MathLens vs Cat AI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MathLens
Instantly solve math problems by scanning them with your camera. Get detailed step-by-step explanations and visualize functions with an interactive graphing calculator. Supports a wide range of math subjects from pre-algebra to calculus.
- Instant problem scanning via camera
- Detailed step-by-step explanations
- Interactive graphing calculator
- Supports multiple math subjects
- AI helper for other subjects
- Handwritten and printed text recognition
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Scan any math problem with your camera and get the full solution. Every step explained, not just the answer. MathLens is the homework helper that teaches you the method, so you can solve the next one yourself. SNAP IT. SOLVE IT. UNDERSTAND IT. Point your camera at a problem, printed in a textbook or handwritten in your notebook, and MathLens reads it and solves it. No typing equations into a calculator, no hunting for symbols on a keyboard. GUIDED MODE: SOLVE IT YOURSELF This is what makes MathLens different from every app that just prints an answer. In Guided Mode you get one hint at a time. Try the next step on your own. Stuck? Tap Show Next Step. Still stuck? Reveal Full Solution is always one tap away. STEP-BY-STEP SOLUTIONS Every solution breaks into numbered steps with the reasoning behind each one: factoring, the quadratic formula, substitution and elimination, limits, derivatives, integrals, geometry proofs and trigonometric identities. ANSWERS THAT MATCH YOUR GRADE Set your study level, from Kindergarten and Primary through Middle School, High School and College, and every explanation is written for that level. YOUR AI TUTOR, ON CALL Ask a follow-up in plain language: why did you square both sides, explain that step again. The AI Tutor covers Math, Physics, Chemistry, Biology, History, Geography and Literature, and it remembers the problem you are working on. TURN ANY TOPIC INTO EXAM PRACTICE Type a topic, snap a worksheet, or upload a PDF or a recorded lecture. MathLens generates practice questions with study notes and a full answer key. See answers as you go, or take it as a quiz and get scored at the end. Ideal prep for SAT, ACT, AP, IB and finals. NOT JUST MATH Switch subjects right on the camera: Math, Physics, Chemistry, Biology, History, Geography, Literature, or General for anything else. Translate mode reads text from any page and translates it into 100+ languages. WRITE IT, SAVE IT, EXPORT IT No camera shot available? Open the Draw Board and write the problem with your finger or a stylus. A full scientific calculator is built in. Every problem you solve is saved to History, and any solution or study set exports as a PDF. MATHLENS PRO MathLens is free to use with daily limits. Pro removes the limits with a weekly or yearly subscription. Payment is charged to your Apple ID at confirmation of purchase. Subscriptions renew automatically unless auto-renew is turned off at least 24 hours before the period ends. Manage or cancel in your Apple ID settings. Privacy Policy: https://app.dngsoft.com/mathscan/privacy-policy Terms of Use: https://app.dngsoft.com/mathscan/terms-of-use
Cat AI
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Munpulgo is a cat that solves problems from a single photo. Stuck on a tough problem? Don't struggle alone. Just take a photo of the problem, and the cat reads it and walks you through the answer and the solution, step by step. [How to use] 1. Take a photo of the problem you're stuck on. 2. The cat reads it and shows you the solution. 3. Still not sure? Just keep asking. [Why you'll love it] • Just snap a photo — no need to type anything in. • Not just the answer, but every step explained. • Ask follow-up questions right in the chat. • Explanations matched to your grade level. • Even complex math formulas shown cleanly. Stuck on a problem? Snap it right now. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is update cadence: Cat AI at daily against MathLens's every 2 weeks. On price, ads, in-app purchases and device support 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
Both are free to download. MathLens sells 2 in-app purchases, starting at $4.99 per 7 days and Cat AI sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
MathLens ships an update every 2 weeks, Cat AI daily. The most recent releases landed on October 15, 2026 and October 14, 2026 respectively.
| Parameter | MathLens | Cat AI |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (6 ratings) — better | — |
| Number of ratings | 6 — better | — |
| Update frequency | Every 2 weeks | Daily — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone | iPhone |
| Requires iOS | 16.6 | 16.4 — better |
| Further details — not scored | ||
| Size | 48 MB | 63 MB |
| Age rating | 4+ | 4+ |
| Developer | DNG SOFT COMPANY LIMITED | Hyeon Jin Ko |
In-app purchases
MathLens
- MathLens Pro7 Days trial$4.997 Days
- MathLens Pro$49.991 Year
Cat AI
- 물고기 250개$0.99
- 물고기 4400개$5.99
- 물고기 8000개$11.99
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- 물고기 25000개$29.99








