# Sketch Master vs O2O

The clearest difference is in-app purchases: O2O at none against Sketch Master's 1. O2O also leads on ads (none vs shown) and update cadence (weekly vs every 7 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Sketch Master sells 1 one-off in-app purchase. O2O asks for nothing beyond the download.

Sketch Master ships an update every 7 months, O2O weekly. The most recent releases landed on October 29, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Sketch Master | O2O |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (2K ratings)](https://appshunter.io/ios/app/sketch-master-cartoon-filter/id547157012/reviews)** | — |
| Number of ratings | **2K** | — |
| Positive reviews | 87.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 7 months | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 78 MB | 41 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [立明 张](https://appshunter.io/developer/1048524741) | [BANANA SOFTWARE COMPANY LIMITED](https://appshunter.io/developer/1131554214) |

## What reviewers say

### Sketch Master

[App page](https://appshunter.io/ios/app/sketch-master-cartoon-filter/id547157012)

Transform your photos into unique sketch or cartoon avatars with over 60 artistic filters. Easily edit and share your creations, making ordinary pictures extraordinary.

**Highlights:** 60+ sketch and cartoon effects, Pencil sketch filters, Color pencil sketch filters, Comic book style filters, Multiple cropping options, Adjustable image quality, Image editing and sharing

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Upgrade To Pro | $1.99 | one-time |

**What reviewers like**

- ⭐ Excellent sketching capabilities
- 👍 Easy to use and navigate
- 💡 Versatile with many editing options
- 🎨 Produces high-quality sketches
- 🤩 Fun and creative app

**What reviewers complain about**

- 🚧 Frequent crashes and bugs
- 💸 Excessive ads and in-app purchases
- 🔍 Confusing UI and poor instructions
- 🤖 Inconsistent performance on newer devices

**Reported bugs**

- App freezes when saving or exporting images
- Certain filters and effects not working as expected
- Compatibility issues with latest iOS versions

**Requested features**

- More sketch and drawing tools
- Ability to edit background separately
- Improved stability and fewer crashes
- Reduced ads and less intrusive monetization


### O2O

[App page](https://appshunter.io/ios/app/o2o/id1533120772)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sketch Master free?

Sketch Master is free to download, with in-app purchases available.

### Is O2O free?

O2O is free to download, with no in-app purchases.

### Do Sketch Master or O2O have ads?

Sketch Master shows ads; O2O does not.

### Which is updated more often, Sketch Master or O2O?

Sketch Master ships an update every 7 months, and O2O weekly. Most recently, Sketch Master was updated on October 29, 2026 and O2O on October 11, 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.*