i vs USB
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
i
Access and manage files on USB drives directly from your Apple device. Stream music, watch videos, and view photos stored on your USB flash drive. It also facilitates photo synchronization.
- Open USB Flash Drive files
- Stream music
- Watch videos
- View photos
- Sync photos
- USB 3.0 card reader compatible
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can open the" USB Flash Drive" Apple USB disk files, such as: music, video, photos, can beUSB3.0_ cardreade Apple USB disk and apple devices, sync photos. Photograph
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.
- 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
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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.
Screenshots
Verdict
The clearest difference is review sentiment: USB at 75% against i's 10%. USB also leads on rating (4.4 vs 2.1) and update cadence (monthly vs every 3 months). i's advantage is ratings volume (83 vs 16) and iOS requirement (11.0 vs 13.0). On price, ads, in-app purchases and monetization model 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
USB holds the better App Store score, 4.4 against 2.1. That said, the two scores are not equally well evidenced: i has 83 ratings behind it against 16, so its average is the more settled of the two. Written reviews point the same way: 10% of i's written reviews are positive against 75% of USB's.
i ships an update every 3 months, USB monthly. The most recent releases landed on October 21, 2026 and October 24, 2026 respectively.
| Parameter | i | USB |
|---|---|---|
| Price | Free | Free |
| Rating | 2.1 (83 ratings) | 4.4 (16 ratings) — better |
| Positive reviews | 9.9% of reviews | 75.0% of reviews — better |
| Number of ratings | 83 — better | 16 |
| Update frequency | Every 3 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 30 MB | 74 MB |
| Age rating | 4+ | 4+ |
| Developer | 裕雨 程 | U.S. Boiler Company, LLC. |
Customer experience
i
USB
Bugs and requests
i
Reported bugs
4 issues- App crashes when trying to export files
- External storage not detected by app
- Corrupted or lost data after file transfers
- Compatibility issues with iPhone X and newer models
Requested features
4 requests- Add support for landscape mode
- Improve video playback capabilities
- Allow for better file management and organization
- Provide option to change app language
USB
Not enough reviews yet to summarise bugs or requests.
In-app purchases
i
No in-app purchases
USB
No in-app purchases
