Comparison

DxO ONE vs XP4N

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

XP4N

Capture stunning panoramic photos with a cinematic aspect ratio. Emulate the look of 8 distinct film types, from moody night shots to soft daylight portraits. Enjoy a simple, ad-free, and subscription-free photography experience.

Highlights
  • 65:24 cinematic aspect ratio
  • 8 distinct film type simulations
  • No ads, subscriptions, or in-app purchases
  • Haptic and visual feedback
  • EV compensation by swiping
  • Save as lossless HEIF files
  • EXIF and GPS data saving
Features
Read full description

Based on the legendary XPAN with its unique cinematic panoramic 65x24 images, XP4N turns any scene into a movie set; every shot into a movie still. - Shoot in the amazing 65:24 cinematic aspect ratio - Simulate 8 distinct film types (some inspired by popular film types, such as Cinestill 800T) - NO ADS, NO SUBSCRIPTIONS, NO IN-APP-PURCHASES! - Use all available lenses - Haptic and visual feedback when taking pictures - Use volume up key as shutter button - EV compensation by swiping - Access to the high-resolution sensor (if available and enabled in settings) - Option to save as lossless HEIF files - Saves EXIF and GPS data in photos This app is designed to simulate the cinematic qualities of the XPAN, including emulation of 8 distinct film stocks that are often paired with this camera: NIGHT MODE Based on the Cinestill 800T film character with its moody teal cast and signature "halation" (red halos) around bright spots in the image. BALANCED MODE Inspired by Vision3 250D film stock, with its versatile personality and typical Hollywood-style color and contrast curves. DAYLIGHT MODE Based on the popular Portra 400 film; soft and warm hues and moderate contrast profile. Great for skin tones and dreamy landscapes. GRITTY MODE Inspired by the Lomography Metropolis film, which adds a "bleached" look that is reminiscent of gritty 90s movies. BLACK & WHITE MODES Following the characteristics black & white films, one mode offers a punchy and contrasty B&W style, while the other is soft and dreamy. NEON NIGHT (NEW) Enhances bright spots in night photos and adds vibrant, saturated glows for a "cyberpunk" vibe ETHEREAL (NEW) Classic soft focus mode, without the need to put grease on your lens! XP4N is consciously made to be the ultimate one-trick-pony. A point and shoot camera with only a single button: the shutter button. The internal image processing engine does the rest, based on your preferred film mode setting. (so don't expect deep camera controls... ;-). The resulting images are carefully tuned to have the pleasant silky quality of film and to get away from the oversharpened, hyper-punchy look typical of today's digital cameras.

Screenshots

DxO ONE4 screens
XP4N4 screens

Verdict

The call

The clearest difference is price: DxO ONE at Free against XP4N's $1.99. DxO ONE also leads on device support (4 vs 2) and iOS requirement (10.1 vs 15.6). XP4N's advantage is rating (4.7 vs 3.6) and review sentiment (87% vs 47%). On ratings volume, ads and in-app purchases 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

DxO ONE is free to download; XP4N costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

XP4N holds the better App Store score, 4.7 against 3.6. Both are backed by a comparable volume of ratings — 35 and 44 respectively. Written reviews point the same way: 47% of DxO ONE's written reviews are positive against 87% of XP4N's.

UpkeepUpdate frequency

DxO ONE ships an update every 6 weeks, XP4N every 2 days. The most recent releases landed on October 16, 2026 and October 19, 2026 respectively.

Scorecard7 real differences · 3 level
DxO ONE versus XP4N: the parameters behind the verdict, then further details
ParameterDxO ONEXP4N
PriceFree — better$1.99
Rating3.6 (35 ratings)4.7 (44 ratings) — better
Positive reviews46.5% of reviews86.8% of reviews — better
Number of ratings3544 — better
Update frequencyEvery 6 weeksEvery 2 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPod
Requires iOS10.1 — better15.6
Further details — not scored
Size131 MB3 MB
Age rating4+4+
DeveloperDxO LabsBram Bos

Customer experience

DxO ONE

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

XP4N

All ratings44 ratings
Positive95.5%
Neutral4.5%
Negative0.0%
Written reviews53 reviews
Positive86.8%
Neutral11.3%
Negative1.9%

Bugs and requests

DxO ONE

Not enough reviews yet to summarise bugs or requests.

XP4N

Reported bugs

2 issues
  • App feels laggy at times
  • 48MP camera option doesn't increase image resolution

Requested features

10 requests
  • Portrait mode
  • Tap to focus and focus/exposure lock
  • Selfie mode
  • Self-timer
  • HDR or max-latitude mode for post-processing
Show 5 more
  • No-filter mode
  • Tri-X 400 film simulation
  • Sprocket emulation
  • Ability to change focus point
  • Preview of image in viewfinder before capture

In-app purchases

None

DxO ONE

No in-app purchases

None

XP4N

No in-app purchases

Questions

Is DxO ONE free?
DxO ONE is free to download, with no in-app purchases.
Is XP4N free?
XP4N costs $1.99, with no in-app purchases.
Which has better reviews, DxO ONE or XP4N?
XP4N is rated higher. DxO ONE averages 3.6 out of 5 from 35 ratings, while XP4N averages 4.7 from 44 ratings.
Do DxO ONE or XP4N have ads?
Neither DxO ONE nor XP4N shows ads.
Which is updated more often, DxO ONE or XP4N?
DxO ONE ships an update every 6 weeks, and XP4N every 2 days. Most recently, DxO ONE was updated on October 16, 2026 and XP4N on October 19, 2026.

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