Zero Duplicates Reviews: Is It Legit?

Customer Experience

Positive experience80.0% of reviews
Neutral10.0% of reviews
Negative experience10.0% of reviews

~ Based on 10 written reviews from the US App Store.

Is Zero Duplicates Safe?

Zero Duplicates: File Cleaner appears safe based on user ratings. AppsHunter Safety Score for Zero Duplicates is 90/100.

This assessment is based on 65 user ratings, with an App Store average of 4.8/5.

Safety Analysis

96.8% of ratings point to a safe experience
3.2% of ratings suggest some concerns
0.0% of ratings point to a risky experience

~ Based on 63 App Store ratings for Zero Duplicates.

Is Zero Duplicates Legit?

Zero Duplicates: File Cleaner appears legitimate, with a few gaps. AppsHunter Legitimacy Score for Zero Duplicates is 65/100.

Based on 65 of 100 points across 7 verification signals from App Store and developer data.

Top reviews

Recover 15G of space on iPad

Let me decide what files to delete, just wish I could select from 3rd party app!

Response from developer

Thanks for taking the time to write this review and I'm glad you were able to reclaim some storage space. I've just implemented and released Auto Select for specific folders in version 1.5. Now you can, like in the macOS app, select which duplicates from which folders you would like to select for deletion. Some cloud apps do not allow access to 3rd party apps besides the Files app. I would love to make this possible but this is unfortunately nothing I could implement. If there is anything else, feel free to reach out via the feedback function in the app or via mail.

Genau das nachdem ich gesucht habe

Sehr empfehlenswert !

Recover 15G of space on iPad

Let me decide what files to delete, just wish I could select from 3rd party app!

Love it!!!

After trying the app, I was so impressed that it did as advertised, that I bought the lifetime subscription. I don’t give 5 star reviews, even to Apple products or software. This app has earned my 5 stars.

Response from developer

Thank you so much for taking the time to write this review. It really means a lot to me.

Simple and useful

Tut was sie soll.

Response from developer

Vielen Dank für Ihre Bewertung! Es freut mich, dass die App Ihrer Meinung nach genau das tut, was sie soll. Danke für Ihre Unterstützung!

Changing to 4.5 stars — I was wrong about the cause of my issues

After further investigation, the problem wasn’t the app at all — it was iCloud Drive’s “Optimize Storage” feature. When that setting is active, iCloud can hang while trying to access files, which caused the app to appear frozen for hours with no progress. That’s an Apple/iCloud limitation, not a flaw in the app itself.
I also want to note there was a delay in the developer’s response, but they did follow up.
The app actually does what it promises. If you’re running into similar issues, check your iCloud settings first — disabling Optimize Storage before scanning made all the difference. Giving credit where it’s due.
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Response from developer

Thank you for taking the time to investigate and update your review. That genuinely means a lot, and apologies again for the slow initial reply. You've identified the issue precisely: with iCloud's Optimize Storage active, the system's file provider has to fetch files on demand and can stall, which the app can't speed up on its end. Your tip about disabling it before scanning is solid advice and will help others. I'm looking into detecting cloud-only files so I can warn users up front. Glad it's working well for you now.

Excellent

Excellent

Response from developer

Thank you for the review — I’m glad you’re finding the app useful. I appreciate the support!

Hat Potential

Ich habe die App zwar gekauft aber mir fehlen bei dieser App soweit ich gesehen habe ein Paar Optionen.
Ich vermisse z.B die Option, dass ich manche Files von der Löschung bewahren möchte indem ich sie auf "ignorieren Liste" stellen kann oder warum kann die App google drive nicht scannen obwohl ich keine Zugriffsrechte eingeschränkt habe oder warum muss ich für mein Mackbook noch eine Lizenz kaufen obwohl ich die Lizenz für iPhone gekauft habe!
Wenn der Autor die paar Sachen weiterentwickelt könnte ich 5 Sterne vergeben.
Plus Punkte hat die App was Geschwindigkeit und Gründlichkeit angeht, behaupte ich.
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Response from developer

Vielen Dank für das ausführliche Feedback und die ehrliche Bewertung. In der macOS-App gibt es bereits eine Ignorieren-Liste für Dateien. In der iOS-App ist diese Funktion noch nicht vorhanden, da die App insgesamt noch recht jung ist. Sie steht aber auf meiner Roadmap. Google Drive sollte grundsätzlich funktionieren. Wenn das Scannen bei Ihnen nicht funktioniert, würde ich mich über ein paar Details per E-Mail freuen, damit ich mir das genauer ansehen kann (z. B. iOS-Version, installierte Google-Drive-App, Speicherort der Dateien). Zur Lizenz: Die macOS-App ist ein separates Produkt und benötigt daher eine eigene Lizenz, da iOS/iPadOS und macOS von Apple aktuell als unterschiedliche Plattformen behandelt werden. Es freut mich sehr, dass Sie die Geschwindigkeit und Gründlichkeit positiv hervorheben – danke dafür! Mit dem weiteren Ausbau hoffe ich, die fehlenden Punkte nachzuliefern und die 5 Sterne zu erreichen.

Don’t Waste Your Money - Forced Purchase, Non-Functional App

I was forced to purchase this app before I could properly test it, and I deeply regret it. Here’s what happened:
The Forced Purchase Scheme:
The “free trial” is designed to always find more duplicates than the limit allows, forcing you to purchase either a subscription or lifetime license just to test whether the app actually works. I tried scanning just my Downloads folder - it still exceeded the free limit. This is manipulative, not legitimate business practice.
Complete Failure with iCloud Files:
After being forced to buy the lifetime license, the app became completely unusable when working with iCloud Drive:
∙ Ran for 3+ hours with NO progress bar or status indicator
∙ Stuck on “reading iCloud files” with no indication of progress
∙ No way to know if it was actually working or frozen
∙ Eventually had to force-quit because nothing was happening
The Real Problem:
This app fundamentally doesn’t work with iCloud Drive on iPad/iPhone. It can’t handle cloud-synced files, which is exactly what iOS/iPadOS users need it for. Without a progress bar, you can’t even tell if it’s working or crashed.
My Recommendation:
Don’t fall for the forced-purchase trap. If you need duplicate file management with iCloud, this app cannot deliver. The lack of any progress indicator makes it unusable even if it theoretically works.
I’ve am requesting a refund from Apple. Save yourself the money and frustration.
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Response from developer

Thank you for your feedback. For the sake of accuracy, I’d like to clarify several factual points for other readers. Scanning is unlimited and always free. You can scan as many files and folders as you want at no cost. A purchase is only required if you choose to delete more than 1 GB of duplicate data. This is clearly stated in the app, the App Store description, and on the website. There is no mechanism that forces a purchase before testing whether the app works. The claim that the app is "designed to always exceed the free limit" is incorrect. The app simply analyzes and reports the duplicate data it finds. If more than 1 GB of duplicate data exists, the reported result reflects that reality. It is not artificially inflated or manipulated in any way. Regarding iCloud Drive, the app supports iCloud files. During large iCloud scans, the app displays its progress. Depending on Apple’s file provider behavior and network conditions, this step can take longer. Progress indicators are present, but some stages cannot provide granular progress due to platform limitations. I responded to the support email directly to request additional details so that the issue could be properly investigated, but that information was not provided. Performance and progress visibility improvements are already in development. If the app does not meet your expectations, Apple provides a straightforward refund process. I am committed to transparency and continuous improvement.

Super hilfreich

Die App tut genau, was sie soll, ohne Schnickschnack. Sie ist zuverlässig, schnell und übersichtlich. Perfekt zum Aufräumen! Vorher habe ich ewig mit dem Aussortieren meiner Ordner verbracht und heute habe ich in nur ein paar Minuten mehrere GB frei gemacht. Große Empfehlung!

Response from developer

Vielen Dank für die tolle Bewertung! Freut mich sehr, dass die App dir so viel Zeit gespart hat.