Comparison

Value Study vs Art Style

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 app helps artists improve their skills by analyzing light and shadow in reference images. It allows users to break down tones step-by-step, from simple black and white to more complex value ranges, aiding in the understanding of depth and form. It's a tool to enhance traditional art studies.

Highlights
  • Step-by-step tone breakdown
  • Highlighting areas of same value
  • Focus on light, shadow, and form
  • Greyscale value studies
  • Works with reference images
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

Art Style

Transform your photos into famous painting styles using AI. Select an image, choose a painting, and let the AI convert your picture. Save or share your artistic creations easily.

Highlights
  • AI image processing
  • Apply famous painting styles
  • Select images from album or camera
  • Save and share creations
  • Easy to use interface
Features
Read full description

It is an application that can easily process the image like that famous painting. AI processing converts the image to the style of the selected painting. ■ How to use -Select an image from an album or by taking an image. ・ Select your favorite painting. -The image is converted. ・ After that, you can save the image from "Save image" or share it to SNS etc. from the share button.

Screenshots

Value Study4 screens
Art Style1 screens

Verdict

The call

The clearest difference is review sentiment: Value Study at 92% against Art Style's 0%. Value Study also leads on rating (4.8 vs 4.3) and ads (none vs shown). Art Style's advantage is in-app purchases (none vs 7) and update cadence (every 4 days vs fortnightly). On price 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

Both are free to download. Value Study sells 7 in-app purchases, starting at $3.99 per year. Art Style asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Value Study holds the better App Store score, 4.8 against 4.3. That said, the two scores are not equally well evidenced: Value Study has 3.3K ratings behind it against 20, so its average is the more settled of the two. Written reviews point the same way: 92% of Value Study's written reviews are positive against 0% of Art Style's.

UpkeepUpdate frequency

Value Study ships an update fortnightly, Art Style every 4 days. The most recent releases landed on October 20, 2026 and October 5, 2026 respectively.

Scorecard8 real differences · 2 level
Value Study versus Art Style: the parameters behind the verdict, then further details
ParameterValue StudyArt Style
PriceFreeFree
Rating4.8 (3.3K ratings) — better4.3 (20 ratings)
Positive reviews92.0% of reviews — better0.0% of reviews
Number of ratings3.3K — better20
Update frequencyFortnightlyEvery 4 days — better
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesAd-supported — better
DevicesiPhone, iPad, MaciPhone, iPad, iPod
Requires iOS16.69.0 — better
Further details — not scored
Size35 MB75 MB
Age rating4+4+
DeveloperDiem Limitedkazuhiro aonuma

Customer experience

Value Study

All ratings3,333 ratings
Positive96.7%
Neutral1.3%
Negative2.0%
Written reviews200 reviews
Positive92.0%
Neutral1.5%
Negative6.5%

Art Style

All ratings20 ratings
Positive85.0%
Neutral0.0%
Negative15.0%
Written reviews2 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

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

Art Style

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
  • Value Study Pro (Lifetime)$9.99
  • Generous boost$9.99
Show 2 more
  • Value Study$17.99
  • Amazing supporter$24.99
None

Art Style

No in-app purchases

Questions

Is Value Study free?
Value Study is free to download, with in-app purchases available.
Is Art Style free?
Art Style is free to download, with no in-app purchases.
Which has better reviews, Value Study or Art Style?
Value Study is rated higher. Value Study averages 4.8 out of 5 from 3.3K ratings, while Art Style averages 4.3 from 20 ratings.
Do Value Study or Art Style have ads?
Art Style shows ads; Value Study does not.
Which is updated more often, Value Study or Art Style?
Value Study ships an update fortnightly, and Art Style every 4 days. Most recently, Value Study was updated on October 20, 2026 and Art Style on October 5, 2026.

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