클래스톡 vs SnackLab
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
클래스톡
Stay informed about your child's school life from kindergarten to high school. Receive class notices, view academic schedules, and communicate directly with teachers through one-on-one or group chats.
- View class notices and school news
- Access monthly academic calendars and events
- 1:1 and group chat with teachers
- Information for kindergarten to high school
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[ 클래스톡 주요 서비스 안내 ] 유치원부터 고등학교까지 우리 아이의 학교 정보를 알 수 있습니다. 학급알림장 - 자녀의 알림장과 학교 소식을 한 눈에 볼 수 있습니다. 학사일정 - 모든 행사와 주요 일정을 월 마다 볼 수 있습니다. 채팅 - 선생님과 1:1 채팅 또는 그룹채팅을 할 수 있습니다.
SnackLab
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One app for the whole span of school and university math — from quadratics to Fourier series. Write an equation on the left and it is drawn immediately on the right. Tap an intersection, an extremum or an inflection point and SnackLab gives you the exact coordinates: a fraction, a root, a multiple of π — not a rounded decimal. WHAT YOU CAN GRAPH Functions Polynomial, rational, trigonometric, exponential and logarithmic curves. Piecewise definitions, asymptotes and removable discontinuities are handled properly. Calculus Derivatives, definite-integral regions, extrema and inflection points with exact coordinates. 3D Surfaces, planes and lines, the curves where they intersect, and closed regions. Rotate and pan freely. Statistics Distributions, interval estimates, data entry and charts. Differential equations Direction fields, numerical solutions, Laplace transforms. Keep several equations and switch between them. Engineering mathematics Matrices and eigenvalues, vector calculus, Fourier series, the complex plane. BUILT FOR EXPLORING Drag a slider and watch the curve respond — coefficients, parameters and domains update live. Save a graph straight to your photo library. The keyboard is laid out for mathematics, not for text: fractions, roots, exponents and Greek letters are one tap away, and the whole keyboard hides when you want the full screen for the graph. PRIVACY SnackLab collects nothing. No account, no sign-in, no analytics. Everything you type stays on your device. Available in English, Korean, Japanese, Chinese, Spanish, Portuguese, German, French, Indonesian and Vietnamese.
Screenshots
Verdict
The clearest difference is update cadence: SnackLab at every 2 days against 클래스톡's every 3 weeks. SnackLab also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On price, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
클래스톡 ships an update every 3 weeks, SnackLab every 2 days. Both last shipped on October 29, 2026.
| Parameter | 클래스톡 | SnackLab |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| Update frequency | Every 3 weeks | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 40 MB | 109 MB |
| Age rating | 4+ | 4+ |
| Developer | NETBREEZE | SnackLab |
In-app purchases
클래스톡
No in-app purchases
SnackLab
No in-app purchases









