Comparison

Todo Math vs WWF Free Rivers

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

Head to head
About

Todo Math

This app offers over 2,000 interactive math activities for children from preschool to 2nd grade. It covers counting, calculation, logic, geometry, and time-telling, with adjustable challenge levels and accessibility features for all learners.

Highlights
  • 2,000+ interactive math activities
  • Covers counting, calculation, logic, geometry, time
  • Adjustable challenge levels (Pre-K to 2nd grade)
  • Accessibility features (8 languages, dyslexic font)
  • Parent dashboard for progress tracking
  • Placement test for accurate level selection
Read full description

The #1 math app for early learners — from counting to multiplication. ■ #1 in the App Store in 20+ countries and created by an award-winning team. More than 10 million parents and 5,000 teachers have made Todo Math their go-to app for young learners › COMPREHENSIVE: 2,000+ interactive math activities for Pre-K through 2nd grade. › LOVED BY KIDS: math practice kids ask to play. Engaging gameplay, beautiful graphics, and adorable collectibles. › EDUCATIONAL: Common Core State Standards-aligned curriculum. 5,000+ elementary classrooms have used Todo Math. › INCLUSIVE & ACCESSIBLE: playable in 8 languages, left-handed mode, help button, dyslexic font and other accessibility features empower ALL children to learn independently. Try Todo Math for free today! › Easy email signup. › No commitment, no credit card information collected. ■ Todo Math covers all the fundamentals of early math education › Counting and Number Concepts - learn to write and count numbers. › Calculation - practice addition, subtraction, multiplication, and word problems. › Mathematical Logic - number-based memory games and pictographs. › Geometry - Learn basic geometry, such as drawing and learning shapes. › Clocks & Calendars – learn days of the week, months of the year, and how to tell time. ■ Todo Math lets you select the right challenge level for your child › Level A (Preschool) – Count to 10 and identify the names of shapes. › Level B (Kindergarten Basics) – Count to 20, and add and subtract within 5. › Level C (Kindergarten Mastery) – Count to 100, add and subtract within 10, tell time to the hour. › Level D (1st Grade Basics) – Place value and simple geometry. › Level E (1st Grade Mastery) – Carry-over addition, subtraction with borrowing, and dividing a plane figure equally. › Level F (2nd Grade Basics) – Three-digit addition and subtraction, measurements with ruler, and graph data. › Level G (2nd Grade Mastery) – Comparing three-digit numbers, addition and subtraction of two-digit numbers, foundation of multiplication. › Level H (3rd Grade Basics) – Learn to do basic division. Understand the concept of fractions and know how many faces, edges, vertices each 3D shape contains. › Not sure of which level is right for your child? No problem! Use the in-app placement test. ■ Parents Page › Easily change your child’s level, edit their learning profile, and review their learning progress. › Sync profiles across multiple devices, including cross-platform. ■ Built by Experts › Leading education experts from Harvard, Stanford, UC Berkeley, and Seoul National University. › Award-winning children mobile app designers. › Team was named co-winner of the Global Learning XPRIZE competition, a worldwide competition to have children teach themselves math and literacy skills. ■ Awards & Recognitions › #1 in the App Store (education category) in 20+ countries, including USA, China, the United Kingdom, Korea and Japan. › SIIA CODiE award finalist (2016). › Winner of the Parents’ Choice Award — Mobile App category (2015, 2018). › Awarded Best Design at the LAUNCH Education & Kids Conference (2013). › 5 out of 5 star rating from Common Sense Media. ■ Safety and Privacy › Todo Math complies with the US Children's Online Privacy Policy, does not contain any third party advertising, and can be played without an internet connection. ■ The Todo Math app that was serviced separately in the the Australian App Store has been unified with the global version. Please search for Todo Math in the App Store and install again. Log in with an existing account to continue where you left off. ■ Have questions? › Please check the FAQ on our website's help section (http://todomath.com/help). › You can get the fastest response by going to the website > Help > Contact Us or the in the Todo Math app > Parents Page > Help. ∙ ∙ ∙ We empower ALL children to learn independently.

About

WWF Free Rivers

Explore the vital role of rivers in ecosystems and human life through an interactive augmented reality experience. Manipulate river flows to understand the impact of dams and sustainable development, while collecting stories of the people and wildlife that depend on them.

Highlights
  • Interactive augmented reality river model
  • Simulate damming and sustainable development
  • Explore five distinct real-world habitats
  • Collect stories of people and wildlife
  • Learn about river threats and opportunities
Features
Read full description

WWF Free Rivers puts an entire landscape in your hands. Through this immersive, augmented reality experience, you’ll discover a river that flows through the lives of people and wildlife, and how their homes depend on those flows. Dam the river to see what happens, and then try different options for sustainable development that keeps the river healthy and flowing. Collect stories of people and animals along the way! Features • In-depth, educational storytelling experience for environmental science • Stunning, animated, augmented reality model users can interact with and learn from • Five distinct habitats based on real places: the Himalayan mountains, tropical jungles, African savannah, South American grasslands, and Southeast Asian deltas. • Opportunity to get involved and help protect rivers, and the people and wildlife that depend on them • An augmented reality map of the world’s rivers—and some of the biggest threats and opportunities they face.

Screenshots

Todo Math4 screens
WWF Free Rivers4 screens

Verdict

The call

The clearest difference is review sentiment: Todo Math at 74% against WWF Free Rivers's 31%. Todo Math also leads on rating (4.7 vs 3.6) and update cadence (every 3 weeks vs every 2 months). WWF Free Rivers's advantage is in-app purchases (none vs 10). On price, ads, device support and iOS requirement 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. Todo Math sells 6 one-off in-app purchases. WWF Free Rivers asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Todo Math holds the better App Store score, 4.7 against 3.6. That said, the two scores are not equally well evidenced: Todo Math has 1.1K ratings behind it against 151, so its average is the more settled of the two. Written reviews point the same way: 74% of Todo Math's written reviews are positive against 31% of WWF Free Rivers's.

UpkeepUpdate frequency

Todo Math ships an update every 3 weeks, WWF Free Rivers every 2 months. The most recent releases landed on October 21, 2026 and October 22, 2026 respectively.

Scorecard6 real differences · 4 level
Todo Math versus WWF Free Rivers: the parameters behind the verdict, then further details
ParameterTodo MathWWF Free Rivers
PriceFreeFree
Rating4.7 (1.1K ratings) — better3.6 (151 ratings)
Positive reviews73.9% of reviews — better31.2% of reviews
Number of ratings1.1K — better151
Update frequencyEvery 3 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.0 — better11.3
Further details — not scored
Size588 MB430 MB
Age rating4+4+
DeveloperEnuma, Inc.World Wildlife Fund

Customer experience

Todo Math

All ratings1,142 ratings
Positive92.4%
Neutral2.6%
Negative5.0%
Written reviews295 reviews
Positive73.9%
Neutral7.5%
Negative18.6%

WWF Free Rivers

All ratings151 ratings
Positive58.9%
Neutral11.9%
Negative29.1%
Written reviews141 reviews
Positive31.2%
Neutral9.9%
Negative58.9%

User reviews

Todo Math

From 1.1K App Store ratings

What we love

  • 👍 Engaging and educational math games
  • 🚀 Effective for learning math concepts
  • 💡 Customizable settings for different learning styles
  • 👍 Visually appealing and non-distracting graphics
  • 👍 Helpful for students with special needs

Room to improve

  • 🐛 Occasional crashes and bugs
  • 💰 Expensive subscription model
  • 🔒 Lack of transparency around subscription details
  • 🚫 Removal of free features in later versions

WWF Free Rivers

From 151 App Store ratings

What we love

  • 🎓 Excellent educational tool for teaching environmental concepts
  • 🎨 Beautiful graphics and visual design
  • 🔮 Innovative AR technology implementation
  • 🌍 Engaging way to learn about river ecosystems and conservation
  • 📱 Works well on newer devices (iPhone 13, iPhone X)

Room to improve

  • 🐛 Frequent crashes on launch and during gameplay
  • 📱 Poor compatibility with older devices (iPhone 6, iPad Mini 4)
  • 🔋 Causes significant device overheating
  • 📸 Difficult camera calibration and surface detection
  • 🎮 Limited interactivity and gameplay mechanics

Bugs and requests

Todo Math

Reported bugs

3 issues
  • Sound not working on some devices
  • Handwriting recognition issues
  • Progress reset after app updates

Requested features

5 requests
  • Expand content to higher grade levels
  • Add more languages and currency options
  • Improve progress tracking and reporting for parents
  • Introduce more personalization options
  • Provide offline access to content

WWF Free Rivers

Reported bugs

13 issues
  • App crashes immediately after launch or during intro
  • Black screen or freezing on opening screen
  • Camera fails to detect flat surfaces even in well-lit areas
  • AR map jumps and moves erratically during use
  • App becomes unresponsive after initial loading screen
Show 8 more
  • Sketchy cross appears on screen preventing progression
  • App closes after first narrative segment
  • Camera permission dialog not appearing properly
  • Loading screen hangs indefinitely
  • Incompatibility with iPad Air 2 and older iPad models
  • Device overheating causing performance issues
  • AR objects fail to render or appear as blue dots only
  • App locks up device requiring force restart

Requested features

12 requests
  • Non-AR version with traditional touch controls (pan, pinch, zoom)
  • Ability to build and destroy dams to see real-time effects
  • More interactive gameplay and user agency
  • Additional landscapes and environments to explore
  • Animated creatures with more natural behaviors
Show 7 more
  • Ability to reposition the AR table without restarting
  • Device rotation support during gameplay
  • Larger, more readable font sizes
  • Multiple language support
  • Underground/cave system exploration
  • More content and longer storytelling experience
  • Multiplayer or competitive elements

In-app purchases

6 purchases

Todo Math

One-time6
  • One Year Subscription$49.99
  • One Year Subscription2 variants$69.99
  • One Year Subscription2 variants$79.99
Show 3 more
  • Two Years Subscription$89.99
  • One Year Subscription2 variants$99.99
  • Two Years Subscription2 variants$119.99
None

WWF Free Rivers

No in-app purchases

Questions

Is Todo Math free?
Todo Math is free to download, with in-app purchases available.
Is WWF Free Rivers free?
WWF Free Rivers is free to download, with no in-app purchases.
Which has better reviews, Todo Math or WWF Free Rivers?
Todo Math is rated higher. Todo Math averages 4.7 out of 5 from 1.1K ratings, while WWF Free Rivers averages 3.6 from 151 ratings.
Do Todo Math or WWF Free Rivers have ads?
Neither Todo Math nor WWF Free Rivers shows ads.
Which is updated more often, Todo Math or WWF Free Rivers?
Todo Math ships an update every 3 weeks, and WWF Free Rivers every 2 months. Most recently, Todo Math was updated on October 21, 2026 and WWF Free Rivers on October 22, 2026.

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