# Study Timer vs Smudge

The clearest difference is ads: Smudge at none against Study Timer's shown. Smudge also leads on update cadence (every 2 days vs every 4 months). Study Timer's advantage is iOS requirement (15.0 vs 26.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Study Timer sells 2 in-app purchases, starting at $4.99 per month and Smudge sells 2 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

Study Timer ships an update every 4 months, Smudge every 2 days. The most recent releases landed on November 5, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | Study Timer | Smudge |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Every 2 days** |
| Monetization | — | Freemium |
| Size | 75 MB | 68 MB |
| Requires iOS | **15.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [kota tada](https://appshunter.io/developer/1658942612) | [bluedotsoftware](https://appshunter.io/developer/1861372957) |

## What reviewers say

### Study Timer

[App page](https://appshunter.io/ios/app/study-timer-studyflow/id6755078518)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ad-free for 1 month | $4.99 | per month |
| Ad-free for 1 year | $29.99 | per year |


### Smudge

[App page](https://appshunter.io/ios/app/smudge-imperfect-sketchbook/id6756835733)

This app offers a clean, distraction-free canvas for drawing, sketching, and doodling on your iPhone and iPad. Organize your work into multiple sketchbooks, utilize realistic pencil and charcoal shading, and refine details with a precision eraser. It supports finger drawing and Apple Pencil, with iCloud sync for cross-device access.

**Highlights:** Multiple sketchbooks for organization, Finger and Apple Pencil support, Realistic pencil and charcoal shading, Precision eraser for fine details, Distraction-free canvas, iCloud sync across devices

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Smudge Pro - Monthly | $5.99 | per month |
| Smudge Pro - Yearly | $49.99 | per year |


## Frequently asked questions

### Is Study Timer free?

Study Timer is free to download, with in-app purchases available.

### Is Smudge free?

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

### Do Study Timer or Smudge have ads?

Study Timer shows ads; Smudge does not.

### Which is updated more often, Study Timer or Smudge?

Study Timer ships an update every 4 months, and Smudge every 2 days. Most recently, Study Timer was updated on November 5, 2026 and Smudge on November 9, 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.*