Comparison

Twin Science vs BAU Exchange Help Desk

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

Head to head
About

Twin Science

This app provides sustainability and environmental education for children aged 7-12 through gamified STEM+A content. It features interactive videos, hands-on projects, trivia, and AI-based skill reports for parents and educators.

Highlights
  • SDG-based sustainability content
  • Gamified learning experience
  • AI-based monthly skill reports
  • Interactive discovery videos
  • Hands-on DIY projects
  • STEM+A trivia games
  • Ad-free and moderated environment
Features
Read full description

Twin is providing sustainability & environmental education! ► What Sets Twin Apart in 3Ps: • PURPOSE-LED: SDG-BASED CONTENT Twin provides sustainability and environmental education for children by introducing children to STEM+A solutions for complex problems. Content is linked to the United Nations Sustainable Development Goals. • PLAYFUL: GAMIFIED TWIN APP Twin app provides a playful learning experience for children so that they can learn complex topics while having fun. Engagement rates are 4X higher than average education applications. • PERSONALIZED: SKILL REPORTING With the Twin App's AI-based monthly skills report, teachers and parents can learn about children's unique skills and interests. ► What does Twin offer for educators? • Twin is the #1 app for playful sustainability & environmental education for 7-12 year olds • We cover a wide range of STEM+A topics with a special focus on science and technology. • Twin app demonstrates how STEM+A knowledge can be used for the good of our planet. • Skill report for each child via the teacher dashboard: Teachers get insight into their student's most frequently used 21st century skills such as creativity and problem solving, as well as their interest areas. • Example Activity Journey: Climate Change 1. Watch an Interactive video: Children observe climate change in Antarctica with interactive videos featuring a real explorer. 2. Create a Hands-on Project: Children complete global warming experiments, challenges and projects. 3. Solve Trivia Questions: Children play climate change trivia with friends and grow their knowledge together. 4. Play a STEM+A Game: Children collect trash from the ocean and compete with friends to get the highest points. ► What does Twin offer to parents? • Gamified Platform: Twin offers a unique gamified experience. With Twin, children will unleash their potential in Science, Technology, Engineering, Mathematics and the Arts (STEM+A) in a fully-moderated & safe environment. • Interactive Discovery Videos: Children discover actively & playfully with experts while developing their critical thinking and problem-solving skills. • Challenges: Unleash children's creativity & apply knowledge through 300+ DIY projects! • STEM Trivia: Time to challenge friends! With thousands of cool STEM+A questions, Twin offers one of the best trivia experiences out there. • Adventures: Ready for storified journeys? Turn learning into a true adventure with mini-games, DIY projects, and interactive videos. ► What are Twin Discovery Videos? • Discovery videos are interactive STEM videos that stimulate curiosity. • Content explained by real-life professionals makes learning relatable again! How about learning about climate change. ► Is Twin safe? • Children's safety is our priority! No bullies are allowed in the Twin app! Twin is a fully-moderated and ad-free social platform. ► Why Twin? * Our mission is to empower the next generation of curious minds & creative thinkers to build a better future for everyone. This is why we adopt a skill-based approach that develop conscience and competence in STEM at the same time. Our STEM4Good approach differentiates us from the other apps! ► Stay up to date • LIKE US – facebook.com/twinscience • FOLLOW US – instagram.com/twinscience ► Need help? • We love hearing from our community. Contact us any time: hello@twinscience.com ► Policies • Terms of Use: https://twinarcadiamedia.twinscience.com/app-files/onboarding-files/agreements_as_html/en_term_of_use.html • Privacy Policy: https://twinarcadiamedia.twinscience.com/app-files/onboarding-files/agreements_as_html/en_privacy_notice.html

About

BAU Exchange Help Desk

Features
Read full description

Bahcesehir University (BAU) offers exchange programs to its students and this application includes all information about these different programs including Erasmus+ and World Exchange. The application is also considered as a guide for the incoming exchange students who visit BAU for a semester from different countries around the world.

Screenshots

Twin Science4 screens
BAU Exchange Help Desk4 screens

Verdict

The call

The clearest difference is in-app purchases: BAU Exchange Help Desk at none against Twin Science's 10. BAU Exchange Help Desk also leads on update cadence (weekly vs every 2 months) and iOS requirement (10.0 vs 15.0). On price, 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

Both are free to download. Twin Science sells 10 in-app purchases, starting at $2.49 per month. BAU Exchange Help Desk asks for nothing beyond the download.

UpkeepUpdate frequency

Twin Science ships an update every 2 months, BAU Exchange Help Desk weekly. The most recent releases landed on October 25, 2026 and October 30, 2026 respectively.

Scorecard3 real differences · 7 level
Twin Science versus BAU Exchange Help Desk: the parameters behind the verdict, then further details
ParameterTwin ScienceBAU Exchange Help Desk
PriceFreeFree
Rating4.4 (77 ratings) — better—
Positive reviews57.1% of reviews—
Number of ratings77 — better—
Update frequencyEvery 2 monthsWeekly — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.010.0 — better
Further details — not scored
Size93 MB103 MB
Age rating4+4+
DeveloperTwinBahcesehir University

In-app purchases

10 purchases

Twin Science

Subscriptions10
  • Premium Membership$2.491 Month
  • Premium Membership$2.991 Month
  • Premium Membership7 Days trial$3.491 Month
Show 7 more
  • Monthly Premium Plan7 Days trial$7.991 Month
  • Premium Membership$23.991 Year
  • Premium Membership$27.991 Year
  • Premium Membership7 Days trial$29.991 Year
  • 6 Months Education Pack$44.996 Months
  • Yearly Premium Plan7 Days trial$79.991 Year
  • 1 Year Education Pack$79.991 Year
None

BAU Exchange Help Desk

No in-app purchases

Questions

Is Twin Science free?
Twin Science is free to download, with in-app purchases available.
Is BAU Exchange Help Desk free?
BAU Exchange Help Desk is free to download, with no in-app purchases.
Do Twin Science or BAU Exchange Help Desk have ads?
Neither Twin Science nor BAU Exchange Help Desk shows ads.
Which is updated more often, Twin Science or BAU Exchange Help Desk?
Twin Science ships an update every 2 months, and BAU Exchange Help Desk weekly. Most recently, Twin Science was updated on October 25, 2026 and BAU Exchange Help Desk on October 30, 2026.

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