Seamera

Fix the blue in dive photos and videos, and keep people looking natural

Seamera is an iPhone and iPad app that corrects the blue or green cast in underwater photos and videos. Its on-device AI finds people, similar shots and sea life in your photos, so the water is corrected while skin stays natural. Photos never leave your device. It is a one-time purchase with no subscription and no watermark.

Get Seamera on the App Store

For iPhone and iPad with iOS 15 or later. One purchase, no subscription.

Original: blue underwater photo of a sea turtle Corrected in Seamera: the same photo corrected
Sea turtle: Ed Lyman / NOAA, public domain. Right half corrected with the app.

Why underwater shots turn blue

Water absorbs the red part of sunlight first, so a few metres down everything you shoot shifts to blue or green. Seamera estimates what the water took away and corrects the colour of the water and the scene. What you see in the editor is what gets saved. Read the full guide.

What the water takes first

  1. Red
  2. Orange
  3. Yellow
  4. Green
  5. Blue

Illustration, not to scale. Water absorbs red light first and blue last (NOAA), which is why a few metres down everything turns blue.

What the on-device AI does

Seamera uses Apple's on-device image recognition (Vision) and, on iOS 26, Apple's on-device language model. It does not generate or repaint pixels: the colour correction itself is the same water-light correction as before, and the AI decides where and how strongly to apply it.

  • Natural skin When a person is detected in a photo, the water is corrected as usual and the person more gently, so skin doesn't turn orange or grey. A slider sets how gentle; you can turn it off. Photos only (editor, multi-photo correction, in-app camera).
  • Best shot Import up to 50 photos into multi-photo correction. Similar shots are grouped and one per group is marked as a pick, based on sharpness, exposure and the subject. Nothing is hidden or deleted.
  • Search by sea life Photos you save in Seamera are tagged on your device, so you can search "turtle", "shark" or "stingray". About 20 common subjects that Apple's built-in recognition knows. It does not identify species.
  • Type an edit Type "less green in the water", "warmer" or "leave faces as they are". Built-in phrases work on any supported iPhone; other free-form sentences need iOS 26 with Apple Intelligence turned on.
  • Suggested parts In videos of 30 seconds or longer, up to three sharp, steady parts are suggested.
  • Steadier video colour With "Adapt to depth", colour changes quickly at scene cuts and gently elsewhere, so it pulses less as you change depth.
  • Your usual look After a few saved edits, Seamera starts at the strength and tone you usually choose, always with an Undo.

Private by design

All photo analysis happens on your device and your photos are never sent anywhere. Grouping, tags, people detection and your taste history stay on the device. No account needed. To improve the app, Seamera sends usage records under a random ID, never photos, and you can turn them off in Settings.

At a glance

Works oniPhone and iPad, iOS 15 or later
PriceOne purchase includes everything. No subscription, no in-app purchases, no watermark. Price is shown on the App Store for your country.
PhotosSingle-photo editor with before/after, multi-photo correction (up to 50), in-app camera
VideoChoose a part, preview and export; steadier colour with "Adapt to depth"
LanguagesEnglish, Korean
AndroidNot available

In the app

Before and after: a blue underwater sea turtle photo corrected to natural colour in SeameraMulti-photo correction grouping similar shots with one pick per groupSearching saved photos for turtle using tags added on the deviceTyping an edit such as less green in the water in the photo editorSuggested parts of a dive video shown as chipsSeamera home screen: analysis stays on the device

Underwater photos in the screenshots: NOAA / U.S. Fish & Wildlife Service, public domain. Corrections made with the app.

Questions

Does Seamera use generative AI to change my photo?

No. It does not add or repaint anything. The AI only finds people, similar shots, sea life and the parts of a video worth keeping, and decides where and how strongly to apply the colour correction.

Are my photos uploaded?

No. All analysis runs on your device and photos are never sent anywhere. No account is needed.

Do I need iOS 26 or Apple Intelligence?

Only for free-form typed edits. Everything else, including built-in phrases like "warmer" or "less green in the water", works on iOS 15 or later.

Does it work on GoPro or other action-camera footage?

Seamera edits photos and videos in your device's photo library, so footage you have imported there can be corrected if your iPhone or iPad can play it.

Can it bring back colour the camera never captured?

No. Results depend on the original, the light and the water. Correction cannot recover detail or colour that was not recorded.

Is there a subscription?

No. One purchase includes every feature, with no in-app purchases and no watermark.

Keep your next dive in colour.

For iPhone and iPad with iOS 15 or later. One purchase, no subscription.

Get Seamera on the App Store

Guides

Why underwater photos look blue or green, and how to fix them on iPhoneHow to colour correct dive video on iPhone without the colour pulsing

Sources

Reviewed 2026-10-30, o2one