Comparison

SENTENCE READING MAGIC 2 vs Stack Up

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

Head to head
About

SENTENCE READING MAGIC 2

This app helps emerging readers transition from single words to reading full sentences. It uses a Science of Reading approach with interactive games to build foundational literacy skills. The full version offers an extensive library of sentences and personalized learning options.

Highlights
  • Build sentence reading skills
  • Based on Reading Science
  • Interactive sentence games
  • High-frequency word focus
  • Progressive learning with multisyllable words
  • Extensive sentence library (full version)
Features
Read full description

Sentence Reading Magic 2- Unlock Sentence Reading Success! Unlock your child's reading adventure with Sentence Reading Magic 2! Designed with the proven Science of Reading, this engaging app expertly bridges the gap between reading single words and tackling full books, building confidence and essential skills in emerging readers. Is your little one ready to move beyond individual words but finding the leap to reading primers challenging? Sentence Reading Magic 2 provides a gradual, enjoyable, and highly effective pathway to sentence mastery. We focus on the crucial skill of reading sentences, the often-missing link in early literacy development. *Build Sentence Reading Skills: Master reading sentences with foundational CVC and CCVC/CVCC words. *Based on Reading Science: Integrates the 5 pillars of reading: Phonemic Awareness, Phonics, Vocabulary, Fluency, and Comprehension. *Interactive Fun: Four captivating sentence games make learning engaging and effective. *High-Frequency Word Focus: Five mini-games teach common high-frequency words using a phonetic approach for pattern recognition. *Progressive Learning: The final level introduces multisyllable words with closed syllables for continued growth. Upgrade to the full version of Sentence Reading Magic 2 for an even richer learning experience: 336 Sentences: Explore a vast library of sentences across 28 structured lessons. Personalized Learning: Customize with multiple sound and voice options, and three font choices. Master High-Frequency Words: Learn 36 essential irregular words, plus 100 regular pattern high-frequency words. Please note: Sentence Reading Magic 2 is most effective for children who can already consistently and easily read CVC and CCVC/CCVC short vowel words. The advanced level benefits children familiar with multisyllable words with closed syllables (e.g., basket, dentist, blanket). Created by a team of educators using proven methodologies like accelerated learning, Montessori principles, and the Science of Reading. Tested and loved by preschoolers and teachers! We are dedicated to providing the best learning experience. Your feedback and suggestions are highly valued as we continue to enhance Sentence Reading Magic 2. Give your child the magic key to reading fluency and comprehension! Download Sentence Reading Magic 2 today and watch their reading skills blossom!

About

Stack Up

This educational app helps children aged 2.5 and up learn to arrange items by width. It fosters visual perception and primary math skills through engaging, simple activities. Designed for young learners, it avoids distractions and offers progress tracking for educators.

Highlights
  • Arranging items by width
  • Develops visual perception
  • Teaches primary math concepts
  • Progress tracking for educators
  • Safe for children
  • Simple and intuitive design
Features
Read full description

- Full version. - No in-app purchases. - No ads. - Safe for kids. Welcome to “Stack Up”. This educational app is designed for children aged 2.5 and above. Here children can learn to arrange items bottom-up according to their width. It is fun, and it helps them develop visual perception skills, and primary math concepts. STEP BY STEP is a professional EdTech studio that focuses on developing educational apps for children aged 1 to 5 years old. During these critical years, children enter a new learning stage every few months. Our apps support and strengthen the development of crucial skills for each learning stage. This way we guide your children, step by step, throughout this entire age range. Our key values are perfection and simplicity. We believe that small details make a big difference, so we give great attention to every detail — both in content and design. Most importantly, we keep our apps simple — simple to understand and simple to use. While playing our games, children will engage in simple activities, such as matching, pairing, ordering, grouping, and sorting. This allows them to practice essential skills, such as: categorization, conceptualization, generalization, abstraction, memory, language, math, visual perception, fine motor, accuracy, attention, and focus. They will learn about shapes, colors, animals, fruit, vegetables, clothing, tools, vehicles, furniture, professions, toys, etc., — all while playing. The levels are generally arranged by difficulty. The first levels are usually quite simple — their main objective is to teach players critical thinking and problem solving. However, the exercises become increasingly challenging as the child advances within the game. Our applications avoid distractions such as popups, unnecessary animation, and noisy feedback. We keep our applications safe for children — no advertisements, no unsafe links to external content, no popups, etc. Furthermore, our experience indicates that our apps can be very helpful for children with special-needs¹, and that they can function as useful tools in both speech-language therapy² and in occupational therapy³. In addition, our apps have been found useful for adults with disabilities or dementia⁴. For this reason, we added two important features: the first one was designed for teachers, therapists, and speech pathologists, which allows them to track the progress of their students; the second feature makes our apps also accessible for users with disabilities, and on this matter we would like to thank the Technology Consulting Center at “Beit Issie Shapiro”⁵ for their professional guidance and consultation regarding accessibility. ________ ¹ Special needs - Learning difficulties due to learning disabilities, communication disabilities, emotional or behavioural disorders, physical disabilities and/or developmental disabilities, which may be caused by Autism (Autistic Spectrum Disorders), Down Syndrome, Dyslexia, Tourette Syndrome, etc. ² Speech-language therapy - Treatment of communication disorders by speech-language pathologists (SLP). ³ Occupational therapy (OT) - Treatment meant to develop, recover, or maintain daily living and work skills for people with a physical, mental or developmental condition. ⁴ Dementia -  A condition caused by brain injury (BI), brain damage or brain diseases, such as Alzheimer’s, Lewy bodies (DLB), Vascular dementia, etc. ⁵ "Beit Issie Shapiro" is a leading non-profit organization that develops therapies for people with disabilities, and also acts as a ‘Special Consultant’ to the United Nations.

Screenshots

SENTENCE READING MAGIC 24 screens

Verdict

The call

The clearest difference is rating: Stack Up at 5.0 against SENTENCE READING MAGIC 2's 3.9. Stack Up also leads on in-app purchases (none vs 1) and update cadence (every 2 months vs every 69 months). SENTENCE READING MAGIC 2's advantage is device support (3 vs 1). On price, review sentiment, ratings volume 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. SENTENCE READING MAGIC 2 sells 1 one-off in-app purchase. Stack Up asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Stack Up holds the better App Store score, 5.0 against 3.9. Both are backed by a comparable volume of ratings — 12 and 6 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

SENTENCE READING MAGIC 2 ships an update every 69 months, Stack Up every 2 months. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.

Scorecard6 real differences · 4 level
SENTENCE READING MAGIC 2 versus Stack Up: the parameters behind the verdict, then further details
ParameterSENTENCE READING MAGIC 2Stack Up
PriceFreeFree
Rating3.9 (12 ratings)5.0 (6 ratings) — better
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings12 — better6
Update frequencyEvery 69 monthsEvery 2 months — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod — betteriPad
Requires iOS157.0 — better
Further details — not scored
Size163 MB65 MB
Age rating4+4+
DeveloperPRESCHOOL UNIVERSITYSTEP BY STEP

Customer experience

SENTENCE READING MAGIC 2

All ratings10 ratings
Positive70.0%
Neutral20.0%
Negative10.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Stack Up

All ratings6 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

SENTENCE READING MAGIC 2

One-time1
  • Deluxe Upgrade$2.99
None

Stack Up

No in-app purchases

Questions

Is SENTENCE READING MAGIC 2 free?
SENTENCE READING MAGIC 2 is free to download, with in-app purchases available.
Is Stack Up free?
Stack Up is free to download, with no in-app purchases.
Which has better reviews, SENTENCE READING MAGIC 2 or Stack Up?
Stack Up is rated higher. SENTENCE READING MAGIC 2 averages 3.9 out of 5 from 12 ratings, while Stack Up averages 5.0 from 6 ratings.
Do SENTENCE READING MAGIC 2 or Stack Up have ads?
Neither SENTENCE READING MAGIC 2 nor Stack Up shows ads.
Which is updated more often, SENTENCE READING MAGIC 2 or Stack Up?
SENTENCE READING MAGIC 2 ships an update every 69 months, and Stack Up every 2 months. Most recently, SENTENCE READING MAGIC 2 was updated on November 1, 2026 and Stack Up on November 6, 2026.

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