Comparison

Spectre Camera vs STRATUM Slit Scan

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

Head to head
About

Spectre Camera

This app uses AI to create stunning long exposure photographs, making it easy to capture professional-quality shots. Remove crowds, create light trails, and achieve silky smooth water effects effortlessly.

Highlights
  • AI-powered long exposures
  • Crowd removal
  • Light trail creation
  • Silky water effects
  • Live Photos and video support
  • Automatic scene detection
Read full description

Apple iPhone App of the Year, 2019 Introducing Spectre, from the makers of Halide, one of the top camera apps in the App Store. Spectre uses AI to help you make amazing long exposure photographs. Spectre can remove crowds, turn city streets into rivers of light, make waterfalls look like paintings, and much more. Until now, it was difficult to take long exposures: from keeping the camera steady to guessing the amount of light you need. Spectre takes care of all of that! WHAT YOU CAN DO • MAKE CROWDS DISAPPEAR: Spectre helps take photos of crowded, touristy places. Simply set a medium or long duration and take a shot to erase the crowd from a location. Capture the those special moments like you remember them. • RIVERS OF LIGHT: At night, AI scene detection automatically switches modes to draw beautiful light trails, for stunning nighttime city photography or light painting. • GORGEOUS WATER: Capture waterfalls, ocean waves, fountains and more with beautiful ghostly water. LIVE PHOTOS AND VIDEO Spectre’s intelligent computational shutter takes hundreds of shots over the span of a few seconds, and saves them in an accompanying live photo. That means you can pick a different frame as your photo, apply live-photo effects, and even use the long exposure as a live-wallpaper! ENDLESS SMARTS Spectre is a packed with powerful technology from by the team that brought you Halide. From machine learning-based scene detection to computer vision aided image stabilization, Spectre is jammed full of impressive technologies to get the best possible image. DESIGNED FOR HUMANS Spectre is meticulously designed. Its dark UI is gentle on the eyes when you shoot at night. Gorgeous glowing highlights infuse it with a unique style. Custom typefaces and iconography combined with unique, smooth controls make it as tactile and delightful as an actual physical camera. Like its sister app Halide, the app is easily usable with one hand, even on the largest iPhones. HIGH-TECH SHOWCASE Build with the latest tech, Spectre isn't just a long exposure camera — it’s the cutting edge technology showcase of one of the App Store’s foremost camera apps, Halide. Here’s just a few of the latest technologies that we use in Spectre: - DCI-P3 Wide Color Pipeline - Live Photos - Metal Graphics Acceleration - Tripod Detection - Siri & Shortcuts - AI Stabilization - Machine Learning & CoreML - Computer Vision COMPATIBILITY: Spectre’s smart Automatic Scene Detection requires iOS 12. AI-based stabilization features are available on iPhone 6S and later.* For the best experience, we recommend iPhone 8 or later. On iPhone 6, Spectre captures in lower resolution. ABOUT US We’re Ben and Sebastiaan, two friends living in the San Francisco Bay Area that love building fantastic apps for photography. We hope you love Spectre! We’d love your feedback to make it even better or any reports of bugs you run into. You can always contact us directly via email: support@halide.cam, on our Twitter: @halidecamera or Instagram: @halideapp Don’t forget to share your amazing results by tagging them with #SpectreShot so we can share them on our growing social media accounts!

About

STRATUM Slit Scan

Create unique slit scan photos and videos using your device's camera. Adjust slice size, focus, and exposure for artistic effects. Supports external display output for live performances.

Highlights
  • Eight slit scan types with reverse scan
  • Adjustable slice size up to 500
  • Manual focus lock and exposure adjustment
  • Switch between front and rear cameras
  • External display output support
  • Preview photos and videos within the app
Features
Read full description

-Features- • Eight kinds of slit scans are possible with four kinds of slit patterns and reverse scan. • Tap the shutter button to take a photo. • Press and hold the shutter button or drag to the right to start recording. • Models with a high-speed camera can shoot at 240 to 1 FPS. • The slice size (number of strips) can be set up to around 500. (*1) • Manual focus lock, exposure adjustment •Use the camera flip button to switch between the inside and outside cameras. You can switch to another camera such as a triple camera by pressing and holding it. • Equipped with external display output for performance art and installation. • You can preview the taken photos and videos in the app. -Overview- Slit scan is different from the actual time when shooting with an analog camera by attaching a paper with a slit in front of the camera lens, lengthening the exposure time and moving it in the vertical direction with the slit. It is a technique to take the exposure of a single photo. Strictly speaking, STRATUM does not install a slit in front of the camera like slit scan, but it stores digitally captured data in memory, slices it in any direction, combines it for each frame and shoots in real time.  Due to the remarkable development of mobile devices in recent years, STRATUM has accumulated about 500 FHD images of 240FPS (*1) high-speed camera equipped with iOS, and composites and takes 500 photos at a time at a high frame rate of 60FPS. -Spec- In Stratum, each device limits the composition rate and the size of the composite image in order to perform the most reasonable processing possible for each device. The composite rate is different from the shooting rate. Any model capable of high-speed shooting can shoot at 240 FPS. (*2) Synthesis rate of 30 FPS, 540p on iPhone 7 30FPS, 720p on iPhone XS 60FPS, 1080p on iPhone 11 or greater It is controlled by the GPU family. Record FHD 1080p, 60FPS with A13 or greater HD, 30FPS recording with A11, A12 540p, 30FPS recording with A10

Screenshots

Spectre Camera4 screens
STRATUM Slit Scan4 screens

Verdict

The call

The clearest difference is price: Spectre Camera at Free against STRATUM Slit Scan's $1.99. Spectre Camera also leads on ratings volume (2.4K vs 2). STRATUM Slit Scan's advantage is rating (5.0 vs 4.3) and in-app purchases (none vs 1). On ads and monetization model 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

Spectre Camera is free to download; STRATUM Slit Scan costs $1.99 up front. Spectre Camera sells 1 one-off in-app purchase. STRATUM Slit Scan asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

STRATUM Slit Scan holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: Spectre Camera has 2.4K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 46% of Spectre Camera's written reviews are positive against 80% of STRATUM Slit Scan's.

Scorecard7 real differences · 3 level
Spectre Camera versus STRATUM Slit Scan: the parameters behind the verdict, then further details
ParameterSpectre CameraSTRATUM Slit Scan
PriceFree — better$1.99
Rating4.3 (2.4K ratings)5.0 (2 ratings) — better
Positive reviews45.6% of reviews80.0% of reviews — better
Number of ratings2.4K — better2
Update frequencyEvery 3 months—
AdsNoNo
In-app purchasesYesNo — better
MonetizationPaidPaid
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS16.013.5 — better
Further details — not scored
Size12 MB1 MB
Age rating4+4+
DeveloperLux Optics IncorporatedNarumi Inada

Customer experience

Spectre Camera

All ratings2,408 ratings
Positive83.5%
Neutral3.7%
Negative12.7%
Written reviews439 reviews
Positive45.6%
Neutral10.7%
Negative43.7%

STRATUM Slit Scan

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive80.0%
Neutral0.0%
Negative20.0%

Bugs and requests

Spectre Camera

Reported bugs

3 issues
  • Crashes and freezes on some devices
  • Compatibility issues with older iPhones
  • Focusing and stabilization problems

Requested features

5 requests
  • Longer exposure time options
  • More manual control over settings
  • Raw image format support
  • Apple Watch remote support
  • Improved low-light performance

STRATUM Slit Scan

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Spectre Camera

One-time1
  • Spectre Pro$4.99
None

STRATUM Slit Scan

No in-app purchases

Questions

Is Spectre Camera free?
Spectre Camera is free to download, with in-app purchases available.
Is STRATUM Slit Scan free?
STRATUM Slit Scan costs $1.99, with no in-app purchases.
Which has better reviews, Spectre Camera or STRATUM Slit Scan?
STRATUM Slit Scan is rated higher. Spectre Camera averages 4.3 out of 5 from 2.4K ratings, while STRATUM Slit Scan averages 5.0 from 2 ratings.
Do Spectre Camera or STRATUM Slit Scan have ads?
Neither Spectre Camera nor STRATUM Slit Scan shows ads.

Other comparisons