Comparison

DxO ONE vs Cobalt Image

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

DxO ONE

This app transforms your iPhone or iPad into a sophisticated control center for a professional-quality connected camera. It allows you to capture stunning photos and videos, even in low light, and offers advanced manual controls for creative photography. Easily manage, edit, and share your images directly from your mobile device.

Highlights
  • iPhone display as viewfinder
  • Advanced manual camera controls
  • Low light and SuperRAW capture
  • JPEG and RAW photo storage
  • Scene and Selfie modes
  • Photo browsing and sharing
Read full description

The DxO ONE app for iOS is designed to help you make the most of your DxO ONE camera* for iPhone® and iPad®**. The revolutionary DxO ONE is a professional quality connected camera that attaches via the Lightning connector and turns your iPhone display into a big beautiful viewfinder and sophisticated control center for the camera. With a fast f/1.8 prime lens and large 1-inch sensor, the DxO ONE lets you capture gorgeous portraits and amazing low light photos that you can instantly share with family, friends and followers. “Finally, an iPhone Camera Good Enough for a Pro” Wall Street Journal “The best camera I've ever stuffed in my shirt pocket” The Verge “The World's Smallest 1-Inch Sensor Camera by DxO Is Now Available, and It's Pretty Incredible” fstoppers This app is designed exclusively to operate the DxO ONE camera (purchased separately: http://store.dxo.com/). With the DxO ONE camera* you can: • Use your iPhone display as the viewfinder and on-screen controls for the DxO ONE camera • Browse your photos, change modes, and access all the camera’s features • Tap to instantly toggle between photo and video capture modes • Quickly access the DxO ONE Getting Started and User Guides This app provides the following features for the DxO ONE camera*: • Shoot in Auto mode to begin capturing amazing photos immediately • Tap to choose scene modes for Sport, Portrait, Landscape or Night photography • Innovative Selfie mode provides a softbox-style fill light that naturally and smoothly illuminates your face • Choose to store your photos as JPEG images, or as RAW files for the highest quality • Capture photos in extreme low light using DxO’s unique SuperRAW™ format The DxO ONE camera* provides serious controls for serious photographers, including: • One-tap access to Aperture priority, Speed priority, Program and Manual modes • Dial the variable aperture from f/1.8 to f/11 to precisely control the depth of field • Freeze action with shutter speeds up to 1/20 000 of a second • Capture a starry night sky with exposure times up to 30 seconds • Dial to adjust ISO values from 100 to a high of 51200 • Modify exposure compensation from -3 to +3 in 0.3-step increments • Toggle between Multi-zones, Center-weighted, and Spot metering modes • Tap to switch between Single-shot and Continuous Auto-focus modes • Focus with precision using the magnification loupe in manual focus mode • Leave in Auto White Balance mode or tap for Incandescent, Fluorescent, Sunny, etc. With the DxO ONE camera* connected to your iPhone you can: • Review and browse your photos and easily share them to Facebook, Twitter, Instagram and more • Tap to instantly add your best shots to a Favorites folder for quick access • Edit your DxO ONE photos using your preferred 3rd-party photos apps • Choose to store photos on both the microSD card in your DxO ONE and your iPhone (JPEG only) or on the microSD card only *Requires the DxO ONE camera, purchased separately: http://store.dxo.com/ **The DxO ONE camera made for iPhone X, iPhone 8 Plus, iPhone 8, iPhone 7 Plus, iPhone 7, iPhone SE, iPhone 6s Plus, iPhone 6s, iPhone 6 Plus, iPhone 6, iPhone 5s, iPhone 5c, iPhone 5, iPad Pro (12.9 inch), iPad Pro (9.7 inch), iPad Air 2, iPad mini 4, iPad mini 3, iPad Air, iPad mini 2, iPad (4th gen), iPad (5th gen)

About

Cobalt Image

Enhance your iPhone photos with advanced AI, HDR, and smart portrait modes. This app offers unparalleled control over non-raw images, featuring cutting-edge white balance and Luma curve adjustments. Access renowned digital and film emulations for professional-level editing.

Highlights
  • AI-enhanced picture processing
  • HDR and smart portrait modes
  • Advanced color models for HEIC files
  • Unprecedented control over non-raw photos
  • White balance and Luma curve adjustments
  • Renowned digital and film emulations
  • Direct editing from Apple Photos
Features
Read full description

Please note that Cobalt Image PHOTO is available through subscription plans. The Full Access Yearly subscription provides a 7-day trial period during which you can try the full app and decide to cancel at any time. Our Digital and Film packs are renowned for their accuracy and are now available for all images taken by your favorite device. Your AI-enhanced pictures with HDR and smart portrait mode will be the starting point for our emulations. Cobalt Image PHOTO introduces a new advanced tool powered by the latest color models, specifically designed for treating AI-enhanced iPhone HEIC files. Leveraging the best color science available, it enhances and edits your cherished memories captured by the iPhone. Experience unparalleled freedom with our image editor, where you’ll be astonished by the unprecedented level of control over your non-raw photos. Our advanced color pipeline, featuring cutting-edge white balance and Luma curve adjustments, elevates the app to extraordinary heights, setting a new standard in photo editing. Features: - A complete set of renowned emulations made by Cobalt, both Digital and Film (Film available on Full Access subscription) - Advanced BW scientific conversion - Advanced White Balance - Luma curve on CIECAM16 - RGB curves on ProPhoto - Brightness, Contrast, Saturation all on CIECAM16 - Clarity - Structure - Advanced grain - Vignette The app can also be accessed directly from Apple Photos through the sharing function, allowing for direct editing of the selected photo. Standard Apple Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

DxO ONE4 screens
Cobalt Image4 screens

Verdict

The call

The clearest difference is rating: DxO ONE at 3.6 against Cobalt Image's 2.3. DxO ONE also leads on in-app purchases (none vs 3) and ratings volume (35 vs 6). Cobalt Image's advantage is update cadence (every 5 days vs every 6 weeks) and review sentiment (56% vs 47%). On price and ads there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Cobalt Image sells 3 in-app purchases, starting at $3.49 per month. DxO ONE asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

DxO ONE holds the better App Store score, 3.6 against 2.3. That said, the two scores are not equally well evidenced: DxO ONE has 35 ratings behind it against 6, so its average is the more settled of the two. Written reviews complicate that: 47% of DxO ONE's written reviews are positive against 56% of Cobalt Image's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

DxO ONE ships an update every 6 weeks, Cobalt Image every 5 days. The most recent releases landed on October 7, 2026 and October 8, 2026 respectively.

Scorecard8 real differences · 2 level
DxO ONE versus Cobalt Image: the parameters behind the verdict, then further details
ParameterDxO ONECobalt Image
PriceFreeFree
Rating3.6 (35 ratings) — better2.3 (6 ratings)
Positive reviews46.5% of reviews55.6% of reviews — better
Number of ratings35 — better6
Update frequencyEvery 6 weeksEvery 5 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterSubscription
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPod
Requires iOS10.1 — better15.0
Further details — not scored
Size131 MB203 MB
Age rating4+4+
DeveloperDxO LabsCobalt Image LTD

Customer experience

DxO ONE

All ratings35 ratings
Positive65.7%
Neutral5.7%
Negative28.6%
Written reviews43 reviews
Positive46.5%
Neutral11.6%
Negative41.9%

Cobalt Image

All ratings6 ratings
Positive33.3%
Neutral0.0%
Negative66.7%
Written reviews9 reviews
Positive55.6%
Neutral0.0%
Negative44.4%

In-app purchases

None

DxO ONE

No in-app purchases

3 purchases

Cobalt Image

Subscriptions3
  • Cobalt Image Pro Digital$3.491 Month
  • Cobalt Image Pro Monthly$5.491 Month
  • Cobalt Image Pro Yearly7 Days trial$44.991 Year

Questions

Is DxO ONE free?
DxO ONE is free to download, with no in-app purchases.
Is Cobalt Image free?
Cobalt Image is free to download, with in-app purchases available.
Which has better reviews, DxO ONE or Cobalt Image?
DxO ONE is rated higher. DxO ONE averages 3.6 out of 5 from 35 ratings, while Cobalt Image averages 2.3 from 6 ratings.
Do DxO ONE or Cobalt Image have ads?
Neither DxO ONE nor Cobalt Image shows ads.
Which is updated more often, DxO ONE or Cobalt Image?
DxO ONE ships an update every 6 weeks, and Cobalt Image every 5 days. Most recently, DxO ONE was updated on October 7, 2026 and Cobalt Image on October 8, 2026.

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