Comparison

Simple Machines by Tinybop vs Math Practice Flash Cards

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

Head to head
About

Simple Machines by Tinybop

Explore the playful side of physics and learn about simple machines through interactive experiments. Kids can discover how levers, pulleys, and other mechanisms work by building and testing them in a digital sandbox environment. This app is designed to spark curiosity and understanding of scientific principles.

Highlights
  • Explore 6 simple machines
  • Experiment with real-world physics
  • Investigate physics at work
  • Learn about force and motion
  • Kid-friendly design
  • Interactive labels in 40+ languages
Features
Read full description

Explore the playful side of physics! “I just love how apps like these get kids genuinely excited about science." — COOL MOM TECH Experiment with levers, pulleys, inclined planes, inclined planes, wedges, wheel and axles, and screws. Discover how they work and investigate the invisible forces behind them in this sandbox app. Destroy a castle, make music, send satellites into orbit & more! *** App Store Editor's Choice *** *** Parents’ Choice Gold Award winner *** Simple Machines integrates with STEM curriculum: kids can alter and test each machine to learn about force and motion, actions and reactions, inputs and outputs, conservation of energy, mechanical advantages, and tradeoffs. Get free activity sheets at tinybop.com. Simple Machines is No. 4 in Tinybop’s Explorer’s Library series, designed for curious kids ages 4+ to dive deep into big ideas. The apps in this series have won Best of the App Store, App Store Editors’ Choice, Parents’ Choice, and Children's Technology Review Editor’s Choice awards. Features: * Explore 6 simple machines: levers, pulleys, inclined planes, wedges, wheel and axles, and screws. * Experiment with real world physics, actions and reactions, inputs and outputs. Learn about force and motion. * Investigate the physics at work behind each machine. * Sophisticated sound design rewards experimentation. * Original artwork by James Gilleard. * Smart features use your device’s camera to bring your kids’ world into the app. * Learn new vocabulary in 40+ languages with interactive labels. * Intuitive, safe, and kid-friendly design. * Entertaining for kids and adults alike. FREE handbook Our expert-reviewed handbook is full of facts, interaction hints, and discussion questions to support learning in this app, in the classroom or at home. Download in your app or at: http://tinybop.com/handbooks. Privacy Policy We take your and your child’s privacy very seriously. We do not collect or share personal information about your child, nor do we allow any third-party advertising. When the camera, microphone, and other services are used within an app, your information is neither collected nor distributed outside of the app. Read our complete privacy policy at tinybop.com. Tinybop, Inc. is a Brooklyn-based studio of designers, engineers, and artists. We make toys for tomorrow. We’re all over the internet. Visit us: www.tinybop.com Follow us: twitter.com/tinybop Like us: facebook.com/tinybop Peek behind the scenes: instagram.com/tinybop We love hearing your stories! If you have ideas, or something isn’t working as you expect it to, please contact us: hi@tinybop.com. Compatible with iPhone 5, 5s, 5c, 6, 6 Plus, iPod touch (5th generation), iPad 2, 3, mini, and Air. **This app is optimized for iPad 2 and iPhone 5 or higher. Requires iOS 7.0 or later. psst! It's not Tiny Bop, or Tiny Bob, or Tiny Pop. It's Tinybop.

About

Math Practice Flash Cards

Features
Read full description

Build math confidence with focused mental math practice and fun arithmetic games. Math Flash Cards helps kids practice addition, subtraction, multiplication, and division in a simple, kid-friendly way. The flashcard mode is designed for active recall: your child looks at the problem, solves it mentally, says the answer, then reveals the result to check their thinking. It is calm, focused practice without unnecessary distractions. When kids are ready for more, the app adds playful math challenges that build speed and accuracy. Speed games ask kids to choose the correct answer before time runs out, while Race games reward quick thinking as the player tries to beat the blue car to the finish line. Additional activities like Find the Missing Number and MakeUpSum help reinforce number sense and flexible thinking. The app is designed for elementary math practice, especially for children working on 1st grade, 2nd grade, and 3rd grade arithmetic skills. It works well for daily practice at home, homeschool lessons, classroom review, test prep, or quick math drills on the go. Kids can also work toward achievements that encourage repeat practice, including flashcard milestones, speed streaks, race wins, and operation challenges. The goal is to make math fact practice feel consistent, rewarding, and easy to return to. The free version includes five flashcards for each operation, plus Speed Addition and Race Addition. A one-time Full Math unlock opens unlimited flashcards, all math games, and premium achievements. There are no ads and no subscription. Math Flash Cards is a reusable digital alternative to paper flashcards, built to help kids strengthen mental math, improve recall, and grow more confident with basic arithmetic.

Screenshots

Simple Machines by Tinybop4 screens
Math Practice Flash Cards4 screens

Verdict

The call

The clearest difference is price: Math Practice Flash Cards at Free against Simple Machines by Tinybop's $2.99. Simple Machines by Tinybop's advantage is in-app purchases (none vs 1) and iOS requirement (12.0 vs 18.6). On update cadence, ads 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

CostPrice · In-app purchases · Ads · Monetization

Math Practice Flash Cards is free to download; Simple Machines by Tinybop costs $2.99 up front. Math Practice Flash Cards sells 1 one-off in-app purchase. Simple Machines by Tinybop asks for nothing beyond the download.

UpkeepUpdate frequency

Simple Machines by Tinybop ships an update every 4 months, Math Practice Flash Cards every 6 months. The most recent releases landed on October 15, 2026 and September 30, 2026 respectively.

Scorecard3 real differences · 7 level
Simple Machines by Tinybop versus Math Practice Flash Cards: the parameters behind the verdict, then further details
ParameterSimple Machines by TinybopMath Practice Flash Cards
Price$2.99Free — better
Rating3.7 (62 ratings) — better—
Positive reviews37.4% of reviews—
Number of ratings62 — better—
Update frequencyEvery 4 months — betterEvery 6 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaid—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.0 — better18.6
Further details — not scored
Size112 MB10 MB
Age rating4+4+
DeveloperTinybop Inc.Easy Simple Smart

Bugs and requests

Simple Machines by Tinybop

Reported bugs

8 issues
  • Crashes immediately on launch
  • Cannot install after purchase
  • App crashes after loading screen
  • No sound
  • Does not work
Show 3 more
  • Download issues
  • Does not open
  • Chinese language not displayed

Requested features

8 requests
  • Add a creative building mode
  • More levels and modules
  • Sandbox mode
  • Ability to build own machines
  • More interactive elements
Show 3 more
  • Add more complex mechanisms
  • Improve wheel and axle interaction
  • Allow bringing up planets in pulley game

Math Practice Flash Cards

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Simple Machines by Tinybop

No in-app purchases

1 purchases

Math Practice Flash Cards

One-time1
  • Unlock All Features$2.99

Questions

Is Simple Machines by Tinybop free?
Simple Machines by Tinybop costs $2.99, with no in-app purchases.
Is Math Practice Flash Cards free?
Math Practice Flash Cards is free to download, with in-app purchases available.
Do Simple Machines by Tinybop or Math Practice Flash Cards have ads?
Neither Simple Machines by Tinybop nor Math Practice Flash Cards shows ads.
Which is updated more often, Simple Machines by Tinybop or Math Practice Flash Cards?
Simple Machines by Tinybop ships an update every 4 months, and Math Practice Flash Cards every 6 months. Most recently, Simple Machines by Tinybop was updated on October 15, 2026 and Math Practice Flash Cards on September 30, 2026.

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