# CLARUS vs DUO Payroll

The clearest difference is update cadence: CLARUS at every 3 weeks against DUO Payroll's every 31 months. 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.

CLARUS ships an update every 3 weeks, DUO Payroll every 31 months. The most recent releases landed on December 23, 2025 and September 10, 2026 respectively.

## The numbers

| Metric | CLARUS | DUO Payroll |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 31 months |
| Size | 36 MB | 33 MB |
| Requires iOS | 15.6 | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [R V CONNEX COMPANY LIMITED](https://appshunter.io/developer/1645018732) | [DUO Accounting and Services Company Limited](https://appshunter.io/developer/1651895806) |

## What reviewers say

### CLARUS

[App page](https://appshunter.io/ios/app/clarus/id1645223169)

**In-app purchases:** none


### DUO Payroll

[App page](https://appshunter.io/ios/app/duo-payroll/id6444049470)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CLARUS free?

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

### Is DUO Payroll free?

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

### Do CLARUS or DUO Payroll have ads?

Neither CLARUS nor DUO Payroll shows ads.

### Which is updated more often, CLARUS or DUO Payroll?

CLARUS ships an update every 3 weeks, and DUO Payroll every 31 months. Most recently, CLARUS was updated on December 23, 2025 and DUO Payroll on September 10, 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.*