Photomath is the gold standard for scanning and solving math problems on your phone. Over 733,000 App Store ratings. A 4.8 average. Owned by Google since 2023. If step-by-step math solving is all you need, it is genuinely hard to beat.
But most students do not only study math. When your week includes chemistry problems, history essays, biology diagrams, and a literature analysis on top of your calculus homework, a single math scanner app does not cover your full study load. That is exactly when finding the best photomath alternative starts to matter.
This guide breaks down what Photomath does exceptionally well, where it stops, and how Acuity compares as a multi-subject study companion for students who need more than just a math solver.
What Photomath does best
Photomath has been around since 2014. A decade of iteration, now backed by Google. That combination of longevity and engineering resources shows in the product.
Point your camera at any math problem, handwritten or printed, and Photomath returns a step-by-step solution in seconds. The OCR engine is accurate and forgiving. The explanations do not just give you the answer; they walk through each step, naming the method being used, whether that is factoring, the quadratic formula, integration by parts, or anything else. For high school and early university math, it covers an impressive range: arithmetic, algebra, geometry, trigonometry, statistics, and calculus.
With 733,174 App Store ratings averaging 4.8 stars, this is one of the most-reviewed educational apps in the world. That kind of volume does not come from marketing budgets. It comes from a product that consistently works when students need it most, at 10 pm the night before an exam.
The scanning experience deserves its own mention. You do not type equations or format anything. Snap a photo of your textbook page, your printed worksheet, or a handwritten problem in your notebook, and Photomath handles recognition automatically. That seamless experience is what made it the default math scanner app for millions of students worldwide, and why it remains so hard to displace on its home turf.
Where Photomath hits its ceiling
Photomath solves math. Just math. That is both its defining strength and its hard ceiling.
Try scanning a chemistry balancing equation — nothing. Ask it to summarize your biology notes before an exam — no feature exists for that. There is no AI tutor chat for follow-up questions when you do not understand a step. No study sheet generator. No quiz to test yourself once you have reviewed the material. Photomath solves one problem, then it is done.
For students who cover multiple subjects, that means switching between three or four apps in a single study session. Your math practice happens in Photomath, your notes in one app, your flashcards in another, your AI questions somewhere else. The study history, the notes, and the problem-solving practice are all fragmented across tools with no connection between them.
There is also a ceiling within math itself. Complex word problems that require reasoning across multiple conditions, or exercises that blend concepts from different chapters, do not always parse cleanly through a visual recognition engine. Photomath is an ai step by step math solver at its core. The scanning-first approach works brilliantly on structured, clearly formatted problems, and less reliably on open-ended reasoning.
None of this is a knock on the product. Photomath does exactly what it sets out to do. The limit is simply that it does not set out to do much beyond one thing.
Photomath alternative: how Acuity fills the gap
Acuity was built to answer a specific frustration. A student who studies math, biology, history, and languages should not need four separate apps to get through a typical week.
On math, Acuity covers the same ground. Scan an exercise with your camera, get a detailed step-by-step solution, and ask Mathilda, the built-in AI tutor, follow-up questions if anything is unclear. For standard high school and university math problems, the accuracy is on par with the best math solver apps available.
The difference starts once you leave math. Biology diagrams, chemistry formulas, history questions, grammar exercises — Acuity handles them all because it uses generative AI to understand context, not just recognize equation patterns. You can photograph lecture slides, import notes, or simply type a question in any subject, and the app works with it.
Beyond solving, Acuity adds the full study cycle. Take a photo of your class notes and generate a structured study sheet from them automatically. Turn that study sheet into a personalized quiz. Review the material, test yourself, and identify the concepts you keep getting wrong. It is not just the moment you are stuck on a problem; it is the entire process of learning and retaining information.
The Best AI math homework helpers guide covers the broader landscape if you want to see how Photomath, Gauth, and Acuity compare across more dimensions side by side.
Photomath vs Acuity: full feature comparison
| Feature | Photomath | Acuity |
|---|---|---|
| Camera math scanning | ✅ | ✅ |
| Step-by-step AI solutions | ✅ | ✅ |
| Multi-subject support | ❌ | ✅ |
| Study sheet generation | ❌ | ✅ |
| Quiz from your notes | ❌ | ✅ |
| AI tutor chat | ❌ | ✅ |
| No account required | ❌ | ✅ |
| iOS | ✅ | ✅ |
| Android | ✅ | ❌ |
| Free tier | ⚠️ Basic math only | ⚠️ 12 exercises/day |
The table tells the story clearly. On math solving, both apps are competitive. Step away from math and Photomath offers nothing further. Acuity covers the full study toolkit, from solving to studying to self-testing, within a single app.
One important constraint: Photomath runs on iOS and Android. Acuity is currently iPhone only. If you are on Android, that settles the decision regardless of how the features compare.
Pricing: what you get free and what you pay for
Photomath's free tier covers basic step-by-step solutions for most standard problems. Animated step breakdowns, more detailed explanations for complex topics, and some advanced features require Photomath Plus, a paid subscription. The pricing is comparable to other premium study apps.
Acuity's free tier is more clearly defined. You get 12 exercise solutions per day, 10 messages with Mathilda the AI tutor, and up to 6 study sheets in total. For students working through daily homework, that typically covers regular use without needing to subscribe. No account is required to get started.
Premium removes all limits: unlimited exercises, unlimited study sheets, unlimited quizzes, and unlimited Mathilda access. The yearly subscription brings the price down significantly, up to 75% cheaper than paying month by month, making it one of the better value study apps when you use it regularly.
Neither app is unlimited on the free tier. The difference is what you are paying for. Photomath charges for deeper math explanations. Acuity charges for unlimited access to the full study toolkit. If you want to compare Acuity at different price points against other apps, the Best study apps in 2026 breakdown covers that in detail.
Which app fits your study routine
The honest answer depends on what your actual study week looks like.
Choose Photomath if:
- Your course load is math-heavy: algebra, calculus, trigonometry are your primary subjects
- You want the most mature and widely-tested math scanning engine available
- You are on Android (Acuity does not currently support it)
- You are happy managing separate apps for different study modes
Choose Acuity if:
- You study multiple subjects and want one app to cover all of them
- You want to go beyond solving exercises and actually build study materials: notes, sheets, quizzes
- You want an AI tutor that can have a conversation with you, not just show calculation steps
- You are on iPhone and want to stop switching between four tools per study session
Acuity is not trying to out-Photomath Photomath. Google has a decade of head start on math scanning, and the product shows it. What Acuity does differently is treat studying as a whole: solve the problem, understand the concept, review the material, test yourself on it.
Most students who move away from Photomath do not do it because they found a better math solver. They do it because they got tired of juggling apps. If that sounds familiar, download Acuity free on the App Store and run it alongside your current setup for a week. No account, no commitment required.