Dedup2

Dedupe, compress, fill gps

Free · In-App Purchases · Designed for iPad. Not verified for macOS.

Find near-duplicate photos and videos, shrink oversized ones, and backfill missing gps from nearby shots — all on your iPhone. Your media never leaves your device. Dedup2 cleans up and enriches your photo library — and your media never leaves your device. Detection, quality scoring, and compression all run on your iPhone using Apple's on-device Vision. FIND DUPLICATES Burst shots, retakes, and accidental copies pile up fast. Dedup2 uses Apple Vision feature prints to detect photos that look alike — not just exact copies — and groups them into clusters you can review at a glance. Unlike the Duplicates album built into Photos, which only surfaces exact matches, Dedup2 finds visually similar photos: slightly different burst frames, retakes from a half-step to the side, and edited or re-saved copies Photos treats as separate images. • Adjustable sensitivity — High, Medium, or Low — to control how similar photos must be before they're grouped • Automatic quality ranking marks the weaker photo in each pair, using megapixels, subject focus, face quality, and aesthetic score • Auto-select as you scroll: the lower-quality photo is marked for you, so cleaning up is just tap-and-confirm • Browse duplicates scoped to a specific year or album to tackle your library in pieces • Find duplicate videos too (experimental): a Photos/Videos switch groups near-identical clips — re-shares, repeated takes, 4K/1080p exports of one source — and flags the weaker clip by resolution, duration, and bitrate COMPRESS LARGE PHOTOS AND VIDEOS Modern cameras produce enormous files. Dedup2 lists the photos and videos taking up the most space and resizes them to a sensible target — recovering storage while keeping quality high. • Photos: choose a target of 4, 8, 12, or 24 MP • Videos: choose a target resolution of 720p, 1080p, or 4K — switch between Photos and Videos in the Compress tab • Sort by potential savings, resolution, file size, or date • All metadata is preserved — GPS location, timestamps, color profiles, and EXIF data stay intact • Compressed copies are saved to your library; originals move to Recently Deleted, recoverable for 30 days BACKFILL MISSING LOCATIONS Screenshots, downloads, AirDrops, and photos taken with Location Services off often have no GPS. Dedup2 finds photos missing a location and borrows coordinates from another photo you took around the same time — so a GPS-less shot can inherit where you were. • Configurable matching window, from ±5 minutes up to ±4 hours • Every suggestion is reviewable: compare target and donor photos, see the time gap, and preview the proposed spot on a map before applying • Sort by closest match or photo date, and scope to a year or album • Screenshots are excluded by default • Reversible — a filled-in location can be reverted in Photos at any time PRIVATE BY DESIGN There is no account and no cloud. Analysis, quality scoring, and compression all happen locally — your media is never uploaded. The Location feature uses Apple Maps for place names and map previews, sending a photo's coordinates (never the photo itself) to Apple, like the built-in Photos app. SAFE AND REVERSIBLE Nothing is deleted or changed without your confirmation. Removed originals go to Recently Deleted (recoverable for 30 days), and filled-in locations can be reverted in Photos — so you can always change your mind. WORKS WITH iCLOUD PHOTOS If your library lives in iCloud, Dedup2 can fetch iCloud-only photos and videos so they're analyzed too — not just the items already on your device. You stay in control: choose Wi-Fi only (the default), Wi-Fi & cellular, or off for a strictly local scan, all from Settings. FAST AND SMART Dedup2 caches its analysis so repeat scans are quick. Items are processed in batches and results stream in as they're found — no waiting for the whole library to finish. Requires iOS 18 or later. Free up space, fill in missing locations, and keep your best shots — all in one private, on-device app. COMPLIANCE Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://tianle91.com/2026/06/09/Dedup2-Privacy-Policy.html

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Dedup2 now cleans up videos too — plus a faster, smoother experience all around. What's new since 1.0: • Video duplicate finder, with scoring tuned for video to help you pick the best take to keep • Compress your videos to save space, keeping timestamps and metadata intact wherever possible • Location backfill now works with videos, so missing GPS gets filled in just like your photos • Progress indicators in the Duplicates tab, so you always know where a scan stands • Faster duplicate scans and smoother scrolling in the Duplicates and Compress tabs • Better layout on wider screens and in landscape • Clearer subscription and quota messaging • Improved stability when your Photos library changes while Dedup2 is open • Handle processing of iCloud assets more transparently and allow tweaking of analysis strategy As always, everything runs on-device — your photos and videos are never uploaded — and deletions go to Recently Deleted so they're easy to recover. Thanks for using Dedup2!

Version 2.2

The developer, Tianle Chen, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    Accessibility

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Information

    Seller
    • Tianle Chen
    Size
    • 2.5 MB
    Category
    • Utilities
    Compatibility
    Requires iOS 18.0 or later.
    • iPhone
      Requires iOS 18.0 or later.
    • iPad
      Requires iPadOS 18.0 or later.
    • Mac
      Requires macOS 15.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 2.0 or later.
    Languages
    • English
    Age Rating
    4+
    In-App Purchases
    Yes
    • Dedup2 Pro Lifetime $19.99
    • Dedup2 Pro Monthly $0.99
    • Learn More
    Copyright
    • © Tianle Chen
  • Developer Website
  • Privacy Policy

    • More by Tianle Chen