Best GCSE revision apps and websites: an honest guide

When my son was doing his exams during the COVID years, school moved online overnight and I did what a lot of parents did: I started buying things. App after app, subscription after subscription, each one promising to be the answer. Some helped a little. Most got opened twice and forgotten. What I never had was a straight, honest guide to which ones were actually worth the money and which were just a slick way of charging me for a folder of notes. He's twenty-one now and doing a master's in Oslo, and my daughter is at the start of her own GCSEs — so I've since spent a lot of time working out what genuinely helps. Here's the honest version, parent to parent.

Full disclosure before we start: I build one of these tools myself — Lightbulb Learning — so weigh my words accordingly. I've tried to be fair to everything here and honest about where Lightbulb does and doesn't fit; you can judge whether I've managed it.

Platform features and access were checked in August 2026. Providers change free limits, subscriptions and subject coverage often, so confirm the current details before paying.

The one-sentence answer

Start with the free tools, because several are genuinely excellent; only pay when a tool gives your child something free ones don't — exam-style practice, marking, or board-matched questions — and don't pay merely for more notes to re-read unless they fill a genuine gap your child will use actively.

At a glance

A quick comparison — features change often, so confirm current details before paying:

• BBC Bitesize — best for explanations and recaps. Free; no paid tier. Check: subject and board coverage.
• Physics & Maths Tutor — best for past papers and topic questions. Free resources (tutoring and courses are separate). Check: your exact specification.
• Seneca — best for guided content and recall. Large free tier; Premium adds extra modes and AI questions. Check: course coverage for your subjects.
• Save My Exams — best for notes and exam practice. Limited free samples; paid adds full questions, model answers and SmartMark. Check: SmartMark availability for your subject.
• Quizlet — best for flashcards. Core flashcards free; Learn/Test and some modes limited. Check: current free study limits.
• Medly — best for AI tutoring and feedback. Daily free access; a subscription lifts the AI limits. Check: marking consistency on a question you can verify.
• CGP — best for structure and written practice. Paid books and workbooks. Check: it's specific to your child's exam board.

(Lightbulb — mine — is covered separately at the end.)

Start free — several of the best cost nothing

Before any subscription, these are worth knowing about, because for a lot of families they're enough on their own.

BBC Bitesize — free, covering a broad range of GCSE subjects with revision guides, videos, flashcards and quizzes. Much of its content can be selected by exam board (AQA, Edexcel, OCR, Eduqas), though subject and specification coverage varies. It's the sensible first stop and costs nothing.

Physics & Maths Tutor (PMT) — despite the name, it hosts past papers, mark schemes and topic-by-topic questions across many subjects, all free. For exam practice on a budget it's hard to beat, because past papers are the closest thing to the real exam there is.

Seneca (free tier) — its core courses are free and lightly gamified, with recall questions built into each section. It's a genuinely good way to work through content for the first time and keep a reluctant student moving. There's a paid Premium tier on top (more on that below), but the free version is substantial.

Save My Exams (free plan) — a free plan gives you sample revision notes and a limited number of questions, so you can see the quality before deciding. Most of the library, though, sits behind a subscription.

If money is tight, you can build a perfectly good revision setup from these alone — notes from Bitesize, practice from PMT, coverage from Seneca — without spending anything.

The paid ones — when premium is actually worth it

Here's where the honest question lives: is the subscription worth it? A useful rule is that you're usually paying for one of three things — a full note library, exam-style questions with model answers, or marking and feedback. Active retrieval, exam-style application and useful feedback generally add more value than simply receiving another set of notes; notes can still help a student understand or organise unfamiliar content, but they should normally lead into practice rather than become the whole method.

Seneca Premium and Save My Exams premium both unlock much more of their libraries. Seneca's free tier is already large (hundreds of exam-board-specific courses); Premium adds premium courses, extra learning modes, AI-marked exam questions and an AI assistant. Save My Exams' paid plan adds full notes, exam-style questions with model answers, past papers and its SmartMark AI feedback — though SmartMark is available only for supported subjects and specifications, not every course. If the free tier has genuinely run out of road for your child's subjects, and the paid version adds exam-style practice and marking rather than just more notes, it can be worth it. If it mostly adds notes to read, it usually isn't.

Quizlet is still free for creating and studying ordinary flashcard sets, but some of its more structured study modes are now restricted. Learn is primarily a Quizlet Plus feature with a limited free session, and non-subscribers normally get one free Test attempt per flashcard set. Students using sets assigned through an eligible teacher-managed class may get broader free access. It remains useful for flashcards, but check the current limits before relying on it as the centre of a revision plan.

On pricing generally: I've deliberately not quoted exact monthly figures here, because they change often and a number in an article goes stale fast. Check each provider's current free tier, sample course and any trial or promotional offer before subscribing — not every platform offers a standard free trial.

The new wave: AI marking and tutor apps

The newest category is AI apps that mark written answers and act as a tutor. Medly is one prominent example of these newer AI tutoring and marking platforms. It offers exam-board-specific practice, tutoring and automated feedback on a freemium model: textbooks and its Learn Mode are available free, while AI-powered practice and feedback have daily limits unless you subscribe. It's worth a look.

But treat any AI-marking tool the same way — Medly and Lightbulb included: test it before you trust it. Submit an answer you already know the mark for, and check the feedback against the real mark scheme. AI marking is improving quickly, but automated marking can vary by platform, subject and question type — and even providers acknowledge it isn't infallible. (Medly, for example, notes that AI marking can vary on extended English responses, and its teacher terms treat AI marks as preliminary, to be reviewed before they're shown to students.) So run your own check on a question you can mark yourself before you subscribe. If the feedback doesn't hold up on something you can verify, that's your answer, whatever the advertising says. Good AI marking is genuinely useful; marking you can't trust is worse than none, because it points revision in the wrong direction.

The ones school makes you use — a different category

Some platforms are introduced through school rather than chosen by the family. Sparx Maths, Sparx Science, GCSEPod and Educake may be used for assigned homework, progress tracking or revision, depending on the school. Whether the work is compulsory — and whether an alternative is available — is a matter for the school's homework policy, not the platform.

Sparx Maths uses personalised questions and bookwork checks intended to encourage students to record their working. Some students and parents find the completion requirements frustrating, while others value the structure. GCSEPod centres on short video "Pods" and accompanying quizzes. Educake provides automatically marked questions and is available through both school and individual subscriptions.

When a school assigns a platform, treat that work as one part of the student's overall programme. Its independent-learning or revision features may still be useful, but additional targeted work may be needed where your child has specific gaps. And if a mandated platform has become a flashpoint in the house, the calm-it-down approach in helping with revision without the rows applies just as well to school apps as to everything else.

Don't write off books

It's easy to forget in an app conversation, but CGP revision guides and workbooks are still genuinely good value — cheap, board-specific, and the workbooks are full of practice questions, which is the part that matters. A CGP workbook your child actually writes in can do more than a subscription they never open. Many students do best with a mix: a book for structure, an app for drilling and testing.

How to actually decide what's worth paying for

Strip away the marketing and it comes down to three checks.

Does it match their exam board and tier? A tool built for a different board, or pitched at the wrong tier, wastes your money and their time. If you're not sure which tier your child is on, Foundation versus Higher explains why it changes what they should even be revising.

Does it do a job the free tools don't? The evidence on revision is consistent: testing yourself and doing marked, exam-style practice beat reading and re-reading by a wide margin. Our guide to how to revise for GCSEs sets out that method — and it's the lens to judge any tool by. A paid app earns its place when it makes retrieval and exam practice easier; it doesn't when it's another shelf of notes. Knowing what the command words demand and how mark schemes award marks is also what separates a tool that just tells your child facts from one that helps them score.

Will they actually use it? The best tool your child ignores is worthless. Try the free version, watch for a week or two, and only pay when you can see it's earning its keep.

Where Lightbulb fits — honestly

Since I've asked you to weigh my bias, here's the straight version. I built Lightbulb because the tools I bought for my son mostly gave us more to read, when what he actually needed was to be tested on the right things and shown where he was going wrong. So Lightbulb turns a topic into a full session — notes, flashcards, a quiz and a marked exam question — matched to your child's exam board and, where a subject is tiered, their tier. It's built around retrieval and marked practice rather than a notes library, which reflects the strong evidence for retrieval and repeated practice, while also giving students feedback on their own answers.

Is it right for everyone? No. If your child is happy with Bitesize and a CGP workbook, you may not need anything else, and I'd rather tell you that than sell you a subscription you won't use. Where Lightbulb tends to help most is the family who's tried the free tools and found the missing piece is personalised marking and feedback on their child's own written answer — the part that's harder to get consistently for free (free exam-style questions themselves, like PMT's, are easy to find). The first three sessions are free — no card needed — so you can see whether it's that missing piece before you decide.

The honest headline for the whole guide: start free, pay only for retrieval and marked practice matched to your child's board, and never pay for notes to re-read. Whatever you choose — mine or anyone else's — that's the test that matters.