Four jobs, four different apps
"Best photo app for Instagram" bundles four separate tasks, and the reason the answers online contradict each other is that everyone is answering a different one.
Editing the photo. Colour, exposure, crop, retouch. This is where Lightroom's free tier and Snapseed live, and where Instagram's own tools are worst. Anything you do inside Instagram is applied to an already-compressed copy.
Sizing and cropping. Instagram's aspect ratios are fixed, and a photo composed for one of them looks better than a photo cropped into it at the last second. Our Instagram photo sizes guide has the current numbers.
Choosing which photos to post. The hardest part of a carousel and the one no editing app helps with. A set of eight where two are weak reads worse than a set of five that are all good.
Captioning and scheduling. Separate again, and mostly a writing problem rather than an app problem. We have a page on apps that write Instagram captions covering that half.
Almost nobody needs one app for all four, and the apps that claim to do all four tend to be mediocre at each.
Compared: best for, and the real weakness
| App | The job it does | Best for | Real weakness |
|---|---|---|---|
| Lightroom mobile | Editing | Saved presets applied across a whole set | Masking is paid and it is slow for a single quick fix |
| Snapseed | Editing | Free healing and selective edits on one photo | No preset system worth using for a consistent grid |
| Apple Photos | Editing and cropping | Fast crops to 4:5 and one-tap Auto | Cannot save or reuse an edit across photos |
| VSCO | Editing | A consistent colour palette with no skill required | The presets that define the look are members only |
| Instagram's own editor | Editing | A last-second straighten | Weak tools, and it edits an already-compressed copy |
| Canva or Unfold | Layout | Story templates and text layouts | Templates are recognisable, and the good ones are paid |
| Edits, by Instagram | Video | Free vertical video editing with no watermark | Locked to vertical, and it is a video tool not a photo one |
ShutterAI is not in the table, being ours and unreleased. Note below.
Export sizes, and what Instagram does to your photo
Instagram re-encodes every photo you upload. You cannot prevent that, but you can stop it from being the thing that damages your photo.
Use the portrait ratio. A 4:5 portrait crop occupies more of the screen in the feed than a square or a landscape frame, which is the single easiest change to make and the one most people never make. Compose for it when you shoot rather than cropping into it afterwards, because a crop from a horizontal frame throws away resolution and usually the composition too.
Export at a sensible size, not the largest possible. Uploading a very large file does not produce a better result, because the re-encode happens regardless. Exporting at roughly the size Instagram displays gives the compressor less work to do and produces a cleaner result than handing it something enormous.
Watch out for fine grain and heavy noise. Compression handles smooth areas well and random noise badly, which is why a heavily grained film-look photo often comes out blotchy after upload. If a photo is going to Instagram and you have a grain slider, use less of it than you would for a photo you are keeping.
Do the final crop before you upload. Cropping inside Instagram works on the copy it has already processed. Crop and export from your editor, then upload the finished file and change nothing in the app.
Consistency beats quality on a grid
A profile is looked at as nine squares at once far more often than as individual photos. That changes what matters.
One treatment applied to everything beats a great edit applied to one photo. This is why Lightroom's free tier is the recommendation at the top of this page: you build one edit, save it as a preset, and apply it to everything for the next six months. Consistency is what people read as having a style.
A carousel should have a weakest photo you are still happy with. Most people post the eight photos they have rather than the five that work. The two weak frames are what the set is judged on. Our photo picker page is about doing that cut properly, and there is a free browser tool at photo dump picker for it.
Colour temperature is the thing that jars across a grid. A warm photo next to a cold one is more noticeable than a sharp photo next to a soft one. If you fix one thing across a set, fix the white balance so they agree.
Vary the framing, not the treatment. Wide, close, detail, person, place. That is what stops a consistent grid from looking monotonous, rather than switching filters.
The video half of the question
A large share of Instagram is now video, and the photo apps above are irrelevant to it.
Edits, Instagram's own video app, is free, exports without a watermark, and handles captions, cuts and audio for vertical video. It is the obvious first choice precisely because it is free and made by the platform, and its main limitation is that it is locked to a vertical frame.
CapCut remains the most capable free-tier mobile video editor and has the largest library of templates and effects, at the cost of a heavier interface and a more aggressive upsell.
The stock Camera app is still where you should film, for the stabilisation reasons covered on our video camera app page. Film in the stock app, edit in Edits or CapCut.
One thing worth knowing: video uploaded to Instagram is compressed harder than photos, and fast motion suffers most. A clip with a lot of movement will look noticeably worse after upload than the same clip with a static camera.
Where ShutterAI fits
Our app, not yet released, so this is disclosure rather than a recommendation. The Instagram-shaped parts are Photo Dump curation, which cuts a large camera roll down to a set that works together, Stretch the Frame, which extends a photo to a different aspect ratio rather than cropping into it, and captions written in your own voice from examples you give it.
It comes to iPhone this autumn, free to start, and it is not an editor. For posting this week, Lightroom's free tier and a saved preset will do more for your grid than anything else on this page. The waitlist is here.
Questions people ask
What is the best photo app for Instagram?
Lightroom's free tier for editing, because saved presets are what make a grid look consistent, and Snapseed for one-off fixes. Avoid editing inside Instagram itself, since its tools are weak and it works on an already-compressed copy of your photo.
What size should I export photos for Instagram?
Use a 4:5 portrait crop for the feed, since it takes up the most screen space, and export at roughly the size Instagram displays rather than the largest file you have. Our Instagram photo sizes guide has the current numbers for feed, stories and reels.
Why do my photos look worse after uploading to Instagram?
Instagram re-encodes every upload. Heavy grain, noise and fast motion suffer most because compression handles random detail badly. Reducing grain slightly before export and cropping in your editor rather than in the app both help.
Is editing in Instagram bad?
It is the weakest editor of any app on this page, and it works on a copy Instagram has already processed. Edit and crop in a real editor, export the finished file, and change nothing after you upload it.
What app do Instagram creators actually use?
Most use Lightroom with a saved preset, or VSCO if the look they want is one of its presets, and Snapseed for retouching. For video the common answers are Instagram's own Edits app and CapCut, both free at the tier most people need.