MAP Reading Fluency Testing vs Number Rack, by MLC
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MAP Reading Fluency Testing
This application enables K-5 students to take reading fluency assessments on an iPad. It measures oral reading fluency, foundational skills, and reading comprehension in a single, adaptive test. Teachers benefit from quick, automatic scoring and group testing capabilities.
- Oral reading fluency assessment
- Foundational skills measurement
- Reading comprehension testing
- Adaptive assessment
- Automatic scoring
- Group testing
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The MAP® Reading Fluency™ Testing app from NWEA® allows students to complete our K-5 MAP Reading Fluency assessments using an iPad®. The app is required for MAP Reading Fluency assessments on iPad devices. Quickly and accurately assess your K–5 readers. MAP® Reading Fluency™ enables teachers to efficiently measure oral reading fluency with an online, adaptive assessment. In addition to fluency, the test measures foundational skills and reading comprehension—all with one 20-minute assessment. Group testing and automatic scoring return valuable time to teachers.
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
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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.
Verdict
The clearest difference is update cadence: MAP Reading Fluency Testing at every 4 months against Number Rack, by MLC's every 25 months. MAP Reading Fluency Testing also leads on ratings volume (30 vs 9). Number Rack, by MLC's advantage is rating (3.2 vs 3.0) and iOS requirement (14.7 vs 17.0). 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.
Number Rack, by MLC holds the better App Store score, 3.2 against 3.0. Both are backed by a comparable volume of ratings — 30 and 9 respectively.
MAP Reading Fluency Testing ships an update every 4 months, Number Rack, by MLC every 25 months. The most recent releases landed on September 10, 2026 and June 24, 2026 respectively.
| Parameter | MAP Reading Fluency Testing | Number Rack, by MLC |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (30 ratings) | 3.2 (9 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 30 — better | 9 |
| Update frequency | Every 4 months — better | Every 25 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPad | iPad |
| Requires iOS | 17.0 | 14.7 — better |
| Further details — not scored | ||
| Size | 276 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | NWEA | The Math Learning Center |
Customer experience
MAP Reading Fluency Testing
Number Rack, by MLC
In-app purchases
MAP Reading Fluency Testing
No in-app purchases
Number Rack, by MLC
No in-app purchases
Questions
Is MAP Reading Fluency Testing free?
Is Number Rack, by MLC free?
Which has better reviews, MAP Reading Fluency Testing or Number Rack, by MLC?
Do MAP Reading Fluency Testing or Number Rack, by MLC have ads?
Which is updated more often, MAP Reading Fluency Testing or Number Rack, by MLC?
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