Comparison

Puzzle 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

Puzzle

This app helps children learn to solve puzzles with a step-by-step approach. It offers various difficulty levels and puzzle shapes, with the ability to add custom images. Designed with educators, it develops logical reasoning, concentration, and motor skills.

Highlights
  • Step-by-step puzzle solving
  • 18 difficulty levels
  • Customizable image library
  • Develops logical reasoning
  • Improves motor skills
  • Shape and animal recognition
Features
Read full description

** This app is part of the AMIKEO suite ** == DESCRIPTION == Puzzle™ is a fun application designed to learn how to solve puzzles step by step! With more than 20 animal images at your disposal, Puzzle™ is the ideal application to accompany the first discovery of a puzzle, from the simplest square shape to the most complex Gruyère shapes. Designed in collaboration with teachers, specialized educators, speech-language pathologists and psychologists, the Puzzle™ application makes it possible to develop shape and animal recognition through a refined and intuitive interface adapted to beginners. Its playful progression system allows you to work on logical reasoning, concentration, motor skills and eye-hand coordination while having fun! NEW: Add your own images and renew the puzzles over and over again! The application contains: - 18 levels of difficulty - 2, 4, 6 and 9 piece puzzle tools - 2 different puzzle piece shapes - animations to motivate - an application content management menu to add/remove images from the application == AMIKEO SUBSCRIPTION == Puzzle™ is part of the AMIKEO subscription which will allow you to access the 10 AMIKEO applications for € 15.99 / month or € 169.99 / year without obligation. Are included in this subscription: - 10 applications of the AMIKEO by Auticiel suite - Unlimited customization of the contents of all applications - Access to new applications of the AMIKEO program, evolutions and updates - Dedicated Customer Support by phone or email - Monthly usage data sent by email == ABOUT AUTICIEL == Puzzle™ is an application published by Auticiel®, a French company specialized in the development of software solutions to promote the independence of children and adults with mental disabilities. We develop intuitive and fun mobile applications for communication, spatial temporal landmarks, social relations, etc. in order to promote social integration and school/job accessibility. All our applications are created and tested with users, their families and a scientific committee made up of professionals from the medical and educational sector (neuropsychologists, psychologists, speech therapists, specialized educators, etc.). == DISCOVER THE AMIKEO SUITE == - iFeel™, to express your emotions - Voice™, the mobile communication workbook - Autimo™, educational game to learn how to recognize emotions and facial expressions - Time in™, time timers to visualize the time that passes without even knowing the time - Logiral™, video player to slow down the image and sound of videos - ClassIt™, educational game to learn to identify, categorize and generalize! - Social Handy™, customizable quizzes to work on social interactions - Agenda™, simplified schedule - Sequences™, help with tasks More info: https://auticiel.com/applications/. == CONTACT == Website: auticiel.com Email: contact@auticiel.com Phone: 09 72 39 44 44 Privacy Policy: https://auticiel.com/amikeo/privacy_policy/ Terms of use: https://auticiel.com/amikeo/terms-of-use/

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

Puzzle4 screens

Verdict

The call

The clearest difference is review sentiment: Stack Up at 100% against Puzzle's 50%. Stack Up also leads on rating (5.0 vs 2.0) and in-app purchases (none vs 2). Puzzle's advantage is device support (3 vs 1). On price, update cadence 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. Puzzle sells 2 in-app purchases, starting at $12.99 per month. 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 2.0. That said, the two scores are not equally well evidenced: Stack Up has 6 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 50% of Puzzle's written reviews are positive against 100% of Stack Up's.

UpkeepUpdate frequency

Puzzle ships an update every 3 months, Stack Up every 2 months. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.

Scorecard7 real differences · 3 level
Puzzle versus Stack Up: the parameters behind the verdict, then further details
ParameterPuzzleStack Up
PriceFreeFree
Rating2.0 (1 ratings)5.0 (6 ratings) — better
Positive reviews50.0% of reviews100.0% of reviews — better
Number of ratings16 — better
Update frequencyEvery 3 monthsEvery 2 months — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemiumFree — better
DevicesiPhone, iPad, iPod — betteriPad
Requires iOS15.67.0 — better
Further details — not scored
Size53 MB65 MB
Age rating4+4+
DeveloperAUTICIELSTEP BY STEP

Customer experience

Puzzle

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

Stack Up

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

In-app purchases

2 purchases

Puzzle

Subscriptions2
  • Abonnement Amikeo14 Days trial$12.991 Month
  • Abonnement Amikeo14 Days trial$149.991 Year
None

Stack Up

No in-app purchases

Questions

Is Puzzle free?
Puzzle 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, Puzzle or Stack Up?
Stack Up is rated higher. Puzzle averages 2.0 out of 5 from 1 ratings, while Stack Up averages 5.0 from 6 ratings.
Do Puzzle or Stack Up have ads?
Neither Puzzle nor Stack Up shows ads.
Which is updated more often, Puzzle or Stack Up?
Puzzle ships an update every 3 months, and Stack Up every 2 months. Most recently, Puzzle was updated on November 1, 2026 and Stack Up on November 6, 2026.

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