Qalvin Legacy

Name: Qalvin Legacy
Rating: 2.1 (25 reviews)
Author: SRAM LLC

By: SRAM LLC

Health & Fitness

Features & Capabilities

Qalvin Legacy is an application for iPod Touch, iPhone and iPad that enables calibration and advanced diagnostics of Quarq ANT+power meters. Qalvin Legacy is not for use with BLE enabled power meters such as the Quarq DZero.

User Growth & Download Statistics

App

By:

SRAM LLC

Rating:

2.10

(25)

Version:

1.9 Last updated: 2017-05-16

Version code:

841395032

Creation date:

2011-06-01

Compatible devices:

Size:

9.76MB

URLs:

Website

Full description:

Source:

Apple Apps Store

Data ingested on:

2026-06-07

Compare stats and ranking:

Ranking

# 358,585 ▲ 709

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Apple app. Please use these information below to contact the Apple app developer.

Developed by:

SRAM LLC

Apple Apps Store

https://apps.apple.com/us/app/qalvin-legacy/id432171219

Website:

http://quarq.com/qalvin

User Reviews

Overall, users find Qalvin Legacy valuable as a free calibration/troubleshooting tool when paired with an ANT+ dongle on desktop platforms, with quick device recognition and useful data. However, widespread issues include lack of iPhone/iPad support, nonfunctional UI elements and search, outdated or broken online help, and frequent dependence on older Windows hardware for firmware updates. The app is helpful but conditionally reliable, hinging on hardware and platform compatibility.

Pros

Free tool for calibration, drift monitoring, and troubleshooting of Quarq power meters.
Easily recalibrates and verifies calibration; helps avoid sending unit back to Quarq.
Recognizes the power meter quickly and provides valuable data for troubleshooting.
Works with ANT+ dongle and is usable on Mac/Windows for firmware updates.
Helpful for switching between road and cross configurations and confirming proper setup.

Cons

Requires an ANT+ dongle to function; without it, app may not work.
No native iPhone/iPad support for communicating with Quarq PM; iOS limitations noted.
Many features appear greyed out or nonfunctional (e.g., search, options).
Help/documentation links are outdated or lead to 404 errors.
Some users report needing older Windows versions or desktops to update firmware.

Recent reviews

Mostly use it to test battery voltage. Works fine for me, sometimes a phone reboot is needed to find the device.

by Ke*****, 2023-06-14

My Quarq for Cannondale worked flawlessly until one day that it could not connect to my head unit (Wahoo Bolt). The Quarq Led would continuously blink. Qalvin Legacy does not communicate by iPhone to Quarq PM. I spoke with Quarq customer support and they said I must use either Windows or Mac PC with an Ant+ dongle. So, I bought an Ant+ dongle from Amazon for $15. I downloaded Quarq Qalvin Legacy onto my laptop, but all fields other than “about” were greyed out. The Ant+ dongle would not change anything. My Laptop is Windows 10. So, next I tried an old desktop that I keep in the house, but never use that still had Windows 8. This time, when I inserted the Ant+ dongle into the USB, all of the greyed fields lit up! I entered the Quarq sensor number and selected install firmware and it installed successfully in about 1 minute. This worked flawlessly and my power meter is working perfect again. This was my experience with Quarq Qalvin Legacy. It is old and required an older version of windows (or perhaps just needed to be a desktop instead of laptop?). This worked. I learned that it won’t work from an iPhone or an iPad, and in my case, even a newer laptop, but it worked perfect on an older desktop with Windows 8. Hope this helps someone who needs to reinstall firmware on a legacy Quarq, just like me.