COMath vs Signum Tarot
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
COMath
This app acts as a personal math tutor, offering support and practice for arithmetic, algebra, and geometry. It provides over 100,000 word problems with step-by-step solutions and an equation solver to help students develop their math skills.
- Personalized math tutoring
- Arithmetic practice (addition, subtraction, multiplication, division)
- Over 100,000 math word problems
- Step-by-step equation solving
- Algebra and geometry support
- Practice without pencils
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COMath is a fun math and brain-training app for students and puzzle lovers of all ages. - Practice addition, subtraction, multiplication, and division - Solve 100,000+ math word problems with explanations - Learn algebra step by step with the equation solver - Enjoy number puzzles like Sudoku, Calcudoku, Fillomino, Minesweeper, Calculate 24, and more Practice math, sharpen logic, and enjoy solving challenges anytime, anywhere.
Signum Tarot
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Signum isn’t a tarot dictionary you memorize once and forget. You practice pulling keywords in context—then assembling them into a reading—so meanings show up when a spread needs them. • Keyword training for all 78 Rider–Waite–style cards • Block assembly, not multiple-choice trivia • Progress from single cards → past / present / future → Celtic Cross • Spaced review so you pull meanings again before they fade • Daily new-card goals, streaks, and a mastery grid • Optional shareable “today’s fortune” card New here? Use the 21-day free trial to find your rhythm. Continue with Signum Pass when you’re ready. Signum Pass (auto-renewing subscription) • 1 month: ₩6,900 • 12 months: ₩69,900 (about ₩5,825 / month) • Renews automatically unless you cancel at least 24 hours before the period ends in your Apple ID subscriptions. • Manage or cancel anytime: Settings → Apple ID → Subscriptions. Terms of Use (EULA): https://desert-fern-16a.notion.site/Terms-of-Use-3a4ed2fbe91080bca588d2f4f782dfdb Privacy Policy: https://desert-fern-16a.notion.site/Privacy-Policy-Signum-3a4ed2fbe9108025a6bfe40c41e6e4d8
Screenshots
Verdict
The clearest difference is in-app purchases: COMath at none against Signum Tarot's 2. Signum Tarot's advantage is ads (none vs shown). On price, device support and iOS requirement 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. Signum Tarot sells 2 in-app purchases, starting at $3.99 per month. COMath asks for nothing beyond the download.
| Parameter | COMath | Signum Tarot |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (45 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 45 — better | — |
| Update frequency | Monthly | — |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad, iPod |
| Requires iOS | 15.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 89 MB | 114 MB |
| Age rating | 9+ | 4+ |
| Developer | Jianfeng Wu | Jiyeon Lim |
In-app purchases
COMath
No in-app purchases
Signum Tarot
- Signum 1개월$3.991 Month
- Signum 12개월$39.991 Year
