Teachley Subtractimals EDU vs LevelUp Reader
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Teachley Subtractimals EDU
This educational game uses engaging characters and strategies to teach subtraction to young students. It focuses on conceptual understanding and fact fluency, supporting intervention programs and differentiating instruction.
- Engaging subtraction strategies
- Conceptual understanding focus
- Fact fluency development
- Supports intervention programs
- Differentiates instruction
- Addresses Common Core Math Standards
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*Use your premium Teachley account login to unlock the app.* The sinister Professor Possum makes his return in Subtractimals. In this follow-up app to Addimals, students use subtraction strategies to help Memo, Patooey, and her cousin, Slurp stop his latest evil plan. Subtractimals EDU is the school version of an engaging game that teaches subtraction. The characters once again model strategies that children use to practice solving subtraction problems. Most fluency apps use drill-based approaches, such as digital worksheets, flashcards, and multiple choice. In contrast, Subtractimals focuses on teaching effective math strategies and scaffolds learning to promote conceptual understanding and fact fluency. Designed to support Response to Intervention programs, this app is a great tool for teachers looking to differentiate instruction for students. What are teachers saying? "Subtractimals builds on Addimal Adventure by providing kids with important strategies for learning subtraction. Our students love playing Teachley's apps and have greatly enhanced their addition and multiplication skills. We cannot wait to start using Subtractimals too!" - Cathy W., K-4 Instructional Technology Coordinator "Teachley's new app, Subtractimals is the perfect follow on to Addimal Adventure! This new subtraction app encourages the same deep mathematical thinking and grows with each student while guiding them in the process of subtraction." - Mauri Dufour, Kindergarten teacher and Apple Distinguished Educator Addresses many K-2nd grade Common Core Math Standards, including -K.OA.A.1 -K.OA.A.2 -K.OA.A.5 -K.NBT.A.1 -1.OA.A.1 -1.OA.B.3 -1.OA.B.4 -1.OA.C.5 -1.OA.C.6 -1.NBT.B.2 -2.OA.B.2 About Teachley: Teachley, LLC is an award-winning edtech company founded by expert teachers with PhDs in cognitive science and funded by the U.S. Department of Education and National Science Foundation. Teachley is transforming teaching and learning by using app data to help schools and districts drive instruction and target interventions. Based on cognitive science research, Teachley’s apps focus on teaching important strategies shown to improve learning within fun and engaging games. www.teachley.com *This app was made possible by the U.S. Department of Education, with funding provided by the Institute of Education Sciences’ SBIR program.
LevelUp Reader
This adaptive reading platform builds foundational literacy skills for young learners with a digital library of over 2,400 books. It offers interactive phonics activities, personalized bookshelves, and progress tracking for students in PreK-3.
- Adaptive digital library with 2,400+ books
- Interactive phonics activities and decodable books
- Personalized bookshelves based on interest and level
- Offline reading capabilities
- Progress monitoring and reporting
- ELA standards correlation
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Build Foundational Literacy Skills With a Customized Digital Library for Every Student LevelUp Reader is a robust adaptive reading platform for PreK-3 students. It is the ideal solution to foster growth—and a love of reading—in young learners at a critical time in their development. Supporting small group and whole class instruction as well as individualized practice, LevelUp Reader provides a personalized experience for every student, whether in class or at home! Reach Students Anywhere & Anytime LevelUp Reader seamlessly integrates digital instruction with real-world practice. It offers students both interactive online and printable activities to facilitate learning and encourage independent literacy growth. LevelUp Reader is simple for students, parents, and caregivers to use and even offers extra accessible tools for keeping readers engaged. Offline reading allows students to extend their learning without the need for continual online access. Library of Over 2,400 BooksThe LevelUp Reader library includes: ● Authentic fiction and nonfiction ● 650+ Spanish and bilingual texts ● Actor narration with text highlighting to model fluency ● Engaging interactive phonics activities and decodable books ● Adaptive personal libraries based on interest and reading levels State-of-the-Art Interactive Phonics Resource LevelUp Reader follows a complete scope and sequence of phonics skills, including units on emergent letter-sound correspondence, multisyllabic words, and more—all using 3D animation! The 250+ printable activities and writing practice sheets ensure mastery of these foundational skills. From “Learning to Read” to “Reading to Learn” Students have easy access to books at just the right reading level through their unique, personalized bookshelf. Teachers can assess comprehension of the text via quizzes and track students' mastery of skills and state standards. Evaluations Made Easy LevelUp Reader incorporates low-stakes progress monitoring assessments and provides intuitive reporting for analysis. By incorporating the Lexile® Framework for Reading, students can meet standard grade and age level benchmarks. Educators have access to online or downloadable reporting at a glance, plus the ability to drill down to over 100 data points at the district, school, class, and student levels. Find Titles Correlated to Your ELA Standards LevelUp Reader recognizes your specific state or region’s English Language Arts (ELA) standards. It removes the stress of aligning bookshelves and allows you to teach to students' individual needs. It's quick and easy to integrate LevelUp Reader into existing lesson plans. Teachers can filter over 2,400 authentic texts to find those that tie to a particular standard in their state and enrich their instruction. Digital Running Records Save Teacher Time While one-on-one running record assessments have been used in classrooms for many years, LevelUp Reader automates and enhances the process with a set of intuitive, easy-to-use digital tools based on unique text passages. Running records provide immediate feedback on students’ oral reading accuracy, comprehension, and fluency. Quick and easy to administer, LevelUp Reader running records help to identify the specific needs for each student so teachers can assign the necessary books and lessons to improve literacy. Engaging Student Gaming Environment LevelUp Land’s gaming environment maximizes student engagement without distracting from learning goals. Learners will be able to freely play and wander through an immersive 3D environment similar to today's most popular gaming platforms.
Screenshots
Verdict
The clearest difference is rating: Teachley Subtractimals EDU at 5.0 against LevelUp Reader's 4.7. LevelUp Reader's advantage is update cadence (monthly vs every 4 months) and ratings volume (24 vs 2). 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.
Teachley Subtractimals EDU holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: LevelUp Reader has 24 ratings behind it against 2, so its average is the more settled of the two.
Teachley Subtractimals EDU ships an update every 4 months, LevelUp Reader monthly. The most recent releases landed on October 16, 2026 and October 14, 2026 respectively.
| Parameter | Teachley Subtractimals EDU | LevelUp Reader |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | 4.7 (24 ratings) |
| Positive reviews | — | 75.0% of reviews |
| Number of ratings | 2 | 24 — better |
| Update frequency | Every 4 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 14.0 — better |
| Further details — not scored | ||
| Size | 120 MB | 112 MB |
| Age rating | 4+ | 4+ |
| Developer | Teachley | Rosen Publishing Group, Inc. |
Customer experience
Teachley Subtractimals EDU
LevelUp Reader
In-app purchases
Teachley Subtractimals EDU
No in-app purchases
LevelUp Reader
No in-app purchases
Questions
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