SpeakColors vs Stack Up
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SpeakColors
This iPad app helps young children with speech and language delays practice using two-word phrases with colors and objects. It features colorful photos and allows voice recording to build vocabulary and language skills.
- Two-word phrase practice
- Color and object vocabulary
- Voice recording
- Interactive photos
- Progressive language skills
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SpeakColors is an iPad app designed to encourage young children to imitate and use two word phrases with color words and common objects. The app is geared toward toddlers with speech and language delays, autism, Down syndrome and other developmental disorders. This motivating app increases vocabulary skills, phrase length, and receptive and expressive language. This lite version of SpeakColors contains 7 common colors and 100 colorful photographs of objects. Children can record their own voice to name colors, food, animals, toys, and common objects. "SpeakColors can do an excellent job of teaching words and sentence structure as a precursor to or in conjunction with other reinforcing hands-on multi-modality activities." ~ SpeechPathologyApps.com *** Free App of the Week in SpeechPathologyApps.com Newsletter (05/31/2012) *** Instructions: - From the main menu, press "Start". - Pick a color from the top of the screen. - Pick a sentence template from the upper-left of the screen. - Swipe left or swipe right (or use arrow buttons) to change objects. - Press a color or object in the middle of the screen to hear the name of the color or object. *** Includes In App Purchase to unlock features of the Full Version. *** *** Disclosure *** At RWH Technology we are committed to the privacy and safety of our customers and their children. This app: - Does not collect/share any user's personally identifiable information. - Does not contain Social Network Integration or Links to Social Media. - Does not contain ads. - Does not contain push notifications. - Does contain In-App-Purchase on a separate, parent oriented screen.
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.
- Arranging items by width
- Develops visual perception
- Teaches primary math concepts
- Progress tracking for educators
- Safe for children
- Simple and intuitive design
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- 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.
Verdict
The clearest difference is rating: Stack Up at 5.0 against SpeakColors's 2.5. Stack Up also leads on in-app purchases (none vs 1) and review sentiment (100% vs 67%). On price, ratings volume, ads and device support 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. SpeakColors sells 1 one-off in-app purchase. Stack Up asks for nothing beyond the download.
Stack Up holds the better App Store score, 5.0 against 2.5. Both are backed by a comparable volume of ratings — 4 and 6 respectively. Written reviews point the same way: 67% of SpeakColors's written reviews are positive against 100% of Stack Up's.
SpeakColors ships an update every 16 months, Stack Up every 2 months. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.
| Parameter | SpeakColors | Stack Up |
|---|---|---|
| Price | Free | Free |
| Rating | 2.5 (4 ratings) | 5.0 (6 ratings) — better |
| Positive reviews | 66.7% of reviews | 100.0% of reviews — better |
| Number of ratings | 4 | 6 — better |
| Update frequency | Every 16 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPad | iPad |
| Requires iOS | 17.6 | 7.0 — better |
| Further details — not scored | ||
| Size | 20 MB | 65 MB |
| Age rating | 4+ | 4+ |
| Developer | RWH Technology, LLC | STEP BY STEP |
Customer experience
SpeakColors
Stack Up
In-app purchases
SpeakColors
- Full Version$3.99
Stack Up
No in-app purchases









