# Smart Sludge vs Smart Time Work

The clearest difference is update cadence: Smart Time Work at every 3 days against Smart Sludge's weekly. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Smart Sludge ships an update weekly, Smart Time Work every 3 days. Both last shipped on October 7, 2026.

## The numbers

| Metric | Smart Sludge | Smart Time Work |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Weekly | **Every 3 days** |
| Size | 54 MB | 48 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Smart Sensor Design - Empresa Paranaense de Sensores LTDA](https://appshunter.io/developer/1737767839) | [Soul Divine Steps LTDA](https://appshunter.io/developer/1852867213) |

## What reviewers say

### Smart Sludge

[App page](https://appshunter.io/ios/app/smart-sludge/id6752901389)

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

**In-app purchases:** none


### Smart Time Work

[App page](https://appshunter.io/ios/app/smart-time-work/id6760560852)

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

**In-app purchases:** none


## Frequently asked questions

### Is Smart Sludge free?

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

### Is Smart Time Work free?

Smart Time Work is free to download, with no in-app purchases.

### Do Smart Sludge or Smart Time Work have ads?

Neither Smart Sludge nor Smart Time Work shows ads.

### Which is updated more often, Smart Sludge or Smart Time Work?

Smart Sludge ships an update weekly, and Smart Time Work every 3 days. Most recently, Smart Sludge was updated on October 7, 2026 and Smart Time Work on October 7, 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.*