This is the least head-to-head comparison on this site, and pretending otherwise would be dishonest. PowerPhotos and SwipePhotos both live in the 'fix my Mac photo situation' search results, yet they solve almost non-overlapping problems.
So instead of a winner, here is a clean split of which app answers which cry for help.
PowerPhotos manages libraries; SwipePhotos empties them of junk. If you juggle multiple Photos libraries, need to merge them without duplicate chaos, or are migrating ancient iPhoto and Aperture archives, PowerPhotos is the specialist at $39.95 one-time. If your single library is bloated with tens of thousands of unreviewed photos, SwipePhotos fixes that faster, on Mac and iPhone with one purchase. Serious Mac photo hoarders often end up owning both.
SwipePhotos is our app, so read this the way you’d read any vendor comparison: we’ve kept every factual claim checkable and noted where PowerPhotos is the better pick. Facts checked against official sites and App Store listings, August 2026.
| Feature | SwipePhotos | PowerPhotos |
|---|---|---|
| Platforms | iPhone, iPad, and Mac. One purchase covers all three. | Mac only, macOS 14 or later. Direct download, not on the Mac App Store. |
| Pricing model | Weekly, yearly, or lifetime. Final pricing shows in the App Store. | $39.95 one-time; $19.95 upgrade from older versions (August 2026). |
| Core job | Review one library fast: keep or delete every photo. | Create, merge, split, and switch between multiple Photos libraries. |
| Duplicates | Similar shots and bursts grouped on-device during review. | Duplicate finder, including duplicate-aware library merges. |
| Legacy libraries | No. Current Apple Photos only. | Yes: migrates iPhoto and Aperture libraries. |
| Metadata tools | No batch metadata editing. | Batch metadata editing with templates, multi-library search, advanced export. |
| Review workflow | Swipe on iPhone, arrow keys on Mac, month- or album-scoped sessions, 30-day undo via Recently Deleted. | Not a photo-by-photo review tool. |
| Where processing happens | On-device. Photos are never uploaded. | Locally on your Mac. |
PowerPhotos facts checked against fatcatsoftware.com, August 2026 (v3.4.3). Prices change; their store page is authoritative.
The PowerPhotos emergency sounds like this: 'I have four Photos libraries across two old Macs and an external drive, one of them is from iPhoto, and I need them combined without 60,000 duplicates.' Fat Cat Software has been solving exactly that since the iPhoto days, and it shows. Library merging weeds duplicates during the merge, metadata survives the trip, and the v3.4.3 release in August 2026 means it keeps pace with current macOS.
The SwipePhotos emergency sounds like this: 'I have one library, it has 38,000 photos, I can't find anything, and iCloud wants money again.' That is a review problem. PowerPhotos can tell you two files are identical, and it will manage the library shell beautifully, but no library manager will look at your 14 near-identical sunset shots and help you keep the best one. SwipePhotos turns that into a swipe per photo, with the near-identical ones grouped by on-device ML so a burst costs one decision, and each finished month feels finished.
The archetypal Mac photo hoarder has both problems in sequence. First consolidate: PowerPhotos merges the scattered libraries into one canonical library, dedupes the byte-identical copies, and retires the old archives. Then curate: SwipePhotos works through the merged result month by month until the library only holds photos you chose to keep. Doing it in the other order wastes effort, since you'd review photos that merging would have discarded anyway.
On price, the pairing is less crazy than it sounds. PowerPhotos is $39.95 once. SwipePhotos yearly is €39.99, and there's a lifetime option if you'd rather pay once too; either way the purchase covers iPhone and iPad as well, which is where the ongoing ten-minutes-at-a-time reviewing tends to happen after the big Mac cleanout.
SwipePhotos is paywalled in the app, with weekly, yearly, and lifetime options. Final pricing appears in the App Store.
No. PowerPhotos is a $39.95 one-time purchase, with a $19.95 upgrade path from older versions and iPhoto Library Manager (checked August 2026). Fat Cat Software states all its products are one-time purchases.
It finds duplicates, including across libraries, and it weeds duplicates while merging. It is not built for photo-by-photo quality triage. That review job, including grouping near-identical bursts, is what SwipePhotos does.
No. SwipePhotos reviews the photos inside your current Apple Photos library on iPhone, iPad, and Mac. For merging, splitting, or migrating libraries, PowerPhotos is the right tool.
SwipePhotos for Mac targets recent macOS (macOS 15 and later). PowerPhotos requires macOS 14 or later. If you're on an older Mac, check both requirements before buying either.
PowerPhotos first: merge and dedupe the libraries into one. Then SwipePhotos to review what survived. Reviewing before merging means judging photos a merge would have deleted anyway.
Weekly, yearly, or lifetime. Works on iPhone, iPad, and Mac. 100% on-device.