Retra UWT

Retra UWT, Ltd. Utilities iPhoneiPadiPod touch

Retra UWT is a free Utilities app for iPhone and iPad by Retra UWT, Ltd. Rated 4.7/5 from 3 ratings. Requires iOS 13.0. Updated February 10, 2026.

Rating: 4.7; 3 ratings
Price: Free; on the App Store
Size: 51 MB; Age 17+
Updated: Feb 10; 2026 · v3.1.32

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About Retra UWT

The companion App for Retra Flash devices. Connect your Retra Flash via the App, check usage statistics, get firmware updates, access user manuals and more.

What’s new

Version 3.1.32 · Updated February 10, 2026

Added connectivity and user manual for Maxi strobe (FW1.0). Firmware Update for Pro Max II (FW 4.0): - This update adds the Pilot Light Toggle (PLT) function. Activate PLT by holding the pilot/test button for 5 seconds while in HSS mode. Once activated, PLT works in all modes where the pilot light can be used. Moving the power dial one step up and down within 1 second simulates a press of the pilot/test button, allowing you to adjust the pilot light or turn it off. You can also turn off the pilot light in any mode by moving the dial one step down and up. Firmware Update for Retra Flash Pro Max (v2.17 - two.seventeen), Prime+ (v2.4), and Pure (v2.4). This update includes important bug fixes and performance improvements, such as: - Enhanced empty battery detection and indication, reducing false warnings. - New trigger recalibration function: In case of misfires, go to TTL mode, hold the pilot/test button for 6 seconds to start recalibration (indicated by "CAL"). The strobe will emit 5-10 high-intensity flashes to complete the process. - Improved pilot light stability when using 8xAA batteries, reducing flickering. - Additional updates to improve overall reliability and robustness. This App also includes firmware 4.2 (renamed 3.13) for Pro X/Prime X (3rd Gen) and firmware 4.5 (renamed 4.3) for PRO/Prime (2nd Gen).

App privacy

The developer, Retra UWT, Ltd., reported these privacy practices to Apple.

Data Not Linked to You

The following data, which may be collected but is not linked to your identity, may be used for the following purposes:

Usage Data: Product Interaction
Diagnostics: Crash Data, Performance Data, Other Diagnostic Data
Other Data: Other Data Types

Used for: Analytics

App details

Retra UWT is a free Utilities app for iPhone, iPad and iPod touch, developed by Retra UWT, Ltd. It is rated 4.7 out of 5 from 3 ratings on the App Store, requires iOS 13.0 or later and is 51 MB to download. It was first released on January 23, 2020 and last updated on February 10, 2026.

Category: Utilities
Rating: 4.7 / 5 (3 ratings)
Price: Free
Version: 3.1.32
Size: 51 MB
Requires: iOS 13.0 or later
Compatibility: iPhone, iPad, iPod touch
Languages: English
Age rating: 17+
Released: January 23, 2020
Last updated: February 10, 2026
Developer: Retra UWT, Ltd.

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