TOPIK vs Polymath
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TOPIK
Master Korean vocabulary and grammar from beginner to advanced. Enhance reading and listening with practice questions and engage in practical conversations to improve speaking skills. Quickly assess your TOPIK level with random question tests.
- Vocabulary and grammar improvement
- Reading and listening skill enhancement
- TOPIK practice questions
- 100 practical conversations
- Quick TOPIK level testing
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- Build your Korean vocabulary and grammar skills from beginner to advanced. - Strengthen your Korean reading and listening skills with TOPIK practice questions. - Practice Korean listening and speaking with 100 practical conversations. - Quickly and easily check your TOPIK level with 10 random TOPIK questions.
Polymath
Instantly get step-by-step solutions to math and science problems by simply taking a photo. It explains the reasoning behind each step, not just the answer, and includes a scientific calculator and unit converter.
- Photo recognition for homework problems
- Step-by-step solution explanations
- Supports algebra, geometry, chemistry, physics
- Built-in scientific calculator
- Unit converter
- Solution history for review
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Stuck on a problem? Point your camera at it. Polymath reads your homework and walks you through the solution step by step — not just the answer, but why each step works. HOW IT WORKS Take a photo of any problem, crop to what you need, and get a clear explanation in seconds. WORKS ACROSS SUBJECTS Algebra, geometry, precalculus, chemistry, physics and more. Printed or handwritten. BUILT-IN TOOLS A full scientific calculator with trig, logarithms, roots and combinatorics, plus a unit converter for length, mass, temperature, volume and more. YOUR HISTORY Every solution is saved so you can go back and review before a test. FREE TO START New users get 10 free questions. Earn more by watching a short video, or go unlimited with Polymath Pro. Polymath Pro is an auto-renewing subscription at $2.99/week or $59.99/year. Payment is charged to your Apple Account at confirmation. Subscriptions renew automatically unless cancelled at least 24 hours before the period ends. Manage or cancel in your Apple Account settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is rating: Polymath at 5.0 against TOPIK's 4.5. Polymath also leads on review sentiment (100% vs 75%) and update cadence (every 3 days vs every 10 days). TOPIK's advantage is ratings volume (96 vs 1) and iOS requirement (15.0 vs 26.2). On price, ads, in-app purchases and monetization model 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. TOPIK sells 1 one-off in-app purchase and Polymath sells 2 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.
Polymath holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: TOPIK has 96 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 75% of TOPIK's written reviews are positive against 100% of Polymath's.
TOPIK ships an update every 10 days, Polymath every 3 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.
| Parameter | TOPIK | Polymath |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (96 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 75.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 96 — better | 1 |
| Update frequency | Every 10 days | Every 3 days — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 26.2 |
| Further details — not scored | ||
| Size | 33 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Hyungpil Kim | marco Antonio Tricarico |
Customer experience
TOPIK
Polymath
In-app purchases
TOPIK
- Premium Upgrade$5.99
Polymath
- Polymath Pro Weekly$2.997 Days
- Polymath Pro Annual$59.991 Year
