Blue vs Vocabity
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.
Vocabity
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The language learning app for visual learners. Master vocabulary with high-quality images and realistic contexts, improving your recall and retention through visual association. Target exactly the words you need to learn for your next test or exam, and our spaced repetition algorithm will make sure that you're prepared for it. Immersive reading, writing, speaking and listening practice, with varied real-world images or even your camera. Track your progress with your personalised visual dictionary, experience points, achievements, and more.
Screenshots
Verdict
The clearest difference is iOS requirement: Blue at 12.4 against Vocabity's 15.5. On price, update cadence, 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.
Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 24, 2026 and October 20, 2026 respectively.
| Parameter | Blue | Vocabity |
|---|---|---|
| Price | Free | Free |
| Rating | 3.7 (7 ratings) — better | — |
| Positive reviews | 42.9% of reviews | — |
| Number of ratings | 7 — better | — |
| Update frequency | Every 3 months | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.4 — better | 15.5 |
| Further details — not scored | ||
| Size | 130 MB | 120 MB |
| Age rating | 4+ | 4+ |
| Developer | TTS Group Limited | VOCABITY LTD |
In-app purchases
Blue
No in-app purchases
Vocabity
No in-app purchases









