# Nomi Payroll vs Atom (Site Engineer)

The clearest difference is update cadence: Atom (Site Engineer) at fortnightly against Nomi Payroll's every 4 months. Nomi Payroll's advantage is iOS requirement (12.0 vs 15.0). 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.

Nomi Payroll ships an update every 4 months, Atom (Site Engineer) fortnightly. Both last shipped on September 10, 2026.

## The numbers

| Metric | Nomi Payroll | Atom (Site Engineer) |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Fortnightly** |
| Size | 20 MB | 51 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [nomismasolution](https://appshunter.io/developer/1106412087) | [Saphire Computers Limited](https://appshunter.io/developer/1164805098) |

## What reviewers say

### Nomi Payroll

[App page](https://appshunter.io/ios/app/nomi-payroll/id1533407504)

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

**In-app purchases:** none


### Atom (Site Engineer)

[App page](https://appshunter.io/ios/app/atom-site-engineer/id6449485838)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Nomi Payroll free?

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

### Is Atom (Site Engineer) free?

Atom (Site Engineer) is free to download, with no in-app purchases.

### Do Nomi Payroll or Atom (Site Engineer) have ads?

Neither Nomi Payroll nor Atom (Site Engineer) shows ads.

### Which is updated more often, Nomi Payroll or Atom (Site Engineer)?

Nomi Payroll ships an update every 4 months, and Atom (Site Engineer) fortnightly. Most recently, Nomi Payroll was updated on September 10, 2026 and Atom (Site Engineer) 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.*