# Scan2Sides vs Gratuity Lab

The clearest difference is in-app purchases: Gratuity Lab at none against Scan2Sides's 1. Gratuity Lab also leads on update cadence (every 5 days vs every 5 months). Scan2Sides's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Scan2Sides sells 1 one-off in-app purchase. Gratuity Lab asks for nothing beyond the download.

Scan2Sides ships an update every 5 months, Gratuity Lab every 5 days. The most recent releases landed on October 6, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Scan2Sides | Gratuity Lab |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 5 months | **Every 5 days** |
| Size | 3 MB | 10 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [永杰 杨](https://appshunter.io/developer/1799458676) | [Wenbin lei](https://appshunter.io/developer/1787331500) |

## What reviewers say

### Scan2Sides

[App page](https://appshunter.io/ios/app/scan2sides/id6743626230)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro | $0.99 | one-time |


### Gratuity Lab

[App page](https://appshunter.io/ios/app/gratuity-lab-tip-calculator/id6797330328)

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

**In-app purchases:** none


## Frequently asked questions

### Is Scan2Sides free?

Scan2Sides is free to download, with in-app purchases available.

### Is Gratuity Lab free?

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

### Do Scan2Sides or Gratuity Lab have ads?

Gratuity Lab shows ads; Scan2Sides does not.

### Which is updated more often, Scan2Sides or Gratuity Lab?

Scan2Sides ships an update every 5 months, and Gratuity Lab every 5 days. Most recently, Scan2Sides was updated on October 6, 2026 and Gratuity Lab 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.*