Comparison

iWorld US Lite vs Addition Quest

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

Head to head
About

iWorld US Lite

This app introduces U.S. states and capitals through interactive games and puzzles. It uses a Montessori-inspired approach with self-correcting activities to foster independent learning for young children. Printable worksheets are also available for offline reinforcement.

Highlights
  • Interactive state and capital introductions
  • Quiz, puzzle, and labeling activities
  • Montessori 3-part lesson method
  • Self-correcting activities
  • Student-controlled challenge levels
  • Printable worksheets
Features
Read full description

iWorldGeography is used by schools, libraries, and families in 74 countries!!!! This FREE TRIAL includes 7 states in a fully functional version of iWorldGeography United States. Give it a try! Includes: Maine, Georgia, Michigan, North Dakota, Oklahoma, Nevada, and Washington. "Your iWorld apps were the first we found that we could endorse whole-heartedly … Thank you for your quality, real, Montessori apps." -- montessoritech.net Just like the full version of iWorldGeography United States, US Lite includes a Montessori 3-part-lesson [introduce, recall, reconstruct], plus labeling. Student-centered, self-correcting, independent work blends seamlessly with existing curriculum or stands alone for home use. Free worksheets can be printed for follow-up, physical-world activities at home or in the classroom. Available to all at TenSunInteractive.com - Extras. This introduction to United States and Capitals was designed by former Lead Developer at MIT's Center for Educational Computing Initiatives. Created for 6-to-9 year olds. Narrated by a child. United States includes an introduction to state names and capitals plus quiz, puzzle, and label activities … Content: • Active Intro - Touch any state to hear its name. • Passive Intro - Movie introduces each state name. • Quiz - Name is played. Touch any state to reveal answer. • Puzzle - Freely drag pieces to reconstruct map. • Label - Pins drag freely to label states and capitals. Features: • Self-Correcting Activities • Student-Controlled Manipulatives - pins & pieces drag freely on screen • Fresh Challenge - randomized content appears in a new order each time Student-Managed Options: Puzzle • "Grid" - scatters pieces to screen edges. • "Toss" - scatters pieces randomly across screen. • "Lines/No Lines" - toggle to work with or without outline. Labels • "Pass" - skips current label. • "Lightbulb" - toggles to show or hide control map. • Control visual-background information: • --- "Label" - color background, pin shows label only • --- "Color" - outline background, pin shows color only • --- "Label & Color" - outline background, pin shows label & color Learning Style: • Independent work • Self-correcting activities • Challenge increases as activities progress • Options allow students to manage challenge level and visual style • Children control navigation; never locked into an activity • No penalty for wrong answer; correct answer simply reinforced • No distracting bells and whistles • Worksheets support transition back to physical world activities TenSun puts children in charge of their learning by allowing them to control the challenge level and depth of their lesson. 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 Teacher & Parent screen to access printouts for additional color, trace, and label activities. Or, visit TenSunInteractive.com's Extras page. TWITTER NEWS Follow us on Twitter @tensuninteract for App, Update, and Online Extra alerts. FACEBOOK Follow TenSun Interactive on FaceBook. 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

Addition Quest

Features
Read full description

The Addition Quest app uses a grid to help students see the patterns in the addition table. This app challenges the player to find an intersection on a grid where the sum of the two addends equals the randomly selected number. Completing the activities by finding 10 correct answers. The Addition Quest app is designed to be a quick math exercise that teachers can use to provide practice with basic addition facts. It supports the elementary math curriculum. As students complete the activities they will discover number patterns in the addition table. Special sound effects make the game fun to use and the interactive design facilitates engagng learning strategies.

Verdict

The call

The clearest difference is device support: Addition Quest at 3 against iWorld US Lite's 1. Addition Quest also leads on iOS requirement (12.0 vs 26.4). On price, update cadence, 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

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 38 months. Both last shipped on November 6, 2026.

Scorecard2 real differences · 8 level
iWorld US Lite versus Addition Quest: the parameters behind the verdict, then further details
ParameteriWorld US LiteAddition Quest
PriceFreeFree
Rating5.0 (4 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings4 — better—
Update frequencyEvery 38 monthsEvery 38 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPadiPad, Mac, Apple TV — better
Requires iOS26.412.0 — better
Further details — not scored
Size18 MB34 MB
Age rating4+4+
DeveloperLynne BolducVentura Educational Systems

In-app purchases

None

iWorld US Lite

No in-app purchases

None

Addition Quest

No in-app purchases

Questions

Is iWorld US Lite free?
iWorld US Lite is free to download, with no in-app purchases.
Is Addition Quest free?
Addition Quest is free to download, with no in-app purchases.
Do iWorld US Lite or Addition Quest have ads?
Neither iWorld US Lite nor Addition Quest shows ads.
Which is updated more often, iWorld US Lite or Addition Quest?
iWorld US Lite ships an update every 38 months, and Addition Quest every 38 months. Most recently, iWorld US Lite was updated on November 6, 2026 and Addition Quest on November 6, 2026.

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