# BLExAR — Bluetooth + Arduino > iOS app for Arduino control and data logging via Bluetooth Low Energy. (iPhone/iPad app by Maker Portal LLC.) - Source: https://appshunter.io/ios/app/blexar/id1439459314 (this page in markdown: same URL + `.md`) - Developer: [Maker Portal LLC](https://appshunter.io/developer/1439459313) - Category: Education, Lifestyle - Price: $3.99 - Rating: 4.00/5 from 14 App Store ratings · 12 written reviews indexed - Age rating: 4+ - Requires: iOS 14.0 · 25 MB - Languages: American English - Released: 2018-10-24 - Data updated: 2026-08-20 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/blexar/id1439459314/reviews.md ## What is BLExAR? BLExAR is an integrated app that uses Bluetooth Low Energy to convert an Arduino board into an iOS-compatible device. BLExAR allows the iOS user to control all digital and analog pins on most Arduino-based boards using just a CC2541 (HM-10, AT-09, JDY-08, SH-M08) Bluetooth board. Some features include: real-time control of all Arduino pins, data plotting in real time, data logging to a comma-separated file, capturing GPS coordinates of data points, and serial text communication using a terminal window. The BLExAR app is intended for makers, students, and engineers interested in communicating between their Arduino and smartphone, whether for hobby or professional purposes. The app allow users to interact with their Arduino board, but also receive data from sensors and log precise measurements in time and space with GPS coordinates. ## Key features - 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 ## Recent user reviews (10 of 12) All indexed reviews: https://appshunter.io/ios/app/blexar/id1439459314/reviews.md ### 5/5 — I-phone control for Arduino works easily *2023-11-29* Of the many ble applications I have tried, this one is the clear winner: It works easily, had good web support and allows to plot sensor data and save as csv while also allowing to control the boards inputs. Used Hm10 and uno but needed to fiddle a bit ti understand some basics of serial communication. Could do with one more basic example. ### 5/5 — Outstanding App *2021-07-01* Great app for using BLE with an Arduino. Good function set allowing direct control of I/O channels, messaging back and forth through a console, and the ability to download data from the arduino, plot it, and email it as a text file. Great customer support! ### 1/5 — Worked for one day *2021-06-14* It opens but crashes when I try to do anything with it. $4 wasted. **Developer response:** Sorry to hear about the trouble. This may be a permissions issue that we often see. Please email us and we can help fix the issue you are experiencing. ### 5/5 — FINALLY *2021-02-15* An app that has Bluetooth Arduino capabilities! Make sure to add your email in the mail app to receive data. Support team was an amazing help for any issues. ### 1/5 — Don’t buy *2021-01-24* No custom functionality. Everything that’s built into the app works. However, so does every other free app on the market. Don’t waste your money like I did. **Developer response:** Any constructive criticism in relation to your review would be helpful in improving the app and its functionality. ### 5/5 — Great app for serial logging *2021-01-10* After trying out several different BLE apps I was finally able to view and log serial data from my arduino. Easily saves the data to a csv file and sends to an email address. Perfect and easy. Great technical support as well! Highly recommend. ### 5/5 — Fantastic functionality and better support *2021-01-04* All around great experience using this app. Seamlessly integrated with a variety of Bluetooth platforms I used and the team was extremely helpful in assisting with any issue ### 2/5 — Graphing issues *2020-11-29* App is alright, using it for something non-Arduino related. Following all Arduino formatting, I cannot get the graph to show data. It immediately crashes when I select data tab. Terminal shows data correctly. **Developer response:** Hello, this is a common issue associated with not enabling location services. Attempt the following to fix this issue: exit the app, delete it from your phone, reinstall it, and make sure to allow location services when requested. The app requires location services for the graphing section in order to attach latitude/longitude coordinates to each data point (for geographic data mapping). ### 5/5 — BLExAR app *2020-08-05* Unlike other apps this app worked first time and every time without fail. Well done. ### 5/5 — Does what it advertises with great support *2020-05-20* I have downloaded 5+ other apps but they all are geared toward controlling Arduino with iPhone not sending sensor data TO iPhone . Had a few initial issues (self inflicted) but support staff responded within minutes to my questions and I was graphing sensor data immediately thereafter. ## Frequently asked questions about BLExAR ### What is BLExAR? BLExAR is an iOS application that uses Bluetooth Low Energy to connect with Arduino boards. It allows users to control Arduino pins, plot data in real-time, log measurements with GPS coordinates, and communicate via a serial terminal. ### How much does BLExAR cost? BLExAR is a paid application, priced at $3.99. This one-time purchase grants access to all its features for controlling and interacting with Arduino devices. ### What devices support BLExAR? BLExAR is compatible with iPhone, iPad, and iPod touch devices. It requires a Bluetooth Low Energy-compatible Arduino board, such as those using CC2541 Bluetooth modules. ### Is BLExAR suitable for beginners? Yes, BLExAR is designed for makers, students, and engineers, making it suitable for those new to Arduino and mobile-connected projects. It simplifies the process of interacting with Arduino hardware. ### How often is BLExAR updated? The latest version of BLExAR, 2.7, was released on June 8, 2023. The app is actively maintained by Maker Portal LLC, with updates providing new features and improvements. ### Does BLExAR have ads? No, BLExAR does not contain advertisements. As a paid application, it offers an uninterrupted user experience focused on its functionality for Arduino control and data logging. ### What kind of data can BLExAR log? BLExAR can log real-time sensor data from your Arduino board into a comma-separated file. It also has the capability to capture and log the GPS coordinates associated with each data point. ### What is the age rating for BLExAR? BLExAR has an age rating of 4+. This indicates that the content is generally suitable for all ages, with no mature themes or potentially objectionable material. ## Version history (last 5 releases) ### 2.7 — 2023-06-08 Fixes to location estimates from GPS during data acquisition ### 2.5 — 2021-07-07 Backwards compatibility fixes for older iOS devices and BLE chips, plus new stability for faster datalogging ### 2.4 — 2021-06-26 Backwards compatibility fixes for older iOS devices and BLE chips ### 2.3 — 2021-04-05 Bug fixes related to Bluetooth on newer iOS devices ### 2.2 — 2020-12-31 Multi-line plotting, GPS coordinates for datalogging, better timestamps for datalogging, compatibility with a wider range of BLE devices and Arduino boards (HM-10, AT-09, JDY-18, BLE-Nano, HC-42, MLT-BT05). ## Apps similar to BLExAR | App | Rating | Price | Category | | --- | --- | --- | --- | | [Arduino Programming Tutorial](https://appshunter.io/ios/app/arduino-programming-tutorial/id6446804186) | — | Free | Education | | [MIT App Inventor](https://appshunter.io/ios/app/mit-app-inventor/id1422709355) | 2.8 (6) | Free | Education | | [Arduino Science Journal](https://appshunter.io/ios/app/arduino-science-journal/id1518014927) | 4.4 (1,102) | Free | Education | | [Thunkable Live](https://appshunter.io/ios/app/thunkable-live/id1223262700) | 4.1 (324) | Free | Education | | [Arduino Programming Pro](https://appshunter.io/ios/app/arduino-programming-pro/id6447102673) | 4.6 (5) | $4.99 | Education | | [EE ToolKit](https://appshunter.io/ios/app/ee-toolkit/id391792609) | 4.7 (1,397) | Free | Education | ## More apps by Maker Portal LLC - [MotionLink](https://appshunter.io/ios/app/motionlink/id6759984595) - [GridVerse](https://appshunter.io/ios/app/gridverse/id6761637488) - [itria](https://appshunter.io/ios/app/itria/id6762374299) - [akous](https://appshunter.io/ios/app/akous/id6764460494) - [nymic](https://appshunter.io/ios/app/nymic/id6773200092) All apps by Maker Portal LLC: https://appshunter.io/developer/1439459313 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-20.*