Comparison

LevelUp Reader vs Knock Knock

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

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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.

About

Knock Knock

Features
Read full description

Knock Knock is a simple and fun educational game designed for children aged 1–5. Children learn basic English words through playful sounds and interactions in a completely safe environment. • Designed for toddlers and preschoolers • Teaches basic English words • No ads, no in-app purchases • No data collection Perfect for parents who want a safe and engaging learning experience for their children.

Screenshots

LevelUp Reader3 screens
Knock Knock4 screens

Verdict

The call

The clearest difference is price: LevelUp Reader at Free against Knock Knock's $0.99. Knock Knock's advantage is update cadence (fortnightly vs monthly). On ads, 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

LevelUp Reader is free to download; Knock Knock costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

LevelUp Reader ships an update monthly, Knock Knock fortnightly. The most recent releases landed on September 28, 2026 and October 5, 2026 respectively.

Scorecard2 real differences · 8 level
LevelUp Reader versus Knock Knock: the parameters behind the verdict, then further details
ParameterLevelUp ReaderKnock Knock
PriceFree — better$0.99
Rating4.7 (24 ratings) — better—
Positive reviews75.0% of reviews—
Number of ratings24 — better—
Update frequencyMonthlyFortnightly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS14.0 — better15.0
Further details — not scored
Size112 MB11 MB
Age rating4+4+
DeveloperRosen Publishing Group, Inc.Izzet Ubeydullah Arpaci

In-app purchases

None

LevelUp Reader

No in-app purchases

None

Knock Knock

No in-app purchases

Questions

Is LevelUp Reader free?
LevelUp Reader is free to download, with no in-app purchases.
Is Knock Knock free?
Knock Knock costs $0.99, with no in-app purchases.
Do LevelUp Reader or Knock Knock have ads?
Neither LevelUp Reader nor Knock Knock shows ads.
Which is updated more often, LevelUp Reader or Knock Knock?
LevelUp Reader ships an update monthly, and Knock Knock fortnightly. Most recently, LevelUp Reader was updated on September 28, 2026 and Knock Knock on October 5, 2026.

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