Comparison

iWorld Earth's Continents vs Understanding Math

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

Head to head
About

iWorld Earth's Continents

This educational app introduces young children to the names and locations of Earth's continents through interactive activities. It features self-correcting quizzes, puzzles, and labeling exercises designed for independent learning.

Highlights
  • Continent name introduction
  • Interactive quiz
  • Map puzzle activity
  • Labeling exercises
  • Self-correcting learning
  • Child-narrated content
Features
Read full description

iWorldGeography apps are used by schools, libraries, and families in 74 countries!!!! "Your iWorld apps were the first we found that we could endorse whole-heartedly … Thank you for your quality, real, Montessori apps." -- montessoritech.net   " ... the simplicity of the app means that children will be able to focus completely on the continents and they’ll definitely learn the material." -- theiPhoneMom.com "We love the simplicity of this app and the friendly navigation system. Little kids can virtually use this app on their own and figure it all out seamlessly." --TeachersWithApps.com ****************************************************************************** FREE OUTLINE MAPS & LABELS AVAILABLE ONLINE http://tensuninteractive.com/extras.html ****************************************************************************** An engaging introduction to Geography designed by former Lead Developer at MIT's Center for Educational Computing Initiatives. Created for 3-to-6 year olds, narrated by a child, Earth's Continents includes an introduction to continent names plus quiz, puzzle, and labeling activity … Content: • Active Intro - Touch any continent to hear its name. • Passive Intro - Movie introduces each continent name. Choose narrative or song. • Quiz - "Ask Me" to locate a continent. Option to repeat. Touch to reveal answer. • Puzzle - Drag pieces to reconstruct map. • Labeling - Pin drags freely to label continent. Features:  • Self-Correcting Quiz - answer fades in; audio reinforces; no wrong-answer penalty  • User-Controlled Manipulatives - pins and puzzle pieces drag freely around screen  • Fresh Challenge - questions, labels, and puzzle pieces appear in different order each time • Puzzle - Pieces disburse around screen edges; touch Toss button to scatter randomly.  • All Labels --  • --- Pass - touch Pass button to skip a label versus peek at control map  • --- Control maps - touch lightbulb to see answer highlighted; others dimmed  Learning Style:  • Challenge increases as activities progress  • Children control the app's navigation; never locked into an activity  • Touch Puzzle and Label buttons within activity to restart.  • No penalty for a wrong answer  • Correct answers simply reinforced  • No distracting bells and whistles  TenSun puts children in charge of their learning by allowing them to control the challenge level and depth of their lesson. There is no penalty for a wrong answer. The correct answer is simply reinforced. As a result, activities are self-correcting. Children are free to work independently, in a small group, or with the help of a supervising adult at home or in the classroom. ONLINE MAPS AND LABELS Touch Classroom Printouts button on app's title screen to access printouts for additional color, trace, and label activities. TWITTER NEWS Follow us on Twitter @tensuninteract for App, Update, and Online Extra alerts. EDUCATION PRICING 50% discount for 20+ apps with Apple's Volume Discount Program for Education EDUCATIONAL NOTE iWorldGeography colors match American Montessori Society classroom materials. iWorldGeography Series blends self-correcting, child-directed-activity design with Geography curriculum used in Montessori Children's House and Lower Elementary classrooms. Concept and visual design is thoughtfully integrated to supplement existing curriculum and classroom materials. The series was inspired by 3-year's observation in Lexington (MA) Montessori School Children's House classrooms where MyWorld, TenSun's desktop-based version of this series, has been used since 2004.

About

Understanding Math

This educational app helps children learn to tell time with interactive games and activities. It features voice recording, adjustable difficulty, and progress tracking for parents and teachers. Designed to align with Common Core Math Standards, it offers a fun and engaging way to master time-telling skills.

Highlights
  • Voice recording for time recitation
  • Interactive learning clock mechanics
  • Setting analog and digital clocks
  • Calculating periods of time
  • Self-motivating timer function
  • Progress tracking for parents/teachers
  • Aligned with Common Core Math Standards
Features
Read full description

"Understanding Maths - Telling Time" is perfect for kids just learning to mark time, and also sophisticated enough for older students. The features include being able to record a child’s voice in telling the time, and the gentle scaffolding of the needed skills to help a child learn how to set the hands of the clock and how to do maths when calculating periods of time. Play is intuitive and the reinforcers keep kids engaged as it allows kids to advance at their own pace. Teachers and parents will appreciate the ability to collect data, check progress, and adjust difficulty as a child gains mastery. ***** Children´s Technologie Review Editor´s Choice 2016 CTR review: "Why we like it: Clean, structured teaching methods come to your iPad's screen, with this excellent time-telling tutorial that is ideal for early elementary classrooms." On opening, there are 6 mini units or games that are aligned to the U.S. Common Core Mathematics Standards. The Learning Clock The Learning Clock starts at the beginning by familiarizing children with the clock mechanics. It introduces the hour and minute hands, and how the clock is “set” to tell time. By using the cogwheel button that is located on top, kids can record their own voice in reciting the time. Using a local accent or having kids making up one of their own is tons of fun. Hearing their own voice helps to make the lessons stick by pulling in multisensory systems from the body. Touching the minute hand (or the second hand) on the face of the clock will display the minutes up to 60, bringing in strong bold and consistent visual prompts. Setting the Analog Clock In unit/game 2, turn the hands of the analog clock so that they match the time shown on the digital clock. This is easily said but also difficult for some children to master. Thoughtful visual prompts of using consistently in color alignment of the hour and minute hands throughout the app, help provide structure for retaining information. The tasks automatically become more difficult. Setting the digital clock In unit/game 3, by turning the hands of the digital clock kids match the time shown on the analog clock. Although seemingly similar to game 2, it is a subtle shift of increasing the difficulty to becoming more independent in telling time. Periods of Time In game/unit 4, children must project a mindset of how time passes to set the time on the clock according to the instructions on top. It is a beginning of interplay of past and future that helps “set” creative play and thought in motion. Timer The timer is a learning and play piece that is self-motivating and driven. Open experimentation with time on times frames for beginning and ending a task is explored. Teachers and parents can also use this as a countdown device, or simply for the fun of…”Can we walk from one hall to the next in 2 minutes?” My Clock My clock is an open playground for exploration of time. By winning 3 stars in games 2, 3, and 4; kids earn different time pieces. When playing as a class, it’s fun to compare how far you’ve gotten in the game and what clocks you’ve won. Playing only reinforces the concepts and practical life skills of telling time. appp media takes a child’s privacy and online safety very seriously. • no links to websites outside the app without a gate • no ads • no data collection or tracking • no social media sharing • no in-app purchases For detailed information on our privacy policy, visit www.apppmedia.com ––––––––––––––––––––––––––––––––––––––––––––––––––––– KNOW WHAT'S INSIDE As a MOMs with Apps member, we follow the "Know what's inside" best practices for kids’ apps –––––––––––––––––––––––––––––––––––––––––––––––––––––

Screenshots

Understanding Math4 screens

Verdict

The call

iWorld Earth's Continents and Understanding Math both sit at 5.0 stars, but that hides the real split: 100% of Understanding Math's written reviews are positive against 86% of iWorld Earth's Continents's. Understanding Math also leads on update cadence (every 4 months vs every 10 months) and device support (3 vs 1). iWorld Earth's Continents's advantage is price ($2.99 vs $3.99). On rating, ratings volume, ads and in-app purchases 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

iWorld Earth's Continents costs $2.99 and Understanding Math $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for iWorld Earth's Continents against 5.0 for Understanding Math. Both are backed by a comparable volume of ratings — 2 and 3 respectively. Written reviews are what separate them: 86% of iWorld Earth's Continents's written reviews are positive against 100% of Understanding Math's.

UpkeepUpdate frequency

iWorld Earth's Continents ships an update every 10 months, Understanding Math every 4 months. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.

Scorecard5 real differences · 5 level
iWorld Earth's Continents versus Understanding Math: the parameters behind the verdict, then further details
ParameteriWorld Earth's ContinentsUnderstanding Math
Price$2.99 — better$3.99
Rating5.0 (2 ratings)5.0 (3 ratings)
Positive reviews85.7% of reviews100.0% of reviews — better
Number of ratings23 — better
Update frequencyEvery 10 monthsEvery 4 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPadiPhone, iPad, iPod — better
Requires iOS26.46.0 — better
Further details — not scored
Size35 MB43 MB
Age rating4+4+
DeveloperLynne Bolducappp media UG

Customer experience

iWorld Earth's Continents

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews7 reviews
Positive85.7%
Neutral14.3%
Negative0.0%

Understanding Math

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews9 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

iWorld Earth's Continents

No in-app purchases

None

Understanding Math

No in-app purchases

Questions

Is iWorld Earth's Continents free?
iWorld Earth's Continents costs $2.99, with no in-app purchases.
Is Understanding Math free?
Understanding Math costs $3.99, with no in-app purchases.
Which has better reviews, iWorld Earth's Continents or Understanding Math?
iWorld Earth's Continents and Understanding Math are both rated 5.0 out of 5 on the App Store, from 2 and 3 ratings respectively.
Do iWorld Earth's Continents or Understanding Math have ads?
Neither iWorld Earth's Continents nor Understanding Math shows ads.
Which is updated more often, iWorld Earth's Continents or Understanding Math?
iWorld Earth's Continents ships an update every 10 months, and Understanding Math every 4 months. Most recently, iWorld Earth's Continents was updated on November 1, 2026 and Understanding Math on November 2, 2026.

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