Value Study vs TangleApp
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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/
TangleApp
Train your mind, find calm, and boost creativity with guided challenges inspired by the Zentangle method. This app offers step-by-step instructions to enhance concentration and reduce stress, making it ideal for both beginners and artists seeking mindfulness.
- Mind training challenges
- Zentangle technique inspiration
- Step-by-step guides
- Concentration enhancement
- Stress reduction
- Creativity stimulation
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Tangle es una app diseñada para entrenar tu mente, encontrar calma y estimular tu creatividad. Ofrece retos inspirados en la técnica Zentangle, con guías paso a paso para potenciar tu concentración. Perfecta para principiantes y artistas, esta app te ayuda a reducir el estrés y conectar con el momento presente. EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is review sentiment: Value Study at 92% against TangleApp's 45%. Value Study also leads on rating (4.8 vs 3.0) and ratings volume (3.4K vs 4). TangleApp's advantage is iOS requirement (14.0 vs 16.6). On price, update cadence, ads and in-app purchases 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 and TangleApp sells 3 in-app purchases, starting at $6.00 per month. Whichever you choose, the download price is not the number that matters.
Value Study holds the better App Store score, 4.8 against 3.0. That said, the two scores are not equally well evidenced: Value Study has 3.4K ratings behind it against 4, 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 45% of TangleApp's.
Value Study ships an update every 2 weeks, TangleApp every 10 days. The most recent releases landed on October 29, 2026 and October 20, 2026 respectively.
| Parameter | Value Study | TangleApp |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (3.4K ratings) — better | 3.0 (4 ratings) |
| Positive reviews | 92.0% of reviews — better | 45.5% of reviews |
| Number of ratings | 3.4K — better | 4 |
| Update frequency | Every 2 weeks | Every 10 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Requires iOS | 16.6 | 14.0 — better |
| Further details — not scored | ||
| Size | 36 MB | 25 MB |
| Age rating | 4+ | 4+ |
| Developer | Diem Limited | Alicia Gutierrez Rey |
Customer experience
Value Study
TangleApp
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
TangleApp
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
- Generous boost$9.99
- Value Study Pro (Lifetime)$17.99
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- Value Study$17.99
- Amazing supporter$24.99
TangleApp
- Suscripción mensual$6.001 Month
- Suscripción trimestral$15.003 Months
- Suscripción anual$30.001 Year
Questions
Is Value Study free?
Is TangleApp free?
Which has better reviews, Value Study or TangleApp?
Do Value Study or TangleApp have ads?
Which is updated more often, Value Study or TangleApp?
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