Comparison

Number Guess vs Einstein AI

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Number Guess

Features
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- To solve n equations with n knowns. - You need to weight some unknowns(A, B, C, etc) against some knowns (2, 4, 8, 16, etc) to find equations. - You need to find unique equations until you figure out the unknowns. - To find n unknowns, you need n unique equations.

About

Einstein AI

This app uses the Feynman Learning Technique to help you master any subject through voice interaction. Explain concepts aloud, take voice-powered quizzes, and receive detailed performance analysis to identify areas for improvement.

Highlights
  • Voice-powered concept explanation
  • Dynamically generated voice quizzes
  • Detailed performance analysis
  • Subtopic strength identification
  • Hands-free microphone interaction
  • Customizable learning topics
Read full description

Feynman AI: Master Concepts with the Power of Your Voice Unlock your potential with Feynman AI, the ultimate self-improvement app designed to revolutionize the way you learn! Based on the proven Feynman Learning Technique, this app is perfect for students, professionals, and lifelong learners striving to deepen their understanding and achieve mastery in any subject. How It Works Explain to Learn: Begin by voicing the concept or topic you want to master. Engaging Quizzes: Answer dynamically generated quiz questions using your voice, making the process intuitive and accessible. In-Depth Analysis: Receive detailed results that break down your performance across subtopics, highlighting areas of strength and those needing improvement. Why Feynman AI? Voice-Powered Learning: Simplified interaction through your microphone ensures accessibility and ease of use. Targeted Feedback: Pinpoint weaknesses and track progress with insightful, data-driven analysis. Adaptive for Everyone: Whether you're a student preparing for exams or a professional sharpening your skills, Feynman AI adapts to your learning journey. Efficiency Redefined: Spend less time guessing and more time growing with actionable, precise feedback. Key Features Microphone-based interaction for a hands-free experience. Customizable topics to align with your learning goals. Comprehensive result pages with subtopic scores and detailed improvement areas. Intuitive design for a seamless and engaging user experience. Who Is It For? Students: Improve academic performance with focused learning. Professionals: Stay sharp in your field with targeted skill enhancement. Self-Learners: Take control of your personal development and master any subject. Feynman AI combines cutting-edge technology with a proven learning methodology to empower you to learn smarter and faster. Download Feynman AI today and start your journey to mastery! Privacy Policy: https://berkaygemici.github.io/feynman Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Number Guess4 screens
Einstein AI4 screens

Verdict

The call

The clearest difference is ads: Einstein AI at none against Number Guess's shown. Number Guess's advantage is update cadence (every 3 days vs fortnightly). On price, in-app purchases, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Number Guess sells 8 one-off in-app purchases and Einstein AI sells 2 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Number Guess ships an update every 3 days, Einstein AI fortnightly. The most recent releases landed on October 30, 2026 and October 24, 2026 respectively.

Scorecard2 real differences · 8 level
Number Guess versus Einstein AI: the parameters behind the verdict, then further details
ParameterNumber GuessEinstein AI
PriceFreeFree
Rating—4.6 (193 ratings) — better
Positive reviews—20.0% of reviews
Number of ratings—193 — better
Update frequencyEvery 3 days — betterFortnightly
AdsYesNo — better
In-app purchasesYesYes
Monetization—Free with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.015.1 — better
Further details — not scored
Size40 MB32 MB
Age rating17+4+
DeveloperNovaNextBerkay Gemici

In-app purchases

8 purchases

Number Guess

One-time8
  • Coins$0.99
  • Coffee$0.99
  • Remove ads$0.99
Show 5 more
  • Donate $3$2.99
  • Donate $5$4.99
  • Donate $10$9.99
  • Donate $15$14.99
  • Donate $20$19.99
2 purchases

Einstein AI

Subscriptions2
  • Weekly Pro$4.997 Days
  • Yearly Pro$39.991 Year

Questions

Is Number Guess free?
Number Guess is free to download, with in-app purchases available.
Is Einstein AI free?
Einstein AI is free to download, with in-app purchases available.
Do Number Guess or Einstein AI have ads?
Number Guess shows ads; Einstein AI does not.
Which is updated more often, Number Guess or Einstein AI?
Number Guess ships an update every 3 days, and Einstein AI fortnightly. Most recently, Number Guess was updated on October 30, 2026 and Einstein AI on October 24, 2026.

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