, Save My Exams covers that cheaply, and its free tier alone will carry you a long way.

Atom Home is for the stage after: when the content is largely in and the problem is converting it into marks. One subscription gives you a revision plan built around your subjects, exam boards and exam dates, full-length predicted papers marked on every plan against genuine exam-board mark schemes, examiner-style feedback on where marks were lost, and a predicted grade that updates as you improve, across AQA, Edexcel, OCR and iGCSE.