Comparison

Twin Science vs STEM Discovery Campaign

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

STEM Discovery Campaign

Explore and submit STEM activities worldwide on an interactive map. Discover partner projects, learn about different STEM events, and filter entries to find what interests you. Participate in exciting competitions and win awards.

Highlights
  • Browse STEM activities on a map
  • Submit your own STEM activities
  • View partner projects
  • Discover diverse STEM events
  • Filter map and feed entries
  • Participate in competitions
Features
Read full description

Browse and submit all the STEM activities organized, conducted, participated in and featured on the STEM Discovery Campaign map. View your own and other interested stakeholders’ entries on the map, learn about the partners of the campaign and their projects and discover different types of STEM activities that take place in Europe and beyond. Filter the entries to be displayed on the map and the Feed. Participate in competitions and win awards.

Screenshots

Twin Science4 screens
STEM Discovery Campaign3 screens

Verdict

The call

The clearest difference is rating: STEM Discovery Campaign at 5.0 against Twin Science's 4.4. STEM Discovery Campaign also leads on in-app purchases (none vs 10) and iOS requirement (11.0 vs 15.0). Twin Science's advantage is ratings volume (77 vs 1). On price, 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

Both are free to download. Twin Science sells 10 in-app purchases, starting at $2.49 per month. STEM Discovery Campaign asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

STEM Discovery Campaign holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Twin Science has 77 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Twin Science ships an update every 2 months, STEM Discovery Campaign every 6 weeks. The most recent releases landed on October 25, 2026 and October 9, 2026 respectively.

Scorecard5 real differences · 5 level
Twin Science versus STEM Discovery Campaign: the parameters behind the verdict, then further details
ParameterTwin ScienceSTEM Discovery Campaign
PriceFreeFree
Rating4.4 (77 ratings)5.0 (1 ratings) — better
Positive reviews57.1% of reviews—
Number of ratings77 — better1
Update frequencyEvery 2 monthsEvery 6 weeks — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.011.0 — better
Further details — not scored
Size93 MB39 MB
Age rating4+4+
DeveloperTwinEUN Partnership AISBL

Customer experience

Twin Science

All ratings77 ratings
Positive84.4%
Neutral2.6%
Negative13.0%
Written reviews7 reviews
Positive57.1%
Neutral0.0%
Negative42.9%

STEM Discovery Campaign

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

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

STEM Discovery Campaign

No in-app purchases

Questions

Is Twin Science free?
Twin Science is free to download, with in-app purchases available.
Is STEM Discovery Campaign free?
STEM Discovery Campaign is free to download, with no in-app purchases.
Which has better reviews, Twin Science or STEM Discovery Campaign?
STEM Discovery Campaign is rated higher. Twin Science averages 4.4 out of 5 from 77 ratings, while STEM Discovery Campaign averages 5.0 from 1 ratings.
Do Twin Science or STEM Discovery Campaign have ads?
Neither Twin Science nor STEM Discovery Campaign shows ads.
Which is updated more often, Twin Science or STEM Discovery Campaign?
Twin Science ships an update every 2 months, and STEM Discovery Campaign every 6 weeks. Most recently, Twin Science was updated on October 25, 2026 and STEM Discovery Campaign on October 9, 2026.

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