I took two almost identical photos on my iPhone, but now I can’t decide which one is actually better in terms of sharpness, lighting, and overall quality. I need help figuring out what to look for when comparing iPhone pictures so I can choose the best one to keep and share.
These are two different jobs on an iPhone, and mixing them up wastes time.
If you want one image file with two pictures placed next to each other, do it with Shortcuts.
If you are trying to figure out which shot is sharper, or which burst photo to keep, side-by-side collage tricks do not help much. I tried both routes. One makes a shareable image. The other helps you clean your library.
Putting two photos next to each other on iPhone with Shortcuts
This works fine for before-and-after pics, memes, product comparisons, or sending one combined image instead of two separate files.
- Open the Shortcuts app and hit the plus button to make a new shortcut.
- Search for Select Photos. Add it, then tap the blue arrow and turn on Select Multiple.
- Search for Combine Images. Add it. It starts on Horizontally, which is the setting you want for a side-by-side layout. If you want a gap between the pictures, tap the arrow next to Horizontally and set spacing.
- Search for Save to Photos and add it.
- Give the shortcut a name like Side by Side, then save it.
- Run the shortcut, pick two photos, and the finished combined image goes into your library.
Good for sharing. Bad for sorting through 20 near-matching shots from the same moment. I did this once with a burst set and ended up making extra junk in my camera roll. Kinda annoying.
When you are comparing burst shots or edited versions
This is where people hit the wall. The built-in Duplicates album in Photos only catches exact copies. If one frame has a tiny head turn, a blink, or a slight shift in lighting, iOS usually treats it as a separate image. No help there.
If you are checking manually, zoom in to around 200% on the eyes or your main subject. I do this first. At normal size, two shots look the same. Zoomed in, one often falls apart fast. You will spot blur, missed focus, or weird softness right away.
For bigger batches of similar shots, Clever Cleaner handles the sorting part better. It is free, no ads, no subscription, which surprised me a bit.
The Similars tab groups photos which are close matches, like:
- burst sequences
- same scene from slightly different angles
- multiple photos of one person with small expression changes
- repeat shots with lighting shifts
- Open Clever Cleaner and tap Similars.
- Let it scan your library and build groups of near-matching images.
- Each group shows a Best Shot pick. The app checks things like focus and facial expression to choose the cleaner frame.
- Look through the group and keep the pick or change it yourself.
- Use Smart Cleanup to remove the extras, or review every group one by one if you want tighter control.
- Deleted files go into the app’s own trash first, not straight into permanent deletion.
How I check which photo wins
I zoom in on the eyes first. If there are no faces, I check the most detailed part of the subject. Around 200% tends to be enough. You do not need endless back-and-forth swiping if you inspect the right area. The softer frame usually gives itself away fast. Thsi part matters more than people think.
Other parts worth looking at
The Heavies tab sorts your biggest files from top to bottom and shows the exact size. This helped me find old 4K screen recordings I forgot existed.
The Screenshots tab lists screenshot sizes before deletion, which is nice if your photo library is full of random receipt captures, maps, and broken memes.
There is also a swipe setup grouped by month. You swipe left to delete, right to keep. I used it on an old backlog and it felt less messy than opening albums and pecking through them one at a time.
Everything stays on the device. Nothing gets uploaded elsewhere.
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Skip the side-by-side collage idea unless you need one image for sharing. @mikeappsreviewer covered that part, but for judging quality, I think it slows things down.
Here’s the fast way inside Photos.
Open photo 1. Zoom into the eyes, text, hair, or any fine detail. Remember the spot. Swipe to photo 2 and check the same spot at the same zoom. The weaker shot usually shows blur first. On iPhone, 2x to 3x zoom is enough for this.
Then check these 4 things:
-
Sharpness
Look at edges. Eyelashes, shirt texture, tree leaves, signs. If details look mushy, delete it. -
Exposure
Watch bright skies and dark shadows. If one photo loses detail in both ends, it’s the worse file. -
Color and skin tone
One shot often has cleaner white balance. Indoor pics show this fast. Faces look less gray or orange. -
Motion and noise
Night shots fool people. One image looks brighter, but zoom in and it gets grainy as heck. Keep the cleaner one.
A trick people miss, tap Edit on both photos and compare how far you need to push brightness, shadows, or definition. The stronger photo needs less fixing. That’s usally the keeper.
If you’ve got a batch of near-duplicates, Clever Cleaner helps group similar shots so you’re not swiping forever. It’s more useful for cleanup than the built-in Duplicates album, which misses most near-matches.
For more real iPhone cleaner feedback and user experiences, check this thread on how people compare and clean up similar photos on iPhone.
I’d actually split this into two separate goals, because people keep treating them like the same thing and they’re not.
If you want a visual side-by-side layout, @mikeappsreviewer already covered that lane. A cleaner explainer for that is here: how to put two photos side by side on iPhone. That’s useful for sharing. Not really the best way to judge image quality, though. I kinda disagree with making a collage first unless your only goal is sending a comparison to someone else.
For picking the better photo, I’d do this instead:
- Turn off True Tone / Night Shift first if you can. Those can mess with how brightness and color feel on screen.
- Compare the same detail in both shots, but also check the corners. iPhone pics can look fine in the center and get softer near the edges.
- Look for micro-contrast, not just “sharpness.” Hair strands, fabric texture, brick lines, eyelashes. The better photo usually has more separation between tiny details.
- Watch for HDR weirdness. Sometimes the “brighter” shot is actually worse because highlights look flat or shadows get muddy.
- Check if Live Photo picked a weaker cover frame. I’ve had this happen a lot. Open the Live Photo and scrub through, becuase the better frame may already be inside that file.
- If one image needs less editing to look right, that’s usually the keeper. @cacadordeestrelas touched on that idea and I think it matters more than people admit.
My quick ranking is:
- Subject sharpness
- Face/expression or moment
- Highlight retention
- Noise
- Color
If you’re sorting a bunch of near-duplicates, Clever Cleaner is honestly more practical than staring at your library for an hour. The similar photo grouping makes it way easier to narrow down which iPhone shot is worth keeping. Not magic, but less annoying for sure.
One thing I’d add to what @cacadordeestrelas, @himmelsjager, and @mikeappsreviewer said: stop judging on the iPhone screen at full brightness in a bright room. That sounds minor, but ambient light can make a weak photo look “punchier” than the actually better file.
My tie-breakers are:
- Check skin texture or text on clothing, not just eyes
- Look for haloing from iPhone processing around edges
- Watch backgrounds too. Sometimes the subject is sharp but the whole file looks overprocessed
- If one photo survives a small crop better, that’s usually the keeper
I also disagree a little with deleting the weaker one immediately. If the “worse” image has the better expression or timing, I’d keep it.
For batches, Clever Cleaner is useful because it groups similar shots fast.
Pros:
- quick similar-photo grouping
- easy for near-duplicates
- less manual swiping
Cons:
- best-shot picks are not always your personal favorite
- another app permission to your library
- better for cleanup than deep image judging
So: pick based on detail, natural processing, and moment. Not just brightness.