Comparison

Geoboard, by MLC vs Materrium

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

Head to head
About

Geoboard, by MLC

Explore mathematical concepts like perimeter, area, and fractions by stretching virtual bands around pegs to form shapes. This open-ended educational tool is ideal for elementary and middle school learners, offering multiple board types and drawing tools for interactive discovery.

Highlights
  • Create line segments and polygons
  • Multiple board types (square, rectangular, circular)
  • Shape duplication and transformation
  • Fill shapes with transparent color
  • Display grid lines with numbering
  • Drawing and annotation tools
  • Save and share work
Features
Read full description

Geoboard is a tool for exploring a variety of mathematical topics introduced in the elementary and middle grades. Learners stretch bands around the pegs to form line segments and polygons and make discoveries about perimeter, area, angles, congruence, fractions, and more. This virtual version of the manipulative is an open-ended educational tool, ideal for elementary classrooms and other learning environments. FEATURES • Create line segments and polygons by stretching bands around the Geoboard’s pegs. • Choose from 8 different band colors. • Fill individual shapes with a transparent color, or use the Fill All button to toggle all the bands between filled and unfilled. • Switch between the standard 25-peg square board, a rectangular board with 150 pegs, or a circular board with 13 pegs. The circular board enables explorations with angles, fractions, and time measurement. • Duplicate shapes then move, rotate, or flip them to explore symmetry and congruency. • Change the color of selected bands. • Display grid lines with or without numbering to more easily calculate area and identify shape locations. •Hide and reveal work with resizable covers to create your own problems and model strategies. • Use the drawing tools to annotate work and show understanding. • Add equations, expressions, and descriptions with the math text and writing tools. • Share your work by saving an image or providing a share code to others. MORE APPS For more Geoboard resources and other apps, visit:www.mathlearningcenter.org/apps LEARN MORE To learn about Bridges in Mathematics, an elementary curriculum that employs visual models such as the geoboard, please visit: www.mathlearningcenter.org/bridges/overview ABOUT US This app is brought to you by The Math Learning Center, a nonprofit organization dedicated to K-12 math education since 1976. ACKNOWLEDGEMENTS The Geoboard app was made possible by a generous donation from Dr. David Moursund. This app was crafted by Clarity Innovations. We help improve teaching and learning by creating solutions that match promising technologies with the needs of education.  Visit us at: www.clarity-innovations.com

About

Materrium

Features
Read full description

The Fun Atom & Chemistry Lab for Kids and Curious Minds! Materium turns atomic science and chemistry into an intuitive, playful puzzle adventure! From water to table salt, from lithium to gold, combine elements, synthesize real molecules, and journey from a curious explorer to a Legendary Master Alchemist! KEY FEATURES: 20 Engaging Chemistry Puzzle Missions Drag and merge atoms into matching valence slots to create molecules like Water (H₂O), Methane (CH₄), Carbon Dioxide (CO₂), and more. Learn how valence electrons and chemical bonds work through play! NEW: Hands-On Atom Builder Step into the subatomic realm! Place protons and neutrons into the nucleus, position electrons on their Bohr energy shells, and synthesize stable atoms while discovering their real-world atomic numbers. Dream Lab (Creative Sandbox) Zero rules, pure curiosity! Experiment freely by mixing any elements on your laboratory workbench to discover hidden compounds and unexpected reactions. Interactive Periodic Table Museum Explore the chemical elements grouped by category: Alkali Metals, Noble Gases, Halogens, and Non-Metals. Uncover their everyday superpowers, atomic structures, and fun facts. Daily Quiz Wheel Test your elemental knowledge with 5 fun daily questions. Maintain your learning streak and earn scientific trophies! Alchemist Certificate & Diploma Celebrate your milestone achievements! Generate and share your official high-resolution Alchemist Diploma complete with your rank, discovery count, and badges. KID-FRIENDLY & SAFE: - Intuitive, vibrant, and tactile design tailored for young learners and students. - Optional one-time Remove Ads purchase for an uninterrupted, distraction-free environment. - Privacy-first: No tracking or collection of personal data. Ignite your love for science. Download Materium and start synthesizing the universe today!

Screenshots

Materrium4 screens

Verdict

The call

The clearest difference is ads: Geoboard, by MLC at none against Materrium's shown. Materrium's advantage is update cadence (every 2 months vs every 39 months). On price, in-app purchases, 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Geoboard, by MLC ships an update every 39 months, Materrium every 2 months. The most recent releases landed on October 5, 2026 and October 15, 2026 respectively.

Scorecard2 real differences · 8 level
Geoboard, by MLC versus Materrium: the parameters behind the verdict, then further details
ParameterGeoboard, by MLCMaterrium
PriceFreeFree
Rating3.9 (17 ratings) — better—
Positive reviews81.3% of reviews—
Number of ratings17 — better—
Update frequencyEvery 39 monthsEvery 2 months — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree—
DevicesiPadiPhone, iPad — better
Requires iOS16.0 — better17.0
Further details — not scored
Size5 MB17 MB
Age rating4+9+
DeveloperThe Math Learning CenterVOLKAN TEZKAN

In-app purchases

None

Geoboard, by MLC

No in-app purchases

None

Materrium

No in-app purchases

Questions

Is Geoboard, by MLC free?
Geoboard, by MLC is free to download, with no in-app purchases.
Is Materrium free?
Materrium is free to download, with no in-app purchases.
Do Geoboard, by MLC or Materrium have ads?
Materrium shows ads; Geoboard, by MLC does not.
Which is updated more often, Geoboard, by MLC or Materrium?
Geoboard, by MLC ships an update every 39 months, and Materrium every 2 months. Most recently, Geoboard, by MLC was updated on October 5, 2026 and Materrium on October 15, 2026.

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