Comparison

USB vs CrossLink

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

Head to head
About

USB

This tool connects to U.S. Boiler modulating condensing boilers via a Bluetooth adapter for commissioning, diagnostics, and service. It offers wizards for startup and troubleshooting, data logging, and remote support capabilities through a web portal.

Highlights
  • Bluetooth connectivity to boilers
  • Commissioning, diagnostic, and service functions
  • Startup, troubleshoot, and service wizards
  • Cloud data logging and reporting
  • Remote support via web portal
  • Boiler firmware and parameter updates
Read full description

USB-Connect is a commissioning, diagnostic and service tool consisting of a Bluetooth Adaptor and mobile device app. The app communicates with any U.S. Boiler modulating condensing boiler. USB-Connect is a local service tool with web portal data collection and live streaming to enable remote support. Compatible Boilers include Alpine, Alta, AltaC, Aspen, AspenC, K2WT, K2WTC, K2FT and XC Modulating Condensing Boilers. USB-Connect Features: • Bluetooth Adaptor connects boiler to USB-Connect App. • English and Spanish Language. • Start-up, Troubleshoot and Service Wizards. • Data logs, site photos, service & status reports sent to cloud. • Alta Boiler Control firmware and default parameter updates.

About

CrossLink

Features
Read full description

This companion application is designed to be used with j5create WormholeSwitch USB-C Dock Wireless Charger. The j5create WormholeSwitch USB-C Dock Wireless Charger is a USB Dock with host-to-host wireless connectivity feature. In addition to its hub, holder and wireless charging functions, the included Bluetooth dongle also provides pairing identification to help Windows PC and iPad/iPhone connect wirelessly via local Wi-Fi or hotspot connection. After the connection is successful, you can use this APP to mirror the Windows PC main screen and view and operate it directly on iPad/iPhone. Gesture events or stylus trajectories and pen pressure on iPad/iPhone can also be reflected in Windows, just like having an extra touch screen in Windows. In addition to this mirror mode, this APP also provides the function of generating a virtual second screen in Windows, and this second screen can be projected to iPad/iPhone for viewing and operation. Conversely, we can also project the content of iPad/iPhone to Windows PC through this wireless connection. This function is just like AirPlay. You can see iPad/iPhone screen content and operations directly on the Windows PC screen. In addition, through the Bluetooth dongle, users can switch the keyboard and mouse from Windows to iPad/iPhone, allowing users to use the mouse connected to Windows to control iPad/iPhone while watching the projected content, or Use the keyboard connected to Windows to input text directly on iPad/iPhone. In addition to video screen projection and duplication, the app also supports an AirDrop-like feature that allows you to easily share media content such as videos, photos, or files to the "Downloads" location on your Windows PC. You can also share files to your iPad/iPhone by right-clicking the file in Windows Explorer and selecting the Share menu function, just like using AirDrop on a Mac. In addition, we also provide a file selector located in the main panel to directly select the file to be transferred.

Screenshots

USB4 screens
CrossLink4 screens

Verdict

The call

The clearest difference is update cadence: CrossLink at weekly against USB's monthly. CrossLink also leads on iOS requirement (11.0 vs 13.0). On price, ads, in-app purchases and device support 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

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

UpkeepUpdate frequency

USB ships an update monthly, CrossLink weekly. The most recent releases landed on September 8, 2026 and September 19, 2026 respectively.

Scorecard2 real differences · 8 level
USB versus CrossLink: the parameters behind the verdict, then further details
ParameterUSBCrossLink
PriceFreeFree
Rating4.2 (16 ratings) — better—
Positive reviews75.0% of reviews—
Number of ratings16 — better—
Update frequencyMonthlyWeekly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.011.0 — better
Further details — not scored
Size74 MB54 MB
Age rating4+4+
DeveloperU.S. Boiler Company, LLC.j5create

In-app purchases

None

USB

No in-app purchases

None

CrossLink

No in-app purchases

Questions

Is USB free?
USB is free to download, with no in-app purchases.
Is CrossLink free?
CrossLink is free to download, with no in-app purchases.
Do USB or CrossLink have ads?
Neither USB nor CrossLink shows ads.
Which is updated more often, USB or CrossLink?
USB ships an update monthly, and CrossLink weekly. Most recently, USB was updated on September 8, 2026 and CrossLink on September 19, 2026.

Other comparisons