Comparison

FlashLink BLE vs Acoustic Link

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

Head to head
About

FlashLink BLE

Features
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The FlashLink BLE application is used to communicate using low-energy Bluetooth with the FlashLink BLE Data Loggers. This application provides easy to use setup and configuration options, START and STOP functions and data can be uploaded into the ColdTrak cloud server for access through standard web browsers. Temperature and Humidity data (on selected models) is easily viewed in the application and on the web server in both graphical and list formats. Reports are available in PDF and CSV and can be easily shared through text or email. Ā· Internet connection is not required to read the FlashLink BLE data logger with this application, however, internet connection is needed to upload data into the ColdTrak cloud server Ā· Monitor logging conditions in real time Ā· Set Logging Intervals Ā· Configure High Resolution Logging for selected conditions providing additional recorded data samples Ā· Delayed Alerts can be configured based on threshold and time, Minimum or Maximum levels Ā· Alerts can be set based on Minimum and/or Maximum settings Ā· Easy to see Visual Alerts Ā· Clear, audible alarms Ā· User-friendly Zoom feature for fast and easy viewing of charts and graphs Disclaimer: Continued use of GPS running in the background can dramatically decrease battery life.

About

Acoustic Link

Features
Read full description

Acoustic Link is a mobile application specifically designed for acoustic imaging devices, helping users achieve convenient and efficient detection operations and data management on mobile devices. Through quick WiFi connection with acoustic imaging devices, users can directly view acoustic images, videos, and detection reports captured by the devices on their smartphones, truly realizing mobile operations and instant information access. Wireless Connection, Rapid Synchronization Supports stable connection with acoustic imaging devices through WiFi, providing flexible on-site operations. No need to carry a computer to complete photography, video recording, and browsing. Photo, Video, and Report Viewing Easily browse high-resolution photos, videos, and test reports captured by acoustic imaging devices. Content is complete and intuitive, facilitating fault analysis and record retention. Local Download and Quick Sharing One-click download of detection results to local phone storage, supporting quick sharing to colleagues or clients through social software, email, and other methods, enhancing team collaboration efficiency. Remote Real-time Viewing and Control Supports real-time viewing of acoustic imaging device screens and remote control of device photography and parameter settings, meeting remote operation requirements in complex environments. Acoustic Link combines the professional capabilities of acoustic detection with the convenient experience of mobile devices, allowing you to grasp key detection information anytime, anywhere. It is the ideal companion for acoustic imaging device users.

Screenshots

FlashLink BLE3 screens
Acoustic Link4 screens

Verdict

The call

The clearest difference is update cadence: Acoustic Link at every 2 months against FlashLink BLE's every 5 months. FlashLink BLE's advantage is iOS requirement (9.0 vs 13.0). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

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

UpkeepUpdate frequency

FlashLink BLE ships an update every 5 months, Acoustic Link every 2 months. The most recent releases landed on October 2, 2026 and September 29, 2026 respectively.

Scorecard2 real differences Ā· 4 level
FlashLink BLE versus Acoustic Link: the parameters behind the verdict, then further details
ParameterFlashLink BLEAcoustic Link
PriceFreeFree
Update frequencyEvery 5 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS9.0 — better13.0
Further details — not scored
Size17 MB51 MB
Age rating4+4+
DeveloperColdTrakHangzhou Crysound Electronics Co., Ltd.

In-app purchases

None

FlashLink BLE

No in-app purchases

None

Acoustic Link

No in-app purchases

Questions

Is FlashLink BLE free?
FlashLink BLE is free to download, with no in-app purchases.
Is Acoustic Link free?
Acoustic Link is free to download, with no in-app purchases.
Do FlashLink BLE or Acoustic Link have ads?
Neither FlashLink BLE nor Acoustic Link shows ads.
Which is updated more often, FlashLink BLE or Acoustic Link?
FlashLink BLE ships an update every 5 months, and Acoustic Link every 2 months. Most recently, FlashLink BLE was updated on October 2, 2026 and Acoustic Link on September 29, 2026.

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