Comparison

Value Study vs Color Harmony by Powsty

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

Head to head
About

Value Study

This tool helps artists improve their drawing and painting skills by simplifying reference images into distinct value ranges. It allows users to break down tones step-by-step, highlight areas of similar value, and focus on light, shadow, and form.

Highlights
  • Value breakdown of reference images
  • Highlighting areas of similar value
  • Adjustable number of value steps
  • Focus on light, shadow, and form
  • Enhances traditional art studies
  • Cross-platform compatibility
Features
Read full description

In art, value (or tone) refers to how light or dark a colour is. If you're learning to paint or draw, doing value studies is one of the best ways to improve. These small, loose sketches in greyscale help you understand where shadows fall and highlights appear—essential for capturing depth and form. Value Study is a simple, focused tool designed to help you see values more clearly in your reference images. Instead of just converting a photo to black and white, this app lets you break down tones step by step. Start with just black and white to map out the biggest shapes, then gradually add more values to refine your understanding. You can also highlight all areas of an image that share the same value, making it easier to see subtle shifts in tone. This is especially useful in complex references, like portraits, where different parts of the image might have the same level of shadow but look completely different in colour. Value Study isn’t here to replace traditional studies—it’s here to enhance them. Whether you're sketching, painting, or working digitally, this tool makes it easier to focus on the fundamentals of light, shadow, and form. Try it for free with all features enabled on sample images from Unsplash before deciding to unlock the full app with a low-cost yearly or lifetime purchase. All Value Study Pro upgrades count as lifetime purchase. Either option will unlock Value Study across iPhone, iPad and Mac. Annual: Auto-renews yearly. Lifetime: One-time payment, no fees. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Color Harmony by Powsty

Discover harmonious color combinations for your creative projects. Extract palettes from images or your camera, and explore various color modes and algorithms to find the perfect shades. Organize your favorite palettes for easy access.

Highlights
  • 3 palette creation methods
  • Multiple color modes (RGB, HSV, RAL, CMYK)
  • Various color harmony algorithms
  • Camera color matching
  • Favorites and collections
  • RAL color translation
Features
Read full description

Do you need to find the perfect combination of colors for your project? Maybe you have a photograph that you really like and want to convert to the palette of colors? Maybe you have your dream color chosen and want to know which colors are harmonic? Download this app and explore its capabilities! FEATURES: • 3 different ways to create palettes (harmonic, from image, and custom) • Variety of color modes (RGB, HSV, RAL, CMYK) • Variety of algorithms of color harmony • Matching colors in camera mode • Organizing palettes into favorites and collections • Translating colors to RAL format (the color matching system used in Europe) • Stunning design with a clean look and feel LANGUAGES: • English • Spanish • Polish • German • Italian • Portuguese • Turkish

Screenshots

Value Study4 screens
Color Harmony by Powsty4 screens

Verdict

The call

The clearest difference is price: Value Study at Free against Color Harmony by Powsty's $1.99. Value Study also leads on ratings volume (3.4K vs 12) and rating (4.8 vs 4.6). Color Harmony by Powsty's advantage is in-app purchases (none vs 7) and chart position (#114 vs unranked). On ads and device support 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

Value Study is free to download; Color Harmony by Powsty costs $1.99 up front. Value Study sells 7 in-app purchases, starting at $3.99 per year. Color Harmony by Powsty asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Value Study holds the better App Store score, 4.8 against 4.6. That said, the two scores are not equally well evidenced: Value Study has 3.4K ratings behind it against 12, so its average is the more settled of the two. Written reviews complicate that: 92% of Value Study's written reviews are positive against 100% of Color Harmony by Powsty's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Value Study ships an update every 2 weeks, Color Harmony by Powsty every 6 weeks. Both last shipped on October 30, 2026.

Scorecard9 real differences · 2 level
Value Study versus Color Harmony by Powsty: the parameters behind the verdict, then further details
ParameterValue StudyColor Harmony by Powsty
PriceFree — better$1.99
Rating4.8 (3.4K ratings) — better4.6 (12 ratings)
Positive reviews92.0% of reviews100.0% of reviews — better
Number of ratings3.4K — better12
Update frequencyEvery 2 weeks — betterEvery 6 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
Best chart rank—#114 — better
DevicesiPhone, iPad, MaciPhone, iPad, iPod
Requires iOS16.614.3 — better
Further details — not scored
Size36 MB25 MB
Age rating+44+
DeveloperDiem LimitedWojciech Walczyszyn

Customer experience

Value Study

All ratings3,359 ratings
Positive96.6%
Neutral1.3%
Negative2.1%
Written reviews200 reviews
Positive92.0%
Neutral1.5%
Negative6.5%

Color Harmony by Powsty

All ratings12 ratings
Positive91.7%
Neutral0.0%
Negative8.3%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Value Study

Reported bugs

2 issues
  • App crashes or fails to launch on some devices
  • Occasional issues with image processing

Requested features

4 requests
  • Add ability to adjust value midpoint
  • Include color study/color adjustment options
  • Provide side-by-side comparison of original and simplified images
  • Add customizable grid overlay

Color Harmony by Powsty

Not enough reviews yet to summarise bugs or requests.

In-app purchases

7 purchases

Value Study

Subscriptions2
  • Value Study Pro$3.991 Year
  • Value Study Pro (yearly)$6.991 Year
One-time5
  • Appreciation$2.99
  • Generous boost$9.99
  • Value Study Pro (Lifetime)$17.99
Show 2 more
  • Value Study$17.99
  • Amazing supporter$24.99
None

Color Harmony by Powsty

No in-app purchases

Questions

Is Value Study free?
Value Study is free to download, with in-app purchases available.
Is Color Harmony by Powsty free?
Color Harmony by Powsty costs $1.99, with no in-app purchases.
Which has better reviews, Value Study or Color Harmony by Powsty?
Value Study is rated higher. Value Study averages 4.8 out of 5 from 3.4K ratings, while Color Harmony by Powsty averages 4.6 from 12 ratings.
Do Value Study or Color Harmony by Powsty have ads?
Neither Value Study nor Color Harmony by Powsty shows ads.
Which is updated more often, Value Study or Color Harmony by Powsty?
Value Study ships an update every 2 weeks, and Color Harmony by Powsty every 6 weeks. Most recently, Value Study was updated on October 30, 2026 and Color Harmony by Powsty on October 30, 2026.

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