Gridder vs Color Study
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Gridder
Easily add customizable grid lines to your photos. Perfect for artists and illustrators, this tool lets you import images, adjust grid settings like line thickness and color, and export your work for sketching or reference.
- Import and crop images
- Customizable grid lines
- Adjust rows and columns
- Control line thickness and opacity
- Change grid line color
- Export images with grid
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Gridder is a customizable image grid overlay tool — designed for artists and illustrators who sketch from photo references or plan paintings. Import any image, crop it to your desired format, and apply a customizable grid. You can adjust the number of rows and columns, grid line thickness, opacity, and color to suit your style. When you're ready, export the final image with the grid applied for printing, sketching, or saving to your reference library.
Color Study
This app helps artists simplify images into essential shapes and colors for study. It provides tools for accurate color matching, paint mixing guidance, and detailed analysis of value, saturation, and color codes. Advanced features for deeper analysis and paint mixing are available via subscription.
- Image simplification to shapes and colors
- Accurate color picker with pixel averaging
- Paint mixing guidance
- Value, saturation, and color code inspection
- Interactive analysis maps
- Customizable grid overlay
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Color Study is a tool for artists to simplify images, study color and value, and accurately match colors through paint mixing. Load any photo and reduce it to clear shapes and essential color information. Color Study generates a clear color map of your reference and provides guidance for mixing paints to match the colors you see, giving you a practical guide you can use at the easel or in study. Focus on the fundamentals that matter in drawing and painting. Made for artists Core tools: • Accurate color picker with magnification and pixel averaging options • Place and customize color markers directly on your reference • Inspect value, saturation, and color codes (RGB, HSV, HSL, CMYK, LAB) • Automatically extract key colors and accents in an image, and mark their locations • Compare colors to assess value, relative temperature, saturation, and perceptual difference • Customizable grid overlay for precise alignment Advanced tools: • Interactive value maps, shape simplification, temperature maps and notan controls • Paint-mixing guidance designed for opaque paints, with real-time feedback from photographed mixes • Export analysis views and color maps as images for reference or study • Advanced grid controls for precision alignment and subdivision • Generate simplified line drawings and contour maps to clarify structure, edges, and major shapes • Organize your work into projects with images, paint palettes, and artwork details • iCloud sync keeps your projects and palettes in sync across all your Apple devices Advanced tools available with subscription. Train your artistic eye Color Study is not a design tool or palette generator. It is a learning tool for painters, illustrators, and art students who want to analyze what they see and make better decisions in their artwork. Study master paintings, analyze your own photos, and deepen your understanding of value structure, color harmony, and visual design. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: Gridder at none against Color Study's 7. Gridder also leads on iOS requirement (12.0 vs 16.6). Color Study's advantage is ratings volume (512 vs 1) and chart position (#139 vs unranked). On price, rating, 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
Both are free to download. Color Study sells 7 in-app purchases, starting at $2.99 per month. Gridder asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for Gridder against 4.9 for Color Study. That said, the two scores are not equally well evidenced: Color Study has 512 ratings behind it against 1, so its average is the more settled of the two.
| Parameter | Gridder | Color Study |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 4.9 (512 ratings) |
| Positive reviews | — | 87.9% of reviews |
| Number of ratings | 1 | 512 — better |
| Update frequency | — | Every 11 days |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Best chart rank | — | #139 — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Requires iOS | 12.0 — better | 16.6 |
| Further details — not scored | ||
| Size | 34 MB | 195 MB |
| Age rating | 4+ | 4+ |
| Developer | Qing Yan | BrushLabs LLC |
Customer experience
Gridder
Color Study
In-app purchases
Gridder
No in-app purchases
Color Study
- Color Study Pro monthly$2.991 Month
- Color Study Pro monthly$4.991 Month
- Color Study Pro yearly7 Days trial$19.991 Year
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- Color Study Pro Yearly7 Days trial$24.991 Year
- Color Study tip$1.99
- Color Study tip$19.99
- Color Study tip$29.99









