Gemini Photos vs Crumb: Which Duplicate Photo Cleaner Is Worth It in 2026?

If you have hundreds of gigabytes tied up in near-identical photos and raw bursts, you have probably already heard of Gemini Photos. It is one of the most-recommended duplicate finders for Mac. But after a pricing shift toward subscription billing, a growing number of users are actively searching for a Gemini Photos alternative on Mac that does not require a recurring charge. This article compares both tools honestly: what each does well, where each falls short, and how to decide which one actually fits your situation.

What Problem Are We Solving?

Duplicate and similar photos accumulate fast. iCloud syncs across devices and creates local copies. Burst shooting in Camera leaves ten nearly identical frames for every keeper. Importing the same SD card twice silently doubles a folder. On a 256 GB MacBook, photos can easily consume 80 to 120 GB, and a sizable chunk of that is redundant data you will never view again.

The core job of any duplicate photo cleaner is to surface those redundant files accurately, give you confidence that you are removing the right copy, and not accidentally delete the original or the best-quality version. That is where tools differ significantly.

Gemini Photos: What It Does and How It Works

Gemini (made by MacPaw) scans your Photos library and uses perceptual hashing to find visually similar images, not just byte-for-byte duplicates. It groups bursts, identifies near-identical shots taken seconds apart, and lets you pick a favorite or accept its auto-selection. The interface is polished and the grouping logic is genuinely good for burst photography and RAW plus JPEG pairs.

Detection Approach

• Perceptual similarity: Catches shots that differ only in slight exposure or framing variations, not just identical files.
• Burst grouping: Collapses a 12-shot burst into one review card, which reduces decision fatigue considerably.
• Photos library integration: Works directly inside the ~/Pictures/Photos Library.photoslibrary bundle, so it moves files to the Photos trash rather than deleting them from disk immediately. That gives you a recovery window.

Where Gemini Shows Friction

Gemini's scope is narrow by design. It focuses almost entirely on the Photos library. If your duplicates live in ~/Downloads, a camera import folder under ~/Pictures outside the library, or an external drive with years of unorganized backups, Gemini will not find them. It also does not surface large non-photo files, so it will not help when your disk crisis is actually caused by ~/Library/Application Support bloat or a runaway VM snapshot.

The subscription model is the other friction point many users mention. For occasional, once-a-year cleanup sessions, a recurring charge feels disproportionate compared to paying once and being done.

What to Look for in a Gemini Photos Alternative on Mac

Before evaluating any replacement, it helps to be clear about what you actually need. The requirements split into two categories.

Photo-specific needs

• Perceptual similarity detection (not just MD5 hash matching)
• Burst grouping or time-proximity clustering
• RAW plus JPEG pair detection so you do not accidentally keep only the smaller JPEG
• Safe deletion: moves to trash or Photos trash, does not hard-delete immediately

Broader disk needs

• Visibility into what else is consuming space, not just photos
• Duplicate detection across any folder, not just the Photos library
• Identification of large files, old caches, and app leftovers

If your situation is purely "I need to clean my Photos library," a Photos-specialist tool is fine. If you are trying to reclaim disk space broadly, a tool with wider scope will get you further.

How Crumb Approaches Duplicate Files

Crumb is a native Mac menu-bar app that takes a whole-disk view. Rather than specializing in one content type, it maps everything consuming space and lets you drill into duplicates, large files, caches, app leftovers, and system data in one session. It runs entirely on-device and does not require an account.

Duplicate Detection in Crumb

Crumb finds exact duplicates using content hashing across any location you point it at: your Photos library folder, your Downloads directory, an external drive, or all of the above at once. That matters when your duplicate problem is spread across multiple locations rather than contained inside a single library bundle.

The workflow is designed around a reviewable plan. Crumb shows you what it found, groups duplicates, and surfaces an "is this safe to delete?" check before removing anything. You confirm before anything is removed. This is particularly useful for users who have had a bad experience with aggressive auto-cleanup tools.

Where Crumb Differs from Gemini

Crumb does not currently perform perceptual similarity matching for photos (finding burst shots that look almost-but-not-exactly identical). If you specifically need to collapse a 200-shot burst from a wedding shoot into keepers, Gemini's visual grouping is purpose-built for that task and will be faster to work through. Crumb's duplicate detection catches exact copies, which covers a large portion of real-world duplication (same file imported twice, synced to multiple locations) but not the near-miss similarity case.

The practical split: if your problem is "I imported this SD card twice and now have 4,000 identical files in two folders," Crumb handles that well. If your problem is "I took bursts constantly for three years and need to pick the best frame from each group," Gemini's interface is better suited to that workflow.

Pricing Model Comparison

Gemini Photos has moved to a subscription. For users who clean their disk once or twice a year, the math of a subscription model versus a one-time purchase matters. Crumb is sold as a one-time purchase with no subscription required. We will not list prices here since they change, but both apps are available on their respective websites and on the Mac App Store where current pricing is always shown.

The subscription frustration with Gemini is a real signal worth taking seriously. If you find yourself avoiding running the tool because you resent paying monthly for something you use quarterly, the cleaner sitting unused provides zero value. A one-time purchase removes that friction entirely.

Doing It Manually: What macOS Gives You for Free

Before spending anything, it is worth knowing what you can do without a third-party tool.

Remove Obvious Duplicates in Photos

macOS Ventura and later added a native Duplicates album inside the Photos app. Open Photos, then look in the left sidebar under Utilities for the Duplicates album. Apple's on-device ML identifies exact and near-exact duplicates and lets you merge them in one click. This is free, built-in, and surprisingly effective for common cases.

Find Large Files with Terminal

To find files over 1 GB anywhere in your home folder:

find ~/ -size +1G -type f 2>/dev/null

For photos specifically, to find duplicates by filename pattern in your Pictures folder:

find ~/Pictures -name "*.jpg" -type f | sort | uniq -d

This is a rough approach (it only catches files with identical names, not identical content), but it is a fast starting point.

Check Your iCloud Storage Breakdown

Go to System Settings (or System Preferences on older macOS) and click your Apple ID at the top. Select iCloud, then Manage. This shows a breakdown by app of what is consuming iCloud storage. Often the largest culprits are Photos and Messages attachments, not apps.

Which Tool Should You Choose?

Here is the honest breakdown by use case.

• You shoot bursts heavily and want visual grouping: Gemini Photos is purpose-built for this. Its perceptual similarity grouping will save you hours of manual review. Accept the subscription if the workflow is worth it to you.
• You have duplicates scattered across folders, drives, and locations: Crumb's whole-disk view and cross-folder duplicate detection will surface more of your actual problem. The one-time purchase model also fits better for infrequent use.
• You want to start free: Use the native Photos Duplicates album first. It is built into macOS and handles most common library duplication without any third-party tool.
• You have a broader disk space problem (caches, app leftovers, system data): Neither tool specializing in photos will fully address this. Crumb's whole-disk map is designed for exactly this broader investigation.

A Note on Safety

Regardless of which tool you use, keep one practice in mind: verify your backup before any bulk deletion. Time Machine, an external drive copy, or a confirmed iCloud backup means that even if a tool removes something you wanted, you have a recovery path. This is true for Gemini, Crumb, and any other cleaner.

Both Gemini Photos and Crumb are legitimate tools with real strengths. The right choice depends on whether your problem is photo-library-specific or whole-disk, and whether a subscription or a one-time purchase fits how often you actually clean. If you are on the hunt for a Gemini Photos alternative on Mac because the subscription model stopped making sense, Crumb is worth a look, especially if your disk issues go beyond photos alone.