# Dedup2: Photo Cleaner — Dedupe, compress, fill GPS > Dedupe, compress, fill GPS (iPhone/iPad app by Tianle Chen.) - Source: https://appshunter.io/ios/app/dedup2-photo-cleaner/id6777753354 (this page in markdown: same URL + `.md`) - Developer: [Tianle Chen](https://appshunter.io/developer/1749428896) - Category: Utilities, Photo & Video - Price: Free with in-app purchases - Age rating: 4+ - Requires: iOS 18.0 · 5 MB - Languages: American English, Chinese (Simplified, China) - Released: 2026-06-14 - Data updated: 2026-09-10 - User reviews in markdown: https://appshunter.io/ios/app/dedup2-photo-cleaner/id6777753354/reviews.md ## What is Dedup2? Dedup2 cleans up and enriches your photo library. Detection, quality scoring, and compression all run on your device 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 in Photos, which only surfaces exact matches, Dedup2 finds visually similar shots: 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 • Favourites are flagged: anything you've favourited in Photos is badged with a heart, and if a delete batch includes a favourite you're warned with a one-tap "Delete non-favourites only" option — and you can favourite a photo from inside Dedup2 • 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 Dedup2 finds oversized photos and videos and resizes them to your chosen target, recovering storage while keeping quality high. • Photos: choose 12 or 24 MP, a custom target from 2 to 100 MP, or Original to flatten edits and remove the stored pre-edit original • 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 first; you decide whether their originals move to Recently Deleted BACKFILL MISSING LOCATIONS Screenshots, downloads, AirDrops, and photos taken with Location Services off often have no GPS. Dedup2 finds them and borrows coordinates from another photo taken around the same time — so a GPS-less shot inherits 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-app from your fill history, or in Photos, at any time PRIVATE BY DESIGN No account, 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 at any time. WORKS WITH iCLOUD PHOTOS If your library lives in iCloud, Dedup2 can fetch iCloud-only items so they're analyzed too — not just what's already on your device. You choose: Wi-Fi only (the default), Wi-Fi & cellular, or off for a strictly local scan. FAST AND SMART Dedup2 caches its analysis so repeat scans are quick. Results stream in as they're found — no waiting for the whole library to finish. Requires iOS 18 or later. 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 ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Dedup2 Pro Monthly | $0.99 | per month | **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Dedup2 Pro Lifetime | $14.99 | one-time | ## Version history (last 5 releases) ### 7.20 — 2026-09-01 What's new since 6.8: # Language Choice * **Choose Dedup2's Language:** Settings now lets you follow the system language or select English or Simplified Chinese without changing the language of your device. * **Switch Without Losing Your Place:** The interface refreshes safely in the selected language while preserving your current tab. Active compression and other media work can finish without being terminated. * **Now available in Simplified Chinese:** Dedup2's core interface, settings, status messages, permissions, and confirmation flows are localized, with a matching App Store listing and screenshot creative. --- # Choose What Dedup2 Includes * **Exclude Albums:** Duplicates, Compress, and Location can each skip albums you choose. Exclusions are independent for every workflow, apply to both photos and videos, and are clearly summarized above your results. * **A Better Album Picker:** Search your albums and sort them by most items, fewest items, or name to find the ones you want quickly. --- # Safer, Clearer Actions * **Consistent Confirmations:** Important actions now use clear, app-wide confirmation sheets with the exact item counts and media types involved. * **Compression You Can Stop:** Compression now shows progress, remaining work, and an estimated completion time. Cancel stops the active job; completed copies stay in the normal review flow so you still decide whether their originals are deleted. * **Steadier Duplicate Review:** Duplicates keeps your in-progress marks when iCloud analysis finishes or photo dates change. Pull to refresh when you want the latest; the prompt names the reason: Library changed, Dates changed, or iCloud analysis ready. * **Smarter Compression Results:** Compress results use easy-to-scan cards with before-and-after resolution, size, and savings. When a batch finishes, Dedup2 reports successes and failures before offering to delete only the originals whose compressed copies were saved. * **More Control Over Location Suggestions:** Use Do Not Suggest to hide a target from automatic suggestions until you restore it, or dismiss only a specific target-and-donor pairing while still allowing a better match later. * **Simpler Selection:** Larger selection controls are easier to see and tap. A clear Deselect All button replaces the previous icon-only bulk controls and affects only the list you're viewing. --- # A More Consistent Review Experience * **Unified Cards and Detail Views:** Duplicates, Compress, and Location now share consistent cards, thumbnail grids, selection controls, paging, and floating detail panels. * **Improved Location Review:** Location suggestions group targets beneath their donor in an adaptive grid, with the time gap shown on every thumbnail. Dedicated Target / Map and Donor / Map views make proposed fills and donor corrections easier to understand. * **Synchronized Video Comparisons:** Original and compressed video frames stay aligned through playback, looping, pausing, zooming, and rotation. Previews start muted, can play matching audio, and video thumbnails now show clip length. * **Cleaner Comparisons:** Duplicate details show a clear suggested keep or removal alongside scores in your chosen priority order. Compress uses a simpler Original / Compare workflow with savings visible immediately. * **Suggested Keepers at a Glance:** Photo and video duplicate thumbnails now identify the shot Auto will keep, using the same sparkles mark as the Auto action. * **Natural Dismissal:** On iPhone, detail views use system sheets you can swipe down when media isn't zoomed. Wide iPad layouts keep immersive full-screen presentation with centered controls. As always, everything runs on-device — your photos and videos are never uploaded. ### 6.8 — 2026-08-06 What's new since 4.9: # Visuals & Media Viewport * **Edge-to-Edge Media View:** Photos and videos fill the screen edge to edge. At 1× zoom they fit cleanly between the floating top and bottom bars; zooming in still shows real media behind the translucent chrome. * **Floating Material Chrome:** A compact, centered top bar and bottom action controls float above photos, videos, and maps with translucent material that blends into the status bar and home indicator. * **Cleaner Top Header:** Filenames and item positions stay visible in the top bar across Duplicates, Compress, and Location. Extra technical details stay tucked behind a single Details button, which remains open while you page through a set. * **Accessibility Enhancements:** Translucent chrome switches to opaque backgrounds when Reduce Transparency is on, and subtle fade effects replace sliding animations when Reduce Motion is active. --- # Workflows & Selection Tools * **Streamlined Location Review:** Redesigned Location editing with horizontal swipe paging, clear donor-to-target metadata flows, and simple single-action buttons (*Mark to fill* vs. *Remove location*). * **Clearer Secondary Actions:** Duplicates and Compress rows use a menu for Dismiss, Clear, and Compress instead of trailing swipes; Location Edit History keeps swipe-to-revert for undo. * **Bulk Selection & Dismissal:** Bulk dismissal lives in the selection bars across Duplicates, Compress, and Location. Manage Dismissed in Settings lets you review and restore items one by one or all at once, with a stacked preview of each set. * **Polished Duplicate Cards:** Each set’s time and Delete / Auto controls sit under the tiles as a single footer, without a redundant member count. * **Faster Compress Previews:** Opening a photo starts on Original immediately; Compare and Compressed previews generate only when you ask for them. Megapixel metrics and side-by-side comparisons are available in Compress mode. --- # Background Sync & Performance * **Fewer Distracting Prompts:** Non-visual metadata tweaks and background iCloud syncs no longer trigger constant "refresh needed" popups—your library updates quietly in the background. * **Uninterrupted Browsing:** Pulling to refresh in Location views keeps your place on screen while queuing updates in the background. * **Smarter Video Metrics:** Compression stats now calculate storage savings based on actual encoded video file size rather than original edit history footprint. As always, everything runs on-device — your photos and videos are never uploaded. ### 4.9 — 2026-07-29 What's new since 4.8: • Thumbnails stay steady when your Photos library changes: editing or deleting one item now refreshes only that item instead of briefly reloading every visible thumbnail across Duplicates, Compress, and Location. As always, everything runs on-device — your photos and videos are never uploaded. ### 4.8 — 2026-07-27 What's new since 4.4: • Copy metadata between any two photos or videos: in Location → Manual Edit, choose a source and target, compare their capture date, location, Favourite, and Hidden values in aligned columns, then select exactly which changes to copy, replace, or clear. • For standard photos, review and selectively copy supported EXIF and camera details such as camera, lens, capture settings, dates, author, and copyright. Video and Live Photo embedded metadata stays unchanged for now. • Metadata copies are saved in Edit History alongside location fills, so you can restore the target's previous selected values later — even after restarting the app. • Manual location fill and metadata copy now share one clearer, consistent two-mode workflow. • Smoother duplicate review on large libraries: results now load in small batches as you approach the end instead of handing the entire saved list to the screen at once; thumbnails are reused when you scroll back, and rapid auto-select feedback stays responsive without overwhelming the system. • Fixed a startup crash that could affect large saved duplicate result sets on a real device. • Fixed Compress reanalyzing unchanged photos and videos after every app restart when Photos did not provide a modification date. As always, everything runs on-device — your photos and videos are never uploaded. ### 4.4 — 2026-07-21 What's new since 2.15: • Made for iPad and Mac: Dedup2 now uses the full width of the window instead of a narrow centred column, the full-screen photo viewer fills the whole screen when you tap a duplicate, and in landscape a sidebar keeps every section one tap away — tucking itself away in portrait for a roomier view. • Much faster Duplicates on large iCloud libraries: if most of your photos live in iCloud (Optimize iPhone Storage), Dedup2 remembers what it already found and only re-checks a group once its iCloud photos have downloaded — so opening Duplicates stays fast instead of restarting from scratch every launch. • Favourites, protected: photos and videos you've favourited in Photos are badged with a heart in your duplicate sets. Before deleting, if the batch includes a favourite, Dedup2 tells you and offers a one-tap "Delete non-favourites only" — so a keeper is never swept up by a quick scroll-and-confirm. • More control over photo compression: choose a 12 MP, 24 MP, or Custom target — plus a new Original mode that finds edited photos still holding their untouched original and reclaims that space by flattening them (your edit is kept, the redundant original removed). • Smarter video compression: a new "Estimated savings per minute" sort puts the clips that free the most space for the least playback time first, so short high-resolution videos rise to the top. • Choose your thumbnail size: a new Small / Medium / Large control in Settings sets how large thumbnails appear across every tab, so you can scan more at a glance or see more detail. • Location backfill for videos: review videos missing GPS separately from photos with a Photos / Videos switch, and skip panoramas, slo-mo and time-lapse from suggestions. 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. ## Apps similar to Dedup2 | App | Rating | Price | Category | | --- | --- | --- | --- | | [Photo Recovery: Clean Storage](https://appshunter.io/ios/app/photo-recovery-clean-storage/id6762252881) | 4.0 (26) | Free | Utilities | | [Cleansora - AI Cleaner](https://appshunter.io/ios/app/cleansora-ai-cleaner/id6758730740) | 3.5 (35) | Free | Utilities | | [3d Scanner App™](https://appshunter.io/ios/app/3d-scanner-app/id1419913995) | 4.5 (15,859) | Free | Utilities | | [Public Mobile](https://appshunter.io/ios/app/public-mobile/id1645306824) | 4.2 (116) | Free | Utilities | | [BlueBox](https://appshunter.io/ios/app/bluebox/id1580163685) | — | Free | Utilities | ## More apps by Tianle Chen - [Dedup](https://appshunter.io/ios/app/dedup/id6503489725) - [Dedup Lite](https://appshunter.io/ios/app/dedup-lite/id6738871467) - [WatchMyScore](https://appshunter.io/ios/app/watchmyscore/id6781288253) - [OfflineClipper](https://appshunter.io/ios/app/offlineclipper/id6783943164) All apps by Tianle Chen: https://appshunter.io/developer/1749428896 --- *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 2026-09-10.*