Decimators

Paid#113 of 121 in Math Learning Apps

Decimators: A focused web app for adaptive arithmetic practice through gameplay. Ranked #113 of 121 in Math Learning Apps by our editors (3.0/10); pricing: Paid; best for basic game-based elementary arithmetic practice.

3.0/10★★☆☆☆Editor score

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At a glance

• Editor score
  3.0 / 10
• Pricing
  Paid
• Best for
  Basic game-based elementary arithmetic practice
• Free plan
  No
• Adaptive learning
  Yes
• Facts checked
  22 Sep 2026

• Where it wins

  • Adaptive difficulty keeps arithmetic practice responsive
  • Parent and educator portals support progress tracking
  • Game-based counting, addition, subtraction, and problem solving

• Where it doesn't

  • Covers a narrower range of math topics
  • Available only through a web browser
  • Paid access is required for full service use

Our verdict on Decimators

Decimators is a browser-based mathematics learning platform for children approximately 5–10 years old. It focuses on interactive, arcade-style practice in counting, addition, subtraction, and problem solving. Adaptive difficulty adjusts the math practice, while scoreboards and leaderboards add a competitive element. The product is designed for individual players, families, and educators who want elementary arithmetic practice with account management and progress tracking.

Pricing is organized around the type and number of learners. The Player plan provides full access for one player and includes a personal leaderboard. Parent plans support up to 2 or up to 5 children, with tools to manage children’s accounts and monitor learning progress. Educator plans cover up to 20, up to 50, or 100 students, and include an educator dashboard for tracking student progress. The published pricing starts at 40 ZAR, with prices stated in South African Rand. This structure gives families and schools a capacity-based route rather than one shared plan for every use case.

Its main strength is focus: Decimators turns foundational arithmetic into repeatable game practice and adds separate parent and educator views for monitoring learners. That makes it a practical fit for children who need counting, addition, subtraction, and basic problem-solving activities in a browser. The trade-off is equally clear. It is web-only and its subject coverage is concentrated on elementary arithmetic rather than a broader mathematics curriculum. Choose Decimators for game-based practice and progress visibility; choose a broader math learning product when learners need wider topic coverage or more varied instructional depth.

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Decimators pricing

All 6 Decimators plans and prices →

Decimators fact sheet

Alternatives to Decimators

• GeoGebraA broad, free math toolkit with practice and classroom tools, but not a full guided curriculum.9.3
• BrilliantA visual, self-paced way to build math and STEM problem-solving skills.9.2
• ReflexA focused web program for building elementary math fact fluency through adaptive practice.9.0

See all Decimators alternatives →

Featured on iTechGuides

Decimators is listed in our Math Learning Apps directory. Add the badge to your site — it links back to this page.

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Last updated 7 Oct 2026 · How we research and update