Comparison

Blue vs Vocabity

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

Head to head
About

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.

Highlights
  • Step-by-step programming
  • Drag and drop interface
  • Repeat commands
  • 45-degree turns
  • Obstacle challenges
  • Customizable voice commands
Features
Read full description

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.

About

Vocabity

Features
Read full description

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

Blue4 screens
Vocabity4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 24, 2026 and October 20, 2026 respectively.

Scorecard1 real difference · 9 level
Blue versus Vocabity: the parameters behind the verdict, then further details
ParameterBlueVocabity
PriceFreeFree
Rating3.7 (7 ratings) — better—
Positive reviews42.9% of reviews—
Number of ratings7 — better—
Update frequencyEvery 3 monthsEvery 3 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.4 — better15.5
Further details — not scored
Size130 MB120 MB
Age rating4+4+
DeveloperTTS Group LimitedVOCABITY LTD

In-app purchases

None

Blue

No in-app purchases

None

Vocabity

No in-app purchases

Questions

Is Blue free?
Blue is free to download, with no in-app purchases.
Is Vocabity free?
Vocabity is free to download, with no in-app purchases.
Do Blue or Vocabity have ads?
Neither Blue nor Vocabity shows ads.
Which is updated more often, Blue or Vocabity?
Blue ships an update every 3 months, and Vocabity every 3 months. Most recently, Blue was updated on October 24, 2026 and Vocabity on October 20, 2026.

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