Number Rack, by MLC vs CC Card Deck
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Number Rack, by MLC
This virtual manipulative tool helps children develop number sense through interactive bead groupings. It supports exploration of addition and subtraction strategies with customizable rows and colors. Ideal for elementary classrooms, it includes annotation and sharing features.
- 1-10 rows of 10 beads
- Resizable bead covers for subtraction
- Color-coded bead rows
- Annotation and drawing tools
- Math text and writing tools
- Shareable work via image or code
Read full descriptionHide full description
Number Rack facilitates the natural development of children’s number sense. The movable, colored beads encourage learners to think in groups of fives and tens, helping them to explore and discover a variety of addition and subtraction strategies. This virtual version of the manipulative is an open-ended educational tool, ideal for elementary classrooms and other learning environments. FEATURES • Display 1 to 10 rows of beads, 10 beads per row. • Hide beads with resizable covers, which allows teachers or learners to model subtraction or difference problems. • Reverse the colors of rows 6 to 10 to distinguish (or not) groupings of 25 beads. • Use the drawing tools to annotate work and show understanding. • Add equations, expressions, and descriptions with the math text and writing tools. • Share work by saving an image or providing a share code to others. Great for creating the initial setup of an activity, then sharing it with students so they can explore it further.
CC Card Deck
This app offers digital card decks for foundational reading skills instruction. It supports students in grades K-12, particularly those new to reading or struggling, to build confidence and fluency.
- Digital card decks
- Foundational skills instruction
- Supports SIPPS program
- Supports Being a Reader program
- K-12 reading support
Read full descriptionHide full description
The Collaborative Classroom Card Deck App is a tool for teachers that provides digital card decks for foundational skills instruction in both the SIPPS and Being a Reader programs. SIPPS and Being a Reader support new and struggling readers in grades K–12 build skills and confidence for fluent, independent reading.
Verdict
The clearest difference is review sentiment: Number Rack, by MLC at 100% against CC Card Deck's 0%. CC Card Deck's advantage is rating (4.8 vs 3.2) and update cadence (every 4 days vs every 25 months). On price, ads, in-app purchases and monetization model 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.
CC Card Deck holds the better App Store score, 4.8 against 3.2. That said, the two scores are not equally well evidenced: CC Card Deck has 243 ratings behind it against 9, so its average is the more settled of the two. Written reviews complicate that: 100% of Number Rack, by MLC's written reviews are positive against 0% of CC Card Deck's, so the app with the better star average is not the one people write more warmly about.
Number Rack, by MLC ships an update every 25 months, CC Card Deck every 4 days. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.
| Parameter | Number Rack, by MLC | CC Card Deck |
|---|---|---|
| Price | Free | Free |
| Rating | 3.2 (9 ratings) | 4.8 (243 ratings) — better |
| Positive reviews | 100.0% of reviews — better | 0.0% of reviews |
| Number of ratings | 9 | 243 — better |
| Update frequency | Every 25 months | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPad | iPad |
| Requires iOS | 14.7 — better | 15.0 |
| Further details — not scored | ||
| Size | 4 MB | 102 MB |
| Age rating | 4+ | 4+ |
| Developer | The Math Learning Center | Center for the Collaborative Classroom |
Customer experience
Number Rack, by MLC
CC Card Deck
In-app purchases
Number Rack, by MLC
No in-app purchases
CC Card Deck
No in-app purchases
Questions
Is Number Rack, by MLC free?
Is CC Card Deck free?
Which has better reviews, Number Rack, by MLC or CC Card Deck?
Do Number Rack, by MLC or CC Card Deck have ads?
Which is updated more often, Number Rack, by MLC or CC Card Deck?
Other comparisons
