Comparison

Science Simulations vs Flexi AI Tutor & Homework Help

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

Head to head
About

Science Simulations

Explore over 150 interactive chemistry and physics simulations to understand complex science concepts. This app offers an intuitive, game-like environment for learning at home or in the classroom, with offline access to educational resources.

Highlights
  • 150+ interactive simulations
  • Chemistry and physics concepts
  • Classroom and home use
  • Offline access
  • Game-like learning environment
  • Creative Commons licensed content
Features
Read full description

Play and learn with more than 150 interactive chemistry and physics simulations, and dive into a wide range of science concepts. How do acid-base solutions work, what do atomic interactions look like, or what is a regression? Perfect for use in the classroom or at home, these award-winning resources create an intuitive, game-like environment that encourages exploration, discovery, and learning. Powered by Kiwix, this app provides offline access to open educational resources developed by the PhET Interactive Simulations project at the University of Colorado Boulder. All content is available under the Creative Commons Attribution license (CC-BY), making it freely accessible for everyone. For those who want to support the mission of the PhET project, consider purchasing the official PhET App on this store —a one-time payment for lifetime access. Whatever your level. start your journey into science today with interactive, engaging, and educational simulations!

About

Flexi AI Tutor & Homework Help

Get instant, free AI-powered tutoring for math, science, and chemistry. Snap a picture of your homework problems for step-by-step solutions and expert guidance anytime, anywhere. Improve your grades and master difficult concepts with this pocket-sized teacher.

Highlights
  • AI-powered tutoring
  • Snap and solve math problems
  • Instant step-by-step solutions
  • Personalized expert guidance
  • Homework and test prep support
  • 24/7 availability
Features
Read full description

Flexi – The Free AI Tutor for Math, Science & Homework Help Struggling with math, science, or chemistry? Need tutoring for homework help or test prep? Whether you're in school or just want to improve your learning, Flexi is your free AI tutor—available anytime, anywhere! With Flexi, you get instant tutoring for math, science, and chemistry to boost your grades and master concepts with ease. No more waiting for a teacher or struggling alone—Flexi provides step-by-step explanations for any question. Just snap a picture of your math problem, and Flexi will solve it instantly—for free. No ads, no in-app purchases. Why Choose Flexi for Free Tutoring & Homework Help? Snap and Solve: Take a picture of any math problem and get instant solutions. Instant Answers: Solve any math, science, or chemistry problem in seconds. Personalized Tutoring: Get expert guidance like a private teacher—for free. Homework Made Easy: Get step-by-step solutions for schoolwork and assignments. Science and Chemistry Help: Learn difficult concepts with clear explanations. Improve Your Grades: Get the learning support you need to succeed. How Flexi Helps You Learn for Free Math Tutoring – Get help with algebra, calculus, geometry, and more. Science Tutoring – Master physics, biology, and chemistry step by step. Snap a Math Problem – Take a picture and let Flexi solve it for you. Free AI Tutor for Homework – Solve tough assignments with expert guidance. Test Prep and School Support – Ace your quizzes and exams with in-depth explanations. 24/7 AI Tutoring – Your AI tutor never takes a break. Built for Every Student Whether you're in high school, middle school, or college, Flexi is designed for learning at any level. Need help from a tutor but don’t have access to one? Flexi works like a teacher in your pocket—and it’s completely free. 100% Free and Always Available No hidden fees—Flexi is completely free for all students. Available on any device—study at home, in class, or on the go. Trusted by millions—over 1.5 million students use Flexi every month. Download Flexi now and make schoolwork easier with the best free AI tutor!

Screenshots

Science Simulations4 screens
Flexi AI Tutor & Homework Help4 screens

Verdict

The call

The clearest difference is review sentiment: Science Simulations at 100% against Flexi AI Tutor & Homework Help's 57%. Science Simulations also leads on rating (4.8 vs 4.3). Flexi AI Tutor & Homework Help's advantage is update cadence (monthly vs every 2 months) and ratings volume (14 vs 4). On price, ads, in-app purchases and monetization model 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Science Simulations holds the better App Store score, 4.8 against 4.3. Both are backed by a comparable volume of ratings — 4 and 14 respectively. Written reviews point the same way: 100% of Science Simulations's written reviews are positive against 57% of Flexi AI Tutor & Homework Help's.

UpkeepUpdate frequency

Science Simulations ships an update every 2 months, Flexi AI Tutor & Homework Help monthly. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.

Scorecard5 real differences · 5 level
Science Simulations versus Flexi AI Tutor & Homework Help: the parameters behind the verdict, then further details
ParameterScience SimulationsFlexi AI Tutor & Homework Help
PriceFreeFree
Rating4.8 (4 ratings) — better4.3 (14 ratings)
Positive reviews100.0% of reviews — better57.1% of reviews
Number of ratings414 — better
Update frequencyEvery 2 monthsMonthly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, MaciPhone, iPad, iPod
Requires iOS17.615.1 — better
Further details — not scored
Size164 MB19 MB
Age rating4+4+
DeveloperWikimedia CHCK-12 Foundation

Customer experience

Science Simulations

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Flexi AI Tutor & Homework Help

All ratings14 ratings
Positive78.6%
Neutral7.1%
Negative14.3%
Written reviews7 reviews
Positive57.1%
Neutral14.3%
Negative28.6%

In-app purchases

None

Science Simulations

No in-app purchases

None

Flexi AI Tutor & Homework Help

No in-app purchases

Questions

Is Science Simulations free?
Science Simulations is free to download, with no in-app purchases.
Is Flexi AI Tutor & Homework Help free?
Flexi AI Tutor & Homework Help is free to download, with no in-app purchases.
Which has better reviews, Science Simulations or Flexi AI Tutor & Homework Help?
Science Simulations is rated higher. Science Simulations averages 4.8 out of 5 from 4 ratings, while Flexi AI Tutor & Homework Help averages 4.3 from 14 ratings.
Do Science Simulations or Flexi AI Tutor & Homework Help have ads?
Neither Science Simulations nor Flexi AI Tutor & Homework Help shows ads.
Which is updated more often, Science Simulations or Flexi AI Tutor & Homework Help?
Science Simulations ships an update every 2 months, and Flexi AI Tutor & Homework Help monthly. Most recently, Science Simulations was updated on October 25, 2026 and Flexi AI Tutor & Homework Help on October 28, 2026.

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