# CHMOD Lab vs CalShift

The clearest difference is in-app purchases: CHMOD Lab at none against CalShift's 1. CalShift's advantage is iOS requirement (13.0 vs 17.6). On price, ads and device support there is nothing between them.

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

## The numbers

| Metric | CHMOD Lab | CalShift |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 3 months |
| Size | 2 MB | 30 MB |
| Requires iOS | 17.6 | **13.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Guy Miller](https://appshunter.io/developer/1865478036) | [Zhihao Yang](https://appshunter.io/developer/1466209376) |

## What reviewers say

### CHMOD Lab

[App page](https://appshunter.io/ios/app/chmod-lab-linux-permissions/id6757230787)

**Features:** macOS Compatibility

**In-app purchases:** none


### CalShift

[App page](https://appshunter.io/ios/app/calshift-shift-work-calendar/id6758676304)

**Features:** macOS Compatibility

**In-app purchases (1)**

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


## Frequently asked questions

### Is CHMOD Lab free?

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

### Is CalShift free?

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

### Do CHMOD Lab or CalShift have ads?

Neither CHMOD Lab nor CalShift shows ads.

---

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