Blue vs Coding Express LEGO® Education
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Blue
This app allows children to create and execute algorithms for a robot. It offers step-by-step and drag-and-drop programming, with features like repeats and 45-degree turns. Challenge modes introduce obstacles and limited controls for added difficulty.
- Step-by-step programming
- Drag and drop interface
- Repeat commands
- 45-degree turns
- Obstacle challenges
- Customizable voice commands
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Blue-Bot is one of the many loved members of the TTS Floor Robot family. The Blue-Bot app enables you to write an algorithm, send it and then Blue-Bot will follow your instructions. There are numerous features, which make writing algorithms both fun and educational. Use explore mode to develop algorithms: Step by step programming. Drag and drop programming. Include repeats to add efficiency. Program 45 degree turns. Challenge mode will add complexity into the algorithm: Blue-Bot will add random obstacles, adding complexity to the algorithm needed One or even two directional buttons can be removed Children can also record themselves saying a command and can assign it to a button on Blue-Bot. As the algorithm progresses, they will hear themselves giving the instructions. Please note to control a Blue-Bot floor robot your device must have Bluetooth.
Coding Express LEGO® Education
This app introduces preschoolers to early coding concepts and 21st-century skills using a LEGO DUPLO train set. It offers four engaging activity areas: Journeys, Characters, Math, and Music, fostering problem-solving, collaboration, and creativity.
- Early coding concepts for preschoolers
- LEGO DUPLO train set integration
- Four activity areas: Journeys, Characters, Math, Music
- Develops sequencing, problem-solving, and collaboration
- Teacher guides and lesson plans included
- Supports social and emotional development
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All on board the Coding Express! Coding Express LEGO® Education introduces early coding concepts and 21st century skills to preschoolers. Using the popular LEGO® DUPLO® train set, teacher guide and an easy-to-use app, preschool teachers have all they need to teach early coding concepts. TEACHER QUOTES “I have never seen anything like Coding Express and I am very intrigued with its structure and the varying ways it can teach children specific skills they might not have gained through play before. I love its versatility and how the many different areas of play will keep most children occupied for a very long time.” Kate, preschool teacher, USA “Coding Express gives preschoolers a very different learning experience. Building different shapes with the train track helps them to understand the coding concept and combined with the educational activities and teacher material it makes early coding intuitive, fun and educational. The app enhances the experience and it gives the early learners more ways to learn about coding.” Wenting, pre-school and kindergarten teacher, China With the Coding Express app and LEGO® DUPLO® solution you will get: • 234 LEGO® DUPLO® bricks, including Push & Go train with lights and sounds, motor, color sensor, 5 color-coded action bricks, 2 railroad switches and 3.8 meters of train track • Teaching materials that includes 8 online lessons, introduction guide, poster, 3 building inspiration cards for building 12 unique models, 5 getting started activities and 8 simple video tutorials • Free app featuring 4 fun and educational activity areas, including: o Journeys: Explore destinations and traffic signs. Learn about the sequencing of events, making predictions, planning and problem solving. Characters: Support children’s social and emotional development. Children identify and examine the feelings of characters, considering the consequences for others. Math: Explore and understand how to measure, estimate distance and identify numbers. Music: Learn about sequencing and looping. Compose simple melodies, explore different animal and instruments sounds. • Key learning values include sequencing, looping, conditional coding, problem solving, critical thinking, collaboration, language and literacy, and expressing ideas with digital elements • Teaching solution and early coding toy for preschool children 2-5 years old; Developed using science, math and technology from the National Association for the Education of Young Children (NAEYC) and the 21st Century Early Learning Framework (P21 ELF) and the Head Start Early Learning Outcomes Framework. *** IMPORTANT*** This is not a standalone educational app. This app is used to program the LEGO® Education Coding Express set, which is sold separately. Please contact your local LEGO Education reseller for further information. Getting Started: www.legoeducation.com/codingexpress Lesson Plans: www.legoeducation.com/lessons/codingexpress Support: www.lego.com/service Twitter: www.twitter.com/lego_education Facebook: www.facebook.com/LEGOeducationNorthAmerica Instagram: www.instagram.com/legoeducation Pinterest: www.pinterest.com/legoeducation LEGO, the LEGO logo and DUPLO are trademarks and/or copyrights of the LEGO Group. ©2024 The LEGO Group. All rights reserved.
Screenshots
Verdict
The clearest difference is rating: Coding Express LEGO® Education at 4.2 against Blue's 3.7. Coding Express LEGO® Education also leads on ratings volume (250 vs 7). Blue's advantage is update cadence (every 3 months vs every 8 months) and device support (3 vs 1). On price, review sentiment, ads and in-app purchases 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.
Coding Express LEGO® Education holds the better App Store score, 4.2 against 3.7. That said, the two scores are not equally well evidenced: Coding Express LEGO® Education has 250 ratings behind it against 7, so its average is the more settled of the two. Written reviews point the same way: 43% of Blue's written reviews are positive against 50% of Coding Express LEGO® Education's.
Blue ships an update every 3 months, Coding Express LEGO® Education every 8 months. The most recent releases landed on September 24, 2026 and October 7, 2026 respectively.
| Parameter | Blue | Coding Express LEGO® Education |
|---|---|---|
| Price | Free | Free |
| Rating | 3.7 (7 ratings) | 4.2 (250 ratings) — better |
| Positive reviews | 42.9% of reviews | 50.0% of reviews — better |
| Number of ratings | 7 | 250 — better |
| Update frequency | Every 3 months — better | Every 8 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPad |
| Requires iOS | 12.4 — better | 15.0 |
| Further details — not scored | ||
| Size | 130 MB | 855 MB |
| Age rating | 4+ | 4+ |
| Developer | TTS Group Limited | LEGO Education |
Customer experience
Blue
Coding Express LEGO® Education
In-app purchases
Blue
No in-app purchases
Coding Express LEGO® Education
No in-app purchases
Questions
Is Blue free?
Is Coding Express LEGO® Education free?
Which has better reviews, Blue or Coding Express LEGO® Education?
Do Blue or Coding Express LEGO® Education have ads?
Which is updated more often, Blue or Coding Express LEGO® Education?
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