# Mono Lab vs Masters Eye

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 (#4 vs unranked). On rating, ads and monetization model there is nothing between them.

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.

## The numbers

| Metric | Mono Lab | Masters Eye |
| --- | --- | --- |
| Price | $4.99 | **$3.99** |
| Rating | [5.0 (22 ratings)](https://appshunter.io/ios/app/mono-lab/id6759029184/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/masters-eye/id6761856842/reviews) |
| Number of ratings | **22** | 1 |
| Positive reviews | 94.4% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 days | **Every 2 days** |
| Monetization | Paid | Paid |
| Best chart rank | **#4** | — |
| Size | 57 MB | 2 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Inner Circle](https://appshunter.io/developer/367838600) | [Jonathan Brodish](https://appshunter.io/developer/1891783108) |

## What reviewers say

### Mono Lab

[App page](https://appshunter.io/ios/app/mono-lab/id6759029184)

**Currently charting:** #4 Top Paid · Graphics & Design, #188 Top Paid (US App Store)

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.

**Highlights:** 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

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pheno Set | $1.99 | one-time |
| Print Set | $1.99 | one-time |
| ASCII Set | $1.99 | one-time |
| Dither Set | $1.99 | one-time |


### Masters Eye

[App page](https://appshunter.io/ios/app/masters-eye/id6761856842)

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.

**Highlights:** 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

**In-app purchases:** none


## Frequently asked questions

### Is Mono Lab free?

Mono Lab costs $4.99, and also offers in-app purchases.

### Is Masters Eye free?

Masters Eye costs $3.99, with no in-app purchases.

### Which has better reviews, Mono Lab or Masters Eye?

Mono Lab and Masters Eye are both rated 5.0 out of 5 on the App Store, from 22 and 1 ratings respectively.

### Do Mono Lab or Masters Eye have ads?

Neither Mono Lab nor Masters Eye shows ads.

### Which is updated more often, Mono Lab or Masters Eye?

Mono Lab ships an update every 5 days, and Masters Eye every 2 days. Most recently, Mono Lab was updated on October 28, 2026 and Masters Eye on October 25, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*