Value Study vs Art Style
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Step-by-step tone breakdown
- Highlighting areas of same value
- Focus on light, shadow, and form
- Greyscale value studies
- Works with reference images
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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/
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.
- AI image processing
- Apply famous painting styles
- Select images from album or camera
- Save and share creations
- Easy to use interface
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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
Verdict
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
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.
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.
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.
| Parameter | Value Study | Art Style |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (3.3K ratings) — better | 4.3 (20 ratings) |
| Positive reviews | 92.0% of reviews — better | 0.0% of reviews |
| Number of ratings | 3.3K — better | 20 |
| Update frequency | Fortnightly | Every 4 days — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Ad-supported — better |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Requires iOS | 16.6 | 9.0 — better |
| Further details — not scored | ||
| Size | 35 MB | 75 MB |
| Age rating | 4+ | 4+ |
| Developer | Diem Limited | kazuhiro aonuma |
Customer experience
Value Study
Art Style
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
Value Study
- Value Study Pro$3.991 Year
- Value Study Pro (yearly)$6.991 Year
- Appreciation$2.99
- Value Study Pro (Lifetime)$9.99
- Generous boost$9.99
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- Value Study$17.99
- Amazing supporter$24.99
Art Style
No in-app purchases









