DUO LINK 4 vs Feit Electric
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DUO LINK 4
Manage and transfer files between your iOS device and a USB flash drive. Free up storage, back up data, and even charge your device. Supports a wide range of file formats for seamless integration.
- Free up iPhone/iPad space
- Charge iOS devices
- Back up contacts
- Transfer photos and videos
- Store photos directly
- Manage files
- Music and video playback
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PNY DUO LINK 4 app, designed to work with DUO LINK OTG USB 3.0 Flash Drive brings you the ability to do more when it comes to file transfer, saving, sharing, accessing and streaming. Simply connect the DUO LINK OTG USB 3.0 Flash Drive to your iPhone and iPad and start syncing, transferring, sharing files, photos, videos and more with ease. DUO LINK OTG USB 3.0 is a flash drive designed for iPhone and iPad that enables you to free up space on your iOS device, save and protrect your contents into DUO LINK and even transfer then to your computer. DUO LINK OTG USB 3.0 also provides the ability for you to charge your iPhone and iPad. Features and Benefits: - Free up space on your iPhone or iPad. - Charge your iOS device. - Back-up your contacts. - Transfer and share your videos, photos and more. - Store photos directly into DUO LINK and save space on your iPhone or iPad. - Manage files on your iPhone, iPad and on DUO LINK. - Supports independent music and video playback. - Automatically back up your photos and videos so that you don't have to. Support: Please visit PNY Support at www.pny.com/support/technical-support Supported file formats: - video: M4V/MP4/MOV - Audio: M4A, CAF, AIFF, ASF, AAC, mp3, wav - Picture: TIFF, JPEG,JPG,PNG,GIF,BMP - Document: DOC, DOCX, PAGES, RTF, TXT , PPT, PPTX, PDF, XLS, XLSX, NUMBERS, KEY, HTML PNY takes no responsibility or liability with respect to the download or usage of DUO-LINK 4 app. By downloading this app you agree to the end user license agreement from PNY, also available at http://www.pny.com/File%20Library/Unassigned/PNY--On-the-Go-End-User-License-Agreement.pdf .
Feit Electric
Control your Feit Electric LED Smart Bulbs remotely. Adjust brightness, set schedules, and group lights. Customize colors and color temperature for supported bulbs.
- Remote control
- On/Off functionality
- Dimming
- Grouping lights
- Timers and schedules
- Color customization
- Color temperature tuning
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Control and manage your Feit Electric LED Smart Bulbs from anywhere with this helpful app. Easily turn lights on/off, dim, set groups, timers or schedules. Customize color or tune color temperature if feature is supported by the bulb. Bulbs also work with Amazon Alexa or Google Assistant and can be controlled with simple voice commands. Set up is simple. The bulbs connect directly to your WiFi at home. Purchase your Feit Electric Smart LED bulb, download the app to get started today.
Screenshots
Verdict
The clearest difference is rating: Feit Electric at 4.7 against DUO LINK 4's 2.1. Feit Electric also leads on ratings volume (273K vs 513) and chart position (#92 vs unranked). DUO LINK 4's advantage is iOS requirement (11.0 vs 13.0). On price, review sentiment, update cadence and ads 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.
Feit Electric holds the better App Store score, 4.7 against 2.1. That said, the two scores are not equally well evidenced: Feit Electric has 273K ratings behind it against 513, so its average is the more settled of the two. Written reviews complicate that: 20% of DUO LINK 4's written reviews are positive against 16% of Feit Electric's, so the app with the better star average is not the one people write more warmly about.
DUO LINK 4 ships an update every 2 months, Feit Electric every 3 months. The most recent releases landed on October 24, 2026 and October 30, 2026 respectively.
| Parameter | DUO LINK 4 | Feit Electric |
|---|---|---|
| Price | Free | Free |
| Rating | 2.1 (513 ratings) | 4.7 (273K ratings) — better |
| Positive reviews | 19.8% of reviews — better | 16.4% of reviews |
| Number of ratings | 513 | 273K — better |
| Update frequency | Every 2 months — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Best chart rank | — | #92 — better |
| Devices | iPhone, iPad, iPod | iPhone, iPod, Apple Watch |
| Requires iOS | 11.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 123 MB | 241 MB |
| Age rating | 4+ | 12+ |
| Developer | PNY | Feit Electric |
Customer experience
DUO LINK 4
Feit Electric
User reviews
DUO LINK 4
From 513 App Store ratingsWhat we love
- 🚀 Efficient file transfer
- 💡 Useful for freeing up phone storage
- 👍 Straightforward to use
Room to improve
- 🐛 Frequent app crashes
- 🔍 Confusing or limited UI
- 🔌 Compatibility issues with newer devices
- 💾 Data loss or corruption
Feit Electric
From 273K App Store ratingsWhat we love
- 💡 Easy to schedule and set up
- 🚀 Reliable and stable
- 👍 Great product for home security and safety
- 👍 Responsive devices
Room to improve
- 🐛 Inconsistent and unreliable app performance
- 🐛 Difficult to connect and stay connected to devices
- 👎 Unintuitive and confusing app interface
- 🐛 Group functionality not working
- 🐛 Automation and scheduling issues
Bugs and requests
DUO LINK 4
Reported bugs
3 issues- App fails to detect connected device
- Transferred files not visible or accessible
- Inconsistent behavior when renaming folders
Requested features
4 requests- Add 'select all' option for photos/files
- Support for more file formats
- Improve iPad app experience
- Integrate with native Files app
Feit Electric
Reported bugs
5 issues- Devices randomly going offline
- Automation and scheduling not working as expected
- App freezing and crashing
- Inconsistent device status reporting
- Incompatibility with newer iOS versions
Requested features
5 requests- Add dark mode option
- Improve scheduling and automation features
- Enhance app interface and usability
- Improve device connectivity and reliability
- Expand device compatibility and support
In-app purchases
DUO LINK 4
No in-app purchases
Feit Electric
No in-app purchases
Questions
Is DUO LINK 4 free?
Is Feit Electric free?
Which has better reviews, DUO LINK 4 or Feit Electric?
Do DUO LINK 4 or Feit Electric have ads?
Which is updated more often, DUO LINK 4 or Feit Electric?
Other comparisons
