Comparison

Dehancer Color Test vs Lumev

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

Head to head
About

Dehancer Color Test

This experimental tool assesses your ability to perceive colors under various display conditions. It provides two key metrics: the number of colors you can distinguish and how effectively your current perception matches your theoretical potential. Regular use may help improve your visual perception of color nuances.

Highlights
  • Color perception assessment
  • Measures perceived colors
  • Evaluates perceptual effectiveness
  • Aids in improving visual vision
  • Based on expert color study
  • Anonymized data collection
Features
Read full description

Dehancer Color Test is based on the color perception study by co-founders of Dehancer Pavel Kosenko, Nailya Safarova & Denis Svinarchuk, experts in Image Processing. This experimental tool helps you determine how many colours you perceive under different colour target display conditions. The test results include two values: 1. The number of colors you can perceive It is an index of color perception involving short-term memory. In simpler terms, it represents the ability of aesthetic perception under momentary examination. The result depends on the visual experience and your demand for colour nuance. You can take this test regularly to improve your perceptual vision. 2. The current effectiveness of your perception relative to your theoretical potential With some reservations, the potential represents the limit of your physiological ability, as measured at the level of the sensory visual system. Sensory vision is also trainable, but to a lesser extent. Perception depends on lighting conditions, physical and emotional state, and effort. Also, the results may vary over time and as your visual experience improves. The testing method is part of a live experiment, so we admit measurement inaccuracies. The statistics we collect do not contain personal data and are stored in anonymized form. This app is not intended for medical diagnosis. Any result is normal and reflects your personal demand for nuanced color perception. Dehancer’s mission is to preserve the aesthetic heritage by means of digital tools for color correction and lifelike emulation of analog processes and effects. YOUR PRIVACY IS IMPORTANT TO US Please read the Terms of Use as well as the Privacy Policy carefully. All data is handled under the Terms of Use and Privacy Policy of Dehancer. More details can be found here: https://www.dehancer.com/terms_colortest https://www.dehancer.com/privacy_colortest

About

Lumev

Features
Read full description

Lumev is a focused smart light meter for film photography. It turns the iPhone camera into a clear path from reading a scene to setting the shutter speed and aperture on a real camera. It is approachable for a first roll of film and precise enough for an experienced photographer. MEASURE WHAT MATTERS Begin with a full-scene reading. When the light is complex, open the live spot view, use digital zoom, and measure a face, subject, shadow, highlight, or any other important area. Every spot keeps its own reference image. Adjust the intended brightness for each reading, make one point primary, or give several points different weights. Lumev then shows the range of the scene instead of hiding it inside a single unexplained average. EXPOSURE PAIRS YOUR GEAR CAN ACTUALLY USE Create reusable kits with your camera, lens, film, working EI, and optional filter. Lumev respects the shutter speeds available on the camera, the aperture range and step of the lens, the selected focal length, and the light loss of a filter. It presents several useful shutter-and-aperture combinations at once, including a balanced choice, more depth of field, and a faster shutter. A clearly labeled chart and full table are there whenever you want to inspect every option. UNDERSTAND EVERY RECOMMENDATION Raw EV, your creative intent, filter compensation, and learned correction remain separate and visible. The β€œWhy this exposure?” view explains how the final value was formed, so beginners can learn and experienced photographers can stay in control. LEARN FROM THE DEVELOPED RESULT Save each metering session with its scene image, individual spot frames, recommendation, and the settings actually used on the camera. After development, compare the result with the saved reference and rate the exposure. Lumev learns conservatively from repeated, consistent feedback for your equipment and preferences. One unusual frame will not suddenly change the model, and past readings are never rewritten. BUILT FOR A QUIET SHOOTING WORKFLOW β€’ Fast live camera preview, with a monochrome view for black-and-white film β€’ Full-scene, center-weighted, and spot metering controls β€’ Profiles for cameras, prime and zoom lenses, films, and filters β€’ Searchable history with reference frames and actual exposure settings β€’ Handheld warnings and recommendations based on the selected focal length β€’ Works offline; history and learning data stay on your device β€’ No ads or promotional interruptions Lumev keeps the interface focused on the photograph: measure the light, understand the choices, set the camera, and keep shooting.

Screenshots

Dehancer Color Test4 screens
Lumev4 screens

Verdict

The call

Dehancer Color Test and Lumev are too close to call on the numbers: across 6 compared parameters β€” price, update cadence, ads and in-app purchases among them β€” neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Dehancer Color Test ships an update every 2 months, Lumev monthly. The most recent releases landed on October 30, 2026 and October 24, 2026 respectively.

ScorecardNo meaningful differences
Dehancer Color Test versus Lumev: the parameters behind the verdict, then further details
ParameterDehancer Color TestLumev
PriceFreeFree
Positive reviews100.0% of reviewsβ€”
Update frequencyEvery 2 monthsMonthly β€” better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeβ€”
DevicesiPhoneiPhone, iPad β€” better
Requires iOS16.6 β€” better17.0
Further details β€” not scored
Size46 MB7 MB
Age rating4+4+
DeveloperDehancer L.L.C-FZILTERRA

In-app purchases

None

Dehancer Color Test

No in-app purchases

None

Lumev

No in-app purchases

Questions

Is Dehancer Color Test free?
Dehancer Color Test is free to download, with no in-app purchases.
Is Lumev free?
Lumev is free to download, with no in-app purchases.
Do Dehancer Color Test or Lumev have ads?
Neither Dehancer Color Test nor Lumev shows ads.
Which is updated more often, Dehancer Color Test or Lumev?
Dehancer Color Test ships an update every 2 months, and Lumev monthly. Most recently, Dehancer Color Test was updated on October 30, 2026 and Lumev on October 24, 2026.

Other comparisons