Comparison

Romo vs BLExAR

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

Head to head
About

Romo

Embark on an intergalactic adventure with a robotic companion. Train your robot through engaging missions, develop its environmental awareness, and compete in a thrilling space race. Explore new worlds and experience the environment through your robot's eyes.

Highlights
  • Intergalactic robot training missions
  • Wheel control and autonomous exploration
  • Environmental awareness development
  • Robot Space Race competition
  • Explore three planetary worlds
  • Robot's-eye view with Romo Control
  • Creative testing in The Lab
Read full description

Embark on an Intergalactic Adventure with Romo! Prepare for liftoff as your very own Romo robot touches down on Earth, ready to train for the ultimate cosmic challenge - the Robot Space Race! This isn't just any app; it's a gateway to an immersive, hands-on robotic experience that blends cutting-edge technology with playful learning. Mission Objectives: Guide Romo through a series of engaging training missions Master wheel control and autonomous exploration Develop Romo's environmental awareness and object recognition Compete in the thrilling Robot Space Race on your custom-built track Explore Three Planetary Worlds: Unlock a universe of possibilities with three distinct planets, each filled with unique missions and three special activity comets. Watch as Romo evolves from a curious newcomer to a skilled space explorer! Romo Vision: Experience the world through Romo's eyes! Use another iOS device with Romo Control for an immersive, robot's-eye view of your surroundings. The Lab: Unleash your creativity in The Lab, where you can put all of Romo's trained intelligence to the test. The only limit is your imagination! Device Compatibility: Supports iOS versions up to iOS 18 Compatible with a wide range of iPhones and iPod Touch models, old and modern Optimized for Romo 3A, 3B, and 3L For optimal video streaming use a device with A9 CPU or newer (iPhone SE or newer) iOS 9 and iOS 10 users: In order to download Romo, you need to purchase it on a modern iPhone and then on your old device open the App Store app, go to Updates->Purchased->Not on This iPhone->Romo and tap on the Download (cloud) icon. You will get a prompt to "download the last compatible version". Important Note: This app requires the Romo hardware accessory, available for purchase online. Join the ranks of intergalactic robot trainers and prepare your Romo for the adventure of a lifetime. Download now and let the cosmic journey begin!

About

BLExAR

This app enables iOS devices to communicate with Arduino boards via Bluetooth Low Energy. It allows real-time control of Arduino pins, data logging with GPS coordinates, and serial text communication for makers and students.

Highlights
  • Real-time control of Arduino digital and analog pins
  • Real-time data plotting
  • Data logging to CSV files
  • Capture GPS coordinates for data points
  • Serial text communication terminal
Features
Read full description

BLExAR turns your iPhone or iPad into a pocket bench instrument for Arduino-class boards over Bluetooth Low Energy. Connect to a board with an HM-10 style UART module (CC2541, AT-09, JDY-08, SH-M08), an nRF52840 MakerBLE board or a Seeed XIAO ESP32-C6, then switch pins, stream sensor values, plot and record them, all without writing an app of your own. BLExAR 3.0 is a complete rewrite that keeps working with the sketches and tutorials written for earlier versions: the same commands, the same pins and the same CSV files. CONTROL • Switch digital pins and set PWM from pin tiles laid out like your board's header • Analog sliders for the A-pins • Board profiles for Arduino Uno, Arduino Nano, MakerBLE (nRF52840), Seeed XIAO ESP32-C6 and the classic 2.7 layout • TX/RX activity lights show every message to and from the board DATA • Live chart of the comma-separated values your board sends, with Run/Hold and 10 s, 1 min and 10 min windows • Readout cards with min, max and standard deviation for each series, plus the incoming stream rate • Record sessions to CSV, optionally with your location on each row, and keep recording in the background • Browse, reopen and share recorded sessions; they also appear in the Files app CONSOLE • Serial terminal to send and receive text, with a hex view and quick command keys PANELS • Build your own control dashboards with buttons, toggles, sliders, a joystick and gauges bound to your board's commands and data columns • Share panels with others as files ALWAYS AT HAND • Live Activity on the Lock Screen and in the Dynamic Island while connected or recording • Control Center controls to toggle a pin without opening the app • Scan list puts UART-ready boards first, ordered by signal strength • Automatic reconnect after a dropped link • Light and dark appearance and Dynamic Type BLExAR is made for makers, students, teachers and engineers. Tutorials and example sketches are at makersportal.com.

Screenshots

Romo4 screens
BLExAR4 screens

Verdict

The call

The clearest difference is rating: Romo at 4.6 against BLExAR's 4.0. Romo also leads on update cadence (monthly vs every 3 months) and iOS requirement (12.0 vs 17.0). BLExAR's advantage is price ($4.99 vs $11.99). On review sentiment, ratings volume, 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

Romo costs $11.99 and BLExAR $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Romo holds the better App Store score, 4.6 against 4.0. Both are backed by a comparable volume of ratings — 21 and 14 respectively. Written reviews point the same way: 78% of Romo's written reviews are positive against 75% of BLExAR's.

UpkeepUpdate frequency

Romo ships an update monthly, BLExAR every 3 months. The most recent releases landed on October 8, 2026 and October 13, 2026 respectively.

Scorecard4 real differences · 6 level
Romo versus BLExAR: the parameters behind the verdict, then further details
ParameterRomoBLExAR
Price$11.99$4.99 — better
Rating4.6 (21 ratings) — better4.0 (14 ratings)
Positive reviews77.8% of reviews — better75.0% of reviews
Number of ratings21 — better14
Update frequencyMonthly — betterEvery 3 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPodiPhone, iPad
Requires iOS12.0 — better17.0
Further details — not scored
Size371 MB4 MB
Age rating4+4+
DeveloperNavideck Labs OUMaker Portal LLC

Customer experience

Romo

All ratings21 ratings
Positive90.5%
Neutral4.8%
Negative4.8%
Written reviews9 reviews
Positive77.8%
Neutral11.1%
Negative11.1%

BLExAR

All ratings14 ratings
Positive71.4%
Neutral7.1%
Negative21.4%
Written reviews12 reviews
Positive75.0%
Neutral0.0%
Negative25.0%

In-app purchases

None

Romo

No in-app purchases

None

BLExAR

No in-app purchases

Questions

Is Romo free?
Romo costs $11.99, with no in-app purchases.
Is BLExAR free?
BLExAR costs $4.99, with no in-app purchases.
Which has better reviews, Romo or BLExAR?
Romo is rated higher. Romo averages 4.6 out of 5 from 21 ratings, while BLExAR averages 4.0 from 14 ratings.
Do Romo or BLExAR have ads?
Neither Romo nor BLExAR shows ads.
Which is updated more often, Romo or BLExAR?
Romo ships an update monthly, and BLExAR every 3 months. Most recently, Romo was updated on October 8, 2026 and BLExAR on October 13, 2026.

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