Block Logic vs knotecards
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Block Logic
This app offers daily brain training exercises to enhance memory and concentration. It features 20 progressive difficulty levels to challenge your cognitive skills and improve mental agility through short, relaxing gameplay sessions.
- Memory and concentration improvement
- Daily brain training sessions
- 20 progressive difficulty levels
- Track progress and beat records
- Simple rules, challenging patterns
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Block Logic: Brain Training IQ is a daily brain training game designed to improve your memory and concentration. Memorize patterns, focus your attention, and challenge your brain through 20 progressive difficulty levels. Each level pushes your memory a bit further, helping you build a stronger and faster mind over time. Just a few minutes a day is enough to train your brain. Playing daily helps improve memory skills, mental focus, and cognitive agility — all through a simple and relaxing gameplay experience. Why play Block Logic every day? • Improve memory and concentration • Train your brain with short daily sessions • 20 difficulty levels that adapt to your progress • Simple rules, challenging patterns • Track your progress and beat your own records Consistency is the key. The more you play, the better your memory becomes. Train your brain. Improve every day.
knotecards
Prepare for your Private Pilot Checkride with flashcards created by Certified Flight Instructors. This study tool covers ACS standards and includes sources for accurate information. Organize cards by knowledge level for efficient learning.
- Flashcards designed by CFIs
- Covers ACS Standards
- Includes sources for accuracy
- Systematic and weighted card viewing
- Covers 141 curriculum areas
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Study for your Private Pilot Checkride with Knotecards! Flashcards designed by CFIs to ACS Standards. Knotecards is a study tool for your Private Pilot Certificate made by Certified Flight Instructors. Each flashcard includes sources, so you can be sure the information you’re memorizing is accurate, and read more deeply for further understanding. The database of flashcards can be viewed systematically, or weighted based on whether you’ve marked each card as known or unknown. The content is designed based off of the ACS and 141 curriculum to ensure each potential area of the Private Pilot oral exam is covered. With years of flying experience from experts built into Knotecards, you can be sure you’re thoroughly prepared for the private pilot check ride.
Screenshots
Verdict
The clearest difference is price: Block Logic at Free against knotecards's $3.99. Block Logic also leads on ratings volume (57 vs 3) and iOS requirement (15.1 vs 17.6). knotecards's advantage is ads (none vs shown) and update cadence (every 6 weeks vs every 19 months). On 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
Block Logic is free to download; knotecards costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
knotecards holds the better App Store score, 4.7 against 4.4. That said, the two scores are not equally well evidenced: Block Logic has 57 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 86% of Block Logic's written reviews are positive against 100% of knotecards's.
Block Logic ships an update every 19 months, knotecards every 6 weeks. Both last shipped on October 24, 2026.
| Parameter | Block Logic | knotecards |
|---|---|---|
| Price | Free — better | $3.99 |
| Rating | 4.4 (57 ratings) | 4.7 (3 ratings) — better |
| Positive reviews | 85.7% of reviews | 100.0% of reviews — better |
| Number of ratings | 57 — better | 3 |
| Update frequency | Every 19 months | Every 6 weeks — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported — better | Paid |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.1 — better | 17.6 |
| Further details — not scored | ||
| Size | 26 MB | 1 MB |
| Age rating | 4+ | 12+ |
| Developer | Javier Campana | altymytry |
Customer experience
Block Logic
knotecards
In-app purchases
Block Logic
No in-app purchases
knotecards
No in-app purchases









