Mono Lab vs Masters Eye
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Mono Lab
Explore creative image manipulation with a focus on black and white effects. This app offers a wide range of tools for distortion, texture, and structural changes, allowing for unique artistic experimentation.
- 129 black and white filters
- Sensor-based filters controlled by device movement
- 12 dimensional surfaces and 13 lenses for 3D distortion
- Interactive filters responding to touch
- Raster and vector output options
- Save directly to Files
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Mono Lab is designed for exploring the unexpected. Experiment with images in black and white. From subtle relief to structural collapse, topology drift, mesh warps, fracture effects, misregistration, and controlled instability, every tool is built for focused experimentation. Responsive. Direct. Tactile. // Interactive Filters (X) Distortion that responds to you. Shift the image through movement and contact. Tilt to bend structure. Rotate to redirect tension. Touch to anchor, drag to stretch, hold to resist. Each gesture leaves a trace. Each motion reshapes the result. // 3D Surface Mode A dimensional approach to distortion. Map images across 12 surfaces and interpret them through 13 lenses. Adjust depth. Refine spatial tension. Each surface behaves differently. Each lens reshapes the outcome. Monochromatic. Structure, tone, dimension, possibility. What You Can Do • 158 filters for black and white distortion • Touch and motion control transformations • 12 surfaces. 13 lenses • Press, drag, and hold to reshape the image like a surface • Refine light, contrast, and structure • Warp topology and form • Collapse, fracture, and distort • Create raster and vector outputs • Build layered misregistrations • Adjust pressure, grain, and tone • Stack transformations • Save your favorite filters to the Index • Save directly to Files Mono Lab is for designers, artists, photographers, illustrators, and visual experimenters working in black and white.
Masters Eye
This reference study app helps artists improve their drawing and painting by simplifying visual information. It offers various study modes to analyze values, proportions, and composition, aiding in better artistic decision-making.
- Purpose-built Study Modes (Values, Squint, Pencil, Notan, Proportions)
- Import reference photos
- Fast mode switching for drills
- Split and compare workflow
- Save results to Photos library
- On-device image processing
- No accounts or ad tracking
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Masters Eye is a focused reference study app for artists who want to draw and paint with stronger structure, clearer values, and better decision making. One-time purchase. No subscription. Import a reference photo and switch through purpose-built Study Modes to simplify what you see: • Values: Group complex references into readable value masses • Squint: Reduce visual noise to see big relationships faster • Pencil: Translate references into practical tonal steps • Notan: Test light/shadow design and composition clarity • Proportions: Check alignment, spacing, and shape relationships • Original: Instantly compare against the untouched reference Built for deliberate practice, not distraction: • Fast mode switching for targeted observation drills • Split and compare workflow for quick visual checks • Save results to your Photos library when you choose Privacy-first by design: • Image processing happens on-device • No accounts required • No ad tracking Whether you’re studying portraits, still life, or landscapes, Master’s Eye helps you simplify references and make better artistic decisions with confidence.
Screenshots
Verdict
The clearest difference is in-app purchases: Masters Eye at none against Mono Lab's 4. Masters Eye also leads on update cadence (every 2 days vs every 5 days) and price ($3.99 vs $4.99). Mono Lab's advantage is ratings volume (22 vs 1) and chart position (#5 vs unranked). On rating, ads and monetization model 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
Mono Lab costs $4.99 and Masters Eye $3.99 up front. Mono Lab sells 4 one-off in-app purchases. Masters Eye asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for Mono Lab against 5.0 for Masters Eye. That said, the two scores are not equally well evidenced: Mono Lab has 22 ratings behind it against 1, so its average is the more settled of the two.
Mono Lab ships an update every 5 days, Masters Eye every 2 days. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.
| Parameter | Mono Lab | Masters Eye |
|---|---|---|
| Price | $4.99 | $3.99 — better |
| Rating | 5.0 (22 ratings) | 5.0 (1 ratings) |
| Positive reviews | 94.4% of reviews | — |
| Number of ratings | 22 — better | 1 |
| Update frequency | Every 5 days | Every 2 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Paid | Paid |
| Best chart rank | #5 — better | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.1 — better | 17.0 |
| Further details — not scored | ||
| Size | 57 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Inner Circle | Jonathan Brodish |
Customer experience
Mono Lab
Masters Eye
In-app purchases
Mono Lab
- Pheno Set$1.99
- Print Set$1.99
- ASCII Set$1.99
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- Dither Set$1.99
Masters Eye
No in-app purchases









