KnowDay vs MathMentor Pro
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
KnowDay
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Knowday turns curiosity into a daily habit. Pick a topic, discover a surprising fact, answer a quick question, and see instantly if youβre right. Build streaks, unlock titles, and save your favorite facts. No long reads. No boring lessons. Just one fun moment of discovery every day.
MathMentor Pro
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Your Math Tutor at the Fingertip! MathMentor Pro turns any math worksheet into your personalized SAT and PSAT practice. Just snap a picture of a worksheet with your phone or device, and MathMentor Pro generates 10 new problems matched to what you are already working on, including five problems at the same difficulty and another five at a level harder to help your student excel at the target math concept and skill. A Digital Math Tutor Guides Your Growth Every problem includes a complete, step-by-step solution with clear mathematical notation. Designed for grades 6β12. Pre-algebra through precalculus, all SAT/PSAT domains covered with no manual setup required. Full solutions, not just answers. Each worked solution explains the reasoning behind every step, so you can learn why an answer is correct - really dive into the concept and skill to own it! Zero Sweat in Running & Save all Your Energy to Learning Export to PDF. Print a clean worksheet or answer key and share via AirDrop, Mail, or Files. Sign in with Apple keeps your account secure across devices. Subscriptions auto-renew and can be cancelled any time in your Apple ID settings. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: KnowDay at none against MathMentor Pro's 2. KnowDay also leads on update cadence (every 5 weeks vs every 3 months) and iOS requirement (15.1 vs 26.0). On price, ads and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. MathMentor Pro sells 2 in-app purchases, starting at $9.99 per month. KnowDay asks for nothing beyond the download.
KnowDay ships an update every 5 weeks, MathMentor Pro every 3 months. The most recent releases landed on November 9, 2026 and October 31, 2026 respectively.
| Parameter | KnowDay | MathMentor Pro |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 weeks β better | Every 3 months |
| Ads | No | No |
| In-app purchases | No β better | Yes |
| Devices | iPhone, iPad, iPod β better | iPhone, iPad |
| Requires iOS | 15.1 β better | 26.0 |
| Further details β not scored | ||
| Size | 67 MB | 18 MB |
| Age rating | 4+ | 4+ |
| Developer | Daniel Brouwer | SHIHYI HSUEH |
In-app purchases
KnowDay
No in-app purchases
MathMentor Pro
- MathMentor Pro$9.991 Month
- MathMentor Pro$99.991 Year
Questions
Is KnowDay free?
Is MathMentor Pro free?
Do KnowDay or MathMentor Pro have ads?
Which is updated more often, KnowDay or MathMentor Pro?
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