# ADP RUN vs Vonix Flex

The clearest difference is update cadence: ADP RUN at every 6 weeks against Vonix Flex's every 5 months. Vonix Flex's advantage is device support (3 vs 1) and iOS requirement (12.0 vs 16.4). On price, ads and in-app purchases there is nothing between them.

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

ADP RUN ships an update every 6 weeks, Vonix Flex every 5 months. The most recent releases landed on October 19, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | ADP RUN | Vonix Flex |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (51K ratings)](https://appshunter.io/ios/app/adp-run/id388928133/reviews)** | — |
| Number of ratings | **51K** | — |
| Positive reviews | 79.9% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 5 months |
| Monetization | Free | — |
| Size | 92 MB | 85 MB |
| Requires iOS | 16.4 | **12.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [ADP, Inc](https://appshunter.io/developer/363884520) | [Vonix, LLC](https://appshunter.io/developer/1560673435) |

## What reviewers say

### ADP RUN

[App page](https://appshunter.io/ios/app/adp-run/id388928133)

Manage your business's payroll and HR tasks from anywhere. This app offers an intuitive interface for starting payroll, adding employees, and ensuring tax compliance. Access important reports and insurance information on the go.

**Highlights:** Start payroll with a tap, AI-powered error detection, Add new hires and manage staff, Stay compliant with tax requirements, Run, download, and share reports, View insurance policy info

**In-app purchases:** none

**What reviewers like**

- 🚀 Easy to use
- 🚀 Convenient for on-the-go payroll
- 👍 Helpful customer support
- 🚀 Efficient payroll processing
- 👍 Seamless app experience

**What reviewers complain about**

- 🐛 Crashes and bugs
- 🔍 Lacking key features on mobile
- 🔍 Limited functionality compared to desktop
- 🔍 Difficult to manage multiple companies
- 🔍 Payroll editing issues

**Reported bugs**

- Crashes when trying to access certain features
- Compatibility issues with newer iOS devices
- Endless login loop when switching between companies
- Inability to access payroll functions on mobile
- Inconsistent performance across different devices

**Requested features**

- Ability to edit employee information on mobile
- Access to payroll reports and analytics on mobile
- Support for managing multiple companies on mobile
- Improved navigation and workflow for entering payroll
- Seamless integration between mobile and desktop experiences


### Vonix Flex

[App page](https://appshunter.io/ios/app/vonix-flex/id1560673433)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ADP RUN free?

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

### Is Vonix Flex free?

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

### Do ADP RUN or Vonix Flex have ads?

Neither ADP RUN nor Vonix Flex shows ads.

### Which is updated more often, ADP RUN or Vonix Flex?

ADP RUN ships an update every 6 weeks, and Vonix Flex every 5 months. Most recently, ADP RUN was updated on October 19, 2026 and Vonix Flex 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.*