Duck Duck Moose Reading HD vs Number Frames, by MLC
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Duck Duck Moose Reading HD
This app offers a zoo-themed adventure to teach phonics and reading skills to young children. It features word and letter activities aligned with Common Core State Standards, along with a parent reporting tool to track progress. Developed with educators, it's designed for ages 3-7.
- Zoo-themed learning adventure
- Phonics and reading skill development
- Word and letter activities
- Common Core State Standards alignment
- Parent progress reporting tool
- Developed with educators
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An award-winning app based on Common Core State Standards, Duck Duck Moose Reading teaches phonics and reading skills in a fun zoo-themed adventure. With word and letter activities, kids learn by playing with flamingos, monkeys, lions and more. Keep track of progress through a new parent reporting tool. AWARDS: Parents’ Choice Gold Award; Children’s Technology Review Editor’s Choice Award. AGES: 3-7. PLAY CATEGORY: Early Learning/Curriculum ACTIVITIES 9 ACTIVITIES BASED ON COMMON CORE STANDARDS - Letter-sound and word activities - Recognizing and naming lowercase letters - Demonstrating knowledge of letter-sound correspondences - Isolating and pronouncing sounds in CVC (consonant-vowel-consonant) words WORDS & LETTERS: Teaches phonics through 9 different activities - Learn the letter sounds for all consonants, short vowels and long vowels - Practice spelling consonant-vowel-consonant (CVC) words PARENT REPORTING: Includes a new reporting tool so parents and teachers can see how a child is progressing DEVELOPED WITH EDUCATORS: - Developed in conjunction with Stanford University Educator, Jennifer DiBrienza, PhD in - Early Elementary Education and former NYC public school teacher (K-Grade 2) - Tested extensively in Kindergarten classrooms COMMON CORE STANDARDS: RF.K.1d, RF.K.2d, RF.K.2e, RF.K.3a, RF.K.3b ABOUT DUCK DUCK MOOSE (A wholly-owned subsidiary of Khan Academy) Duck Duck Moose, an award-winning creator of educational mobile apps for families, is a passionate team of engineers, artists, designers, and educators. Founded in 2008, the company has created 21 top-selling titles and has received 21 Parents’ Choice Awards, 18 Children’s Technology Review Awards, 12 Tech with Kids’ Best Pick App Awards, and a KAPi award for “Best Children’s App” at the International Consumer Electronics Show. Khan Academy is a nonprofit with a mission to provide a world-class education for anyone, anywhere. Duck Duck Moose is now part of the Khan Academy family. We rely on our community of volunteers and donors. Get involved today at www.duckduckmoose.com/about. Check out the Khan Academy app to learn and practice all kinds of topics for elementary school through college and beyond. We’d love to hear from you! Visit us at www.duckduckmoose.com or drop us a line at support@duckduckmoose.com.
Number Frames, by MLC
This app provides virtual number frames to help elementary students visualize and manipulate numbers up to one hundred. It supports counting, comparing, and computing, aiding the transition from one-by-one counting to more efficient strategies. Custom frames can be created for advanced visualization of factors and fractions.
- Standard and custom number frames
- Variety of counters and colors
- 5s grid for grouping emphasis
- Resizable covers for problem modeling
- Drawing and annotation tools
- Math text and writing tools
- Shareable work via image or code
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Number Frames help students structure numbers to five, ten, twenty, and one hundred. Students use the frames to count, represent, compare, and compute with numbers in a particular range. The frames allow students see quantities as equal groups of other quantities and in relation to benchmark quantities. This helps primary students move away from one-by-one counting toward more efficient ways of counting and computing. As students advance, custom frames can be constructed to help visualize factors, products, fractional parts and more. These virtual versions of number frames are open-ended educational tools, ideal for elementary classrooms and other learning environments that use iPads. Number frames are a key model used in Bridges in Mathematics, second edition. Online preview available at: www.mathlearningcenter.org/bridges FEATURES: • Use standard 5-, 10-, 20-, and 100-frames, or create custom frames up to 12 x 12. • Choose from a variety of counters and colors. Drag single counters — or stacks of 5 and 10 — into frames or on to the workspace. • Apply a 5s grid to frames to emphasize every 5th line and reinforce grouping by five. • Hide and reveal counters 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 Number Line resources and other apps, visit: www.mathlearningcenter.org/apps LEARN MORE To learn about Bridges in Mathematics, an elementary curriculum that employs visual models like number line, visit: www.mathlearningcenter.org/bridges/overview ABOUT US This resource is brought to you by The Math Learning Center, a nonprofit organization dedicated to K-12 education since 1976. ACKNOWLEDGEMENTS 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: www.clarity-innovations.com
Verdict
Duck Duck Moose Reading HD and Number Frames, by MLC both sit at 4.1 stars, but that hides the real split: 89% of Number Frames, by MLC's written reviews are positive against 43% of Duck Duck Moose Reading HD's. Duck Duck Moose Reading HD's advantage is ratings volume (30 vs 7) and iOS requirement (9.0 vs 15.4). On price, rating, update cadence and ads 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 4.1 for Duck Duck Moose Reading HD against 4.0 for Number Frames, by MLC. Both are backed by a comparable volume of ratings — 30 and 7 respectively. Written reviews are what separate them: 43% of Duck Duck Moose Reading HD's written reviews are positive against 89% of Number Frames, by MLC's.
Duck Duck Moose Reading HD ships an update every 11 months, Number Frames, by MLC every 13 months. The most recent releases landed on September 21, 2026 and September 16, 2026 respectively.
| Parameter | Duck Duck Moose Reading HD | Number Frames, by MLC |
|---|---|---|
| Price | Free | Free |
| Rating | 4.1 (30 ratings) — better | 4.0 (7 ratings) |
| Positive reviews | 43.5% of reviews | 88.9% of reviews — better |
| Number of ratings | 30 — better | 7 |
| Update frequency | Every 11 months — better | Every 13 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPad | iPad |
| Requires iOS | 9.0 — better | 15.4 |
| Further details — not scored | ||
| Size | 55 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | Duck Duck Moose LLC | The Math Learning Center |
Customer experience
Duck Duck Moose Reading HD
Number Frames, by MLC
In-app purchases
Duck Duck Moose Reading HD
No in-app purchases
Number Frames, by MLC
No in-app purchases
Questions
Is Duck Duck Moose Reading HD free?
Is Number Frames, by MLC free?
Which has better reviews, Duck Duck Moose Reading HD or Number Frames, by MLC?
Do Duck Duck Moose Reading HD or Number Frames, by MLC have ads?
Which is updated more often, Duck Duck Moose Reading HD or Number Frames, by MLC?
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