# DUO-LINK 3.0 — user reviews > 97 indexed App Store user reviews of DUO by Gopod Group Limited, rated 2.50/5 from 86 ratings. - Source: https://appshunter.io/ios/app/duo-link-30/id1088185359/reviews - App overview in markdown: https://appshunter.io/ios/app/duo-link-30/id1088185359.md - Rating breakdown: 5★ 20 · 4★ 8 · 3★ 7 · 2★ 15 · 1★ 36 ## What do users think of DUO? Overall sentiment: negative **Pros** - ✅ Easy file transfer between devices - 📱 Works with multiple iOS devices - 🎵 Can store and play media files - 💾 Provides additional storage capacity - 🔄 Simple backup functionality for photos/videos - ⚡ Fast data transfer speeds - 👍 User-friendly interface (when working) **Cons** - 🐛 Frequent app crashes and freezes - ❌ Incompatible with newer iPhone models - 📉 Poor app stability after updates - 🔌 Hardware not recognized by app - 💥 Data loss issues reported - 🚫 Cannot share files with other apps - 🔐 Missing file locking/password protection - ⚠️ Dark mode functionality broken - 📁 Cannot access all files on device - 🎵 Audio file playback crashes - 📦 App bloats to 1-2GB after use - 🖼️ Photo backup limited to recent images - ⏱️ Slow performance with large files - 🔗 Poor iOS 11+ compatibility - 😤 Unresponsive customer support **Commonly reported bugs** - App crashes when playing MP3 files - App crashes when transferring large files - App crashes when viewing videos - App crashes when adjusting volume during video playback - App crashes when copying photos - App crashes after 15-20 seconds of use - Cannot recognize iPhone 8, iPhone X, iPhone 14, iPhone 16 Pro - Hardware not detected despite proper connection - Files show as transferred but remain on device - Duplicate file errors during transfer - File names corrupted with special characters - Cannot delete files after transfer - App closes when opening audio files - Cannot access audio files after update - App bloats to 1-2GB after initial use - Incompatible with iOS 11 and later versions - LED light not activating on connection - Chinese language files appearing unexpectedly - Cannot read flash drive after disconnect/reconnect - File transfer progress not completing despite appearing to work - Photos not visible in app despite being on device **Most requested features** - Video thumbnail preview functionality - File sharing with other applications - Password/file locking capability - Ability to select multiple files in view mode - Wireless streaming to Apple TV - Root folder naming per device - Ability to rename files on iPhone - Create folders and organize files - App storage on external drive - Better PDF reader for stored files - Fast forward/rewind for audio/video - Playback resume from last location - Bookmark functionality for media - Live photo support - Document transfer capability ## Newest reviews (14 of 97) ### 2/5 — Partially work *2025-08-05, version 1.7.1* I was getting ready to send it back and decided to try once more.I do see some of the photos and videos that it transferred. But they also still showing on my iPad mini. I don’t understand that. The app itself doesn’t work with the usb flash. It doesn’t work at all with my iPhone 16 pro. I’m still trying to work with it because of some transfers. Overall I’m not satisfied with it. A 1TB flash. ### 3/5 — The app was amazing before. *2024-09-28, version 1.7.1* The application has several issues with the advanced updates. First, there is a bug in the dark mode. Second, there is an inability to share files with other applications. Third, and most importantly, the file locking tool with a password has disappeared. I hope the issues are fixed so we can use your company's tools. التطبيق فيه عدة مشكلات في التحديثات المتقدمة منها اولا هناك خلل في الوضع الداكن ثانيا عدم القدرة على مشاركة الملفات مع التطبيقات الاخرة ثالثا وهو الاهم اختفاء اداة قفل الملفات بكلمة سر ارجو اصلاح المشكلات لكي نستخدم ادوات شركتكم . ### 2/5 — Crashes *2023-06-02, version 1.7.1* When I got the new iPhone 14, this app crashes. Now I can’t back up my phone. Is there an issue with new iPhone and this? ### 2/5 — It's kinda crap, but it sorta works *2021-10-28, version 1.7.1* Ya'll all get the last app upgrade? Crash on ya now? Yeah.... Is it that hard to make this simple lack luster app work? Update: now maybe months to a year later I can only say this app works worse then ever ### 2/5 — Bug? Mise à jour?... *2020-11-05* Très satisfaite au début de cette clé! Permet de faire des transferts entre pc et téléphone facilement et/ou d’avoir un espace de stockage supplémentaire. Très pratique pour les sauvegardes de contact aussi! Mais aujourd’hui, impossible!..... Je m’aperçois qu’il n’y a plus de mise à jour depuis un petit moment... Un abandon du développeur ?.. Cette clé devient peu à peu inutile pour le téléphone... elle devient une clé usb basique... Démarche volontaire pour pousser à la consommation? Ou inattention du développeur ? Peut-on espérer une réaction pour corriger les bugs constatés?... ### 2/5 — Update bad *2020-07-17, version 1.6.7* Updated 7 /16/20 and it stop playing music on my iphone ### 1/5 — No reproduce los audios *2020-07-08* Al querer reproducir un audio se cierra la aplicación ### 1/5 — Can’t play mp3 files anymore! *2020-07-07, version 1.6.7* After update iphone or ipad can’t play mp3 files! It close out of the app! ### 1/5 — Hopeless *2020-07-06, version 1.6.7* Won’t recognise its own hardware. Waste of time and money, both. ### 1/5 — F.....g Idiots! *2020-07-05, version 1.6.7* You incompetent f....g idiots. I upgraded from the app store this morning, now all the work I had stored on it is gone, you f.....g pathetic stupid ignorant F..k heads! ### 1/5 — No reproduce sonido!!! *2020-07-05* Al actualizar dejó de reproducir sonido!!!... La APP se sale al tratar de reproducir un archivo de sonido, musica!!!... regresen a la versión anterior!!!! ### 1/5 — Don’t waste your money *2019-10-26, version 1.6.4* Formatted my files and it deleted EVERYTHING and cannot be recovered. After it wiped everything from my drive, I can no longer save anything even though the drive is completely empty..... ### 1/5 — Ne sert à rien *2019-04-18* L'application ne fonctionne pas, impossible de lire ce qu'il ce trouve sur la clé, la moitié des paramètres ne servent à rien car défaillant. Cette appli ne sert qu'à lire ce qui est déjà sur votre téléphone avec une SURPRISE en plus; des fois ça plante quand on ouvre une image. ### 1/5 — HONTEUX! *2019-03-06* Vous devriez rembourser chacun des utilisateurs! Le produit ne fonctionne pas. Honte à vous. ## Most critical reviews (10 lowest-rated) ### 1/5 — Very limited & poorly presented *2023-06-07* App can’t even handle files a few hundred MB large? What is this? The late 90’s ?? Good thing I only tried the app and didn’t buy their product. It can only open large files, but nothing else. ### 1/5 — Why don’t this work anymore? *2022-08-29, version 1.7.1* I’ve got my flash drive for iOS and it is still able to be loaded on a PC but the app is dead weight on my phone and has been for a year or two. I hate to lose any data that I’m not able to offload on the drive…. ### 1/5 — Can’t update. *2021-12-10, version 1.7.1* Something about a previous purchase. Won’t accept my information. I have several gigabytes of personal information that I have no access to now. ### 1/5 — You made this app useless.It does not open any files on iPad *2020-09-21, version 1.6.7* Once upon a time this app functioned (awkwardly).Your “fix something bug” made the whole thing a bug. The help button goes to a page that doesn’t exist.Fix it or get out of here ### 1/5 — Lost my all data *2020-08-21, version 1.6.7* It was working great and all if sudden today it was not opening, and shows no data there. Is there any luck i can get my data again? ### 1/5 — What happened *2020-07-29, version 1.6.7* It use to work on the phone and after your up date, now it doesn’t work. ### 1/5 — MP3 issue with new update *2020-07-22, version 1.6.7* App does not play mp3 music anymore. Please fix. This app had been working good till the update was pushed. ### 1/5 — Needs Update *2020-07-19, version 1.6.7* Updated to new IOS and now it does not work anymore. ### 1/5 — MP3 files no longer play *2020-07-17, version 1.6.7* Just loaded the July 4 update. Up to now, this was a great app that stored jpg files and allowed me to listen to MP3 music and MP4 videos. The videos still play but MP3 music cancels the app. Hence, no more music or downloaded talk shows. Upgrade 1.6.7 upgrade ruined everything! ### 1/5 — Kinda upset *2020-07-12, version 1.6.7* I have never had an issue with my app before but when I plug my pny 3.0 usb in it won’t play my music anymore I click on the song and the app closes and won’t play the song. ## Most praised reviews (10 highest-rated) ### 5/5 — I love it! *2021-02-02, version 1.7.0* I bought the DuoLink 3.0 a few years back, and I have used it everyday. Unfortunately, mine was lost a few months back. I wish I could find a replacement drive, but they are no longer for sale ### 5/5 — thank you for fixing the bug of not being able to access the audio files *2020-12-04, version 1.7.0* 12/4/2020 thank you 7/5/2020 aftre the update, I can not open any of the audio files, either mp3 , wma, or m4a files, either on the internal or external storage, using my iphone x or ipad pro. after clicking the selected audio file, it went back to iphone or ipad homescreen directly without playing it. all the other video mp4 files, and pdf files work normal as before. ### 5/5 — Very good and useful *2020-07-17, version 1.6.7* This app is perfect for saving any files and essentially backing up your phone just in case. The only issue I’m having right now is that whenever i try to play music off this app it crashes the app. Please fix and App will be perfect again. ### 5/5 — It’s working *2019-10-09, version 1.6.4* I decided to do a review because I was having doubts about buying this product after reading other reviews but it did work for me , I copy my photos and videos into this flash drive very easy with no issues. Seems like people had issues before but that was 2 years ago and I really recommend this product. ### 5/5 — Very useful *2019-03-15, version 1.6.4* Easy to use alternative to iTunes. ### 5/5 — SPY3.0 *2018-11-13* It really is a great app, runs smoothly and does not stop. It doesn’t work with the new iPad pro 3rd generation 2018. They’ll not connect with the DUO-LINK app. Is there an update possible? ### 5/5 — Works as promised *2017-05-11, version 1.5.1* I wish the instructions for this app were included with the PNY Duo-Link I bought, but once I found 'em the app (and PNY Duo-Link 3.0) device work as promised. Files transfer with ease and I can play music and videos from my Duo-Link drive on my iPhone 5S. ### 5/5 — Muito pratico e eficiente! *2016-05-27* App muito eficiente e funciona perfeitamente. ### 5/5 — Great Product *2016-05-26, version 1.2.0* Duo-Link does what it says. Convenient to load files from Mac and use on iPad without transferring wirelessly. The new 3.0 Duo-Link uses a new app that works well. An initial glitch that caused the screen on an iPad Pro to automatically reorient from landscape to portrait layout has been fixed by the developers. A great way to take large files, including videos with you without filling up the storage on your iOS device. ### 4/5 — PNY clé usb *2019-05-16* Fonctionne très bien sur mon iPhone 7 et mon iPad air contrairement à beaucoup d'avis... Et aucun souci sur le PC non plus --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*