Comparison

Simple Machines by Tinybop vs RES Exam SG

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

RES Exam SG

Features
Read full description

RESExamSG is the all-in-one prep app for Singapore's Real Estate Salesperson (RES) examination, covering both Paper 1 and Paper 2. WHAT YOU GET - 2,000+ exam-style questions across every RES topic, each with a clear explanation - Timed Mock Exams that mirror the real RES paper and pass mark - Wrong-Question Redo that auto-collects what you got wrong so you can focus on weak areas - Save any question to build your own revision set - Study Progress with daily streaks, per-paper mastery and activity charts - AI Explanations that break down why each answer is right (Pro) TOPICS COVERED Paper 1: land law, interests in land, capacity to hold land, mortgages & trusts, landlord & tenant, agency & contract, development of land, and more. Paper 2: HDB schemes & eligibility, sale of property, developer sales, en bloc, marketing, taxation, rentals & leases, property finance and estate regulations. FREE & PRO Start free with the first 50 questions. Upgrade to Pro for the full question bank, unlimited mock exams, wrong-question redo and AI explanations. Study smarter, not harder, and walk into your RES exam ready to pass. Terms of Use https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ https://resexamsg.1stshop.sg/terms.html Privacy Policy https://resexamsg.1stshop.sg/privacy.html

Screenshots

Simple Machines by Tinybop4 screens
RES Exam SG4 screens

Verdict

The call

The clearest difference is price: RES Exam SG at Free against Simple Machines by Tinybop's $2.99. RES Exam SG also leads on update cadence (daily vs every 4 months). Simple Machines by Tinybop's advantage is in-app purchases (none vs 4) and iOS requirement (12.0 vs 17.0). On 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

RES Exam SG is free to download; Simple Machines by Tinybop costs $2.99 up front. RES Exam SG sells 4 in-app purchases, starting at $9.99 per month. Simple Machines by Tinybop asks for nothing beyond the download.

UpkeepUpdate frequency

Simple Machines by Tinybop ships an update every 4 months, RES Exam SG daily. The most recent releases landed on November 11, 2026 and November 6, 2026 respectively.

Scorecard4 real differences · 6 level
Simple Machines by Tinybop versus RES Exam SG: the parameters behind the verdict, then further details
ParameterSimple Machines by TinybopRES Exam SG
Price$2.99Free — better
Rating3.7 (62 ratings) — better—
Positive reviews37.4% of reviews—
Number of ratings62 — better—
Update frequencyEvery 4 monthsDaily — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaid—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.0 — better17.0
Further details — not scored
Size112 MB3 MB
Age rating4+4+
DeveloperTinybop Inc.1STGROUP PRIVATE LIMITED

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

RES Exam SG

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Simple Machines by Tinybop

No in-app purchases

4 purchases

RES Exam SG

Subscriptions3
  • Monthly Plan$9.991 Month
  • 6 Months Plan$19.996 Months
  • Yearly Plan$29.991 Year
One-time1
  • Lifetime Plan$39.99

Questions

Is Simple Machines by Tinybop free?
Simple Machines by Tinybop costs $2.99, with no in-app purchases.
Is RES Exam SG free?
RES Exam SG is free to download, with in-app purchases available.
Do Simple Machines by Tinybop or RES Exam SG have ads?
Neither Simple Machines by Tinybop nor RES Exam SG shows ads.
Which is updated more often, Simple Machines by Tinybop or RES Exam SG?
Simple Machines by Tinybop ships an update every 4 months, and RES Exam SG daily. Most recently, Simple Machines by Tinybop was updated on November 11, 2026 and RES Exam SG on November 6, 2026.

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