Gauth will answer a homework question in almost any subject from a photograph. Heddy covers seven subjects and refuses to answer any of them. This comparison is about whether breadth or method is the thing you're short of.
At a glance
| Gauth | Heddy | |
|---|---|---|
| Core action | Photograph a question, get an answer | Get walked to your own answer |
| Subject coverage | Very wide | 7 school subjects + reasoning |
| Gives your answer | Yes | Never |
| Teaching method | Explanation attached to a solution | Four-rung hint ladder |
| Human tutors | Available | No — the AI tutors are the product |
| Flashcards | No | Free and unlimited |
| Curriculum focus | General / international | UK, KS3 into GCSE |
| Age / region | General | 13+, UK only |
| Best for | Clearing a broad homework load | Understanding one thing properly |
What Gauth does better
Coverage, and it's a real advantage. Heddy has seven subjects. Gauth will have a go at almost anything you photograph, which matters on a Sunday evening with five subjects due and one of them not on our list.
Speed at volume. If the task is to get through a stack of questions, an app that answers them is structurally faster than one that walks you through each. That's arithmetic, not opinion.
Access to a human when the AI can't. Having a real tutor as a fallback is a genuine feature and we don't have it — our eight tutors are AI, all the way down, and we say so plainly rather than blurring it.
No UK-only limit, no 13+ floor. If you're outside the UK or younger, Heddy isn't available to you and Gauth is.
The cost of an answer
The trade is the same one every solver app makes, and it's worth stating without moralising.
When an app hands you a solved question, you skip the three steps that would have produced learning: recognising the problem type, choosing the method, executing it. An explanation attached to a solution helps a little — but reading someone else's correct reasoning produces the feeling of understanding without the retrieval that makes it stick. That feeling is why solver apps are so satisfying and why the June exam so often disagrees with them.
Heddy's answer to this is structural rather than pastoral. Ask a professor and you get a question back, then a narrower one, then the method named, then — at the top of the ladder, with nothing above it — a fully worked similar problem and "now redo yours". You never receive your own answer, because carrying the method across is the part that teaches.
Worth being clear that this is slower and more annoying. That's the price, and we'd rather quote it than hide it.
The UK curriculum difference
A broad international solver answers the question in front of it correctly. It does not necessarily answer it the way your exam board wants it answered.
Heddy's seven professors teach the UK curriculum specifically — KS3 into GCSE, with the methods, notation and mark-scheme habits that go with it. Professor Quill builds analytical writing the way an English paper is actually marked; Professor Harari weighs sources the way a history paper asks you to. For a UK student that's a narrower product and a more useful one; outside the UK it's simply the wrong tool.
What happens after the question
Gauth solves it and you close the app.
A Heddy session ends with /cards — flashcards written by the professor who just watched you get it wrong, with your specific misconception recorded on them, scheduled to return before you forget. And when one still won't go in, you can take that exact card back to him.
That loop is the whole difference. One app is a transaction. The other is trying to make itself unnecessary.
Which to choose
Gauth if you need breadth, you're outside the UK or under 13, or tonight's honest problem is a volume of homework rather than a gap in understanding.
Heddy if you're a UK secondary student, and the thing you're short of is not answers but method.
Comparison written 10 Sep 2026 from each product's public description. Features and pricing change — check the current App Store listing before deciding. Written by Duke Harewood, who builds the tutors at aitutors.me.