# Paychex Flex vs OnShift Mobile

The clearest difference is rating: Paychex Flex at 4.8 against OnShift Mobile's 1.4. Paychex Flex also leads on ratings volume (576K vs 258) and update cadence (monthly vs every 2 months). OnShift Mobile's advantage is iOS requirement (12.2 vs 17.4). On price, review sentiment, 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.

Paychex Flex holds the better App Store score, 4.8 against 1.4. That said, the two scores are not equally well evidenced: Paychex Flex has 576K ratings behind it against 258, so its average is the more settled of the two. Written reviews point the same way: 12% of Paychex Flex's written reviews are positive against 5% of OnShift Mobile's.

Paychex Flex ships an update monthly, OnShift Mobile every 2 months. The most recent releases landed on October 16, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Paychex Flex | OnShift Mobile |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (576K ratings)](https://appshunter.io/ios/app/paychex-flex/id527740152/reviews)** | [1.4 (258 ratings)](https://appshunter.io/ios/app/onshift-mobile/id600755207/reviews) |
| Number of ratings | **576K** | 258 |
| Positive reviews | **12.2% of reviews** | 4.6% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | Free | Free |
| Best chart rank | **#36** | — |
| Size | 330 MB | 59 MB |
| Requires iOS | 17.4 | **12.2** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 12+ | 17+ |
| Developer | [Paychex, Inc](https://appshunter.io/developer/476461118) | [OnShift, Inc.](https://appshunter.io/developer/469592902) |

## What reviewers say

### Paychex Flex

[App page](https://appshunter.io/ios/app/paychex-flex/id527740152)

**Currently charting:** #36 Top Free · Business (US App Store)

This app connects employers and employees to essential payroll and benefits functions. Employers can submit payroll, access reports, and view employee data. Employees can view pay stubs, manage retirement contributions, and access benefit details.

**Highlights:** Submit payroll on the go, Access payroll reports, View employee pay stubs and tax documents, Manage retirement contributions and investments, Access health and benefits information, Touch ID and Face ID authentication

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- ⭐ Convenient access to payroll information
- 🚀 Easy to use and navigate
- 💻 Helpful for both employers and employees

**What reviewers complain about**

- 🐢 Slow and unresponsive app performance
- 🐛 Frequent crashes and glitches
- 🔒 Security issues with account access
- 💸 Concerns about privacy and data sharing

**Reported bugs**

- Login screen freezes or fails to load
- Time tracking inaccuracies and missed punches
- Inconsistent app behavior across devices

**Requested features**

- Ability to edit time punches directly in the app
- More detailed payroll information and reporting
- Improved notification system for payroll updates


### OnShift Mobile

[App page](https://appshunter.io/ios/app/onshift-mobile/id600755207)

Manage your work schedule, communicate with colleagues, and handle shift requests on the go. This app allows employees to view their schedule, respond to messages, and request time off. Schedulers can manage call-offs and communicate with staff efficiently.

**Highlights:** View schedule anytime, anywhere, Receive and reply to messages, Manage open shift notifications, Request shifts, fill-ins, and time off, Set communication preferences, Manage call-offs, Contact staff via Employee Directory

**Features:** Apple Wallet

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 💡 Convenient for scheduling

**What reviewers complain about**

- 🐛 Frequent crashes and glitches
- 🔍 Unreliable connectivity
- ⏱️ Slow performance
- 🔒 Login and password issues
- 💸 Wallet/pay issues

**Reported bugs**

- Constant log-outs and login issues
- Scheduling information not always accurate
- Wallet/pay feature frequently not working
- App freezes and crashes often

**Requested features**

- Improve stability and reliability
- Add fingerprint/biometric login
- Enhance scheduling and shift management features
- Integrate with external calendars
- Improve wallet/pay functionality


## Frequently asked questions

### Is Paychex Flex free?

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

### Is OnShift Mobile free?

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

### Which has better reviews, Paychex Flex or OnShift Mobile?

Paychex Flex is rated higher. Paychex Flex averages 4.8 out of 5 from 576K ratings, while OnShift Mobile averages 1.4 from 258 ratings.

### Do Paychex Flex or OnShift Mobile have ads?

Neither Paychex Flex nor OnShift Mobile shows ads.

### Which is updated more often, Paychex Flex or OnShift Mobile?

Paychex Flex ships an update monthly, and OnShift Mobile every 2 months. Most recently, Paychex Flex was updated on October 16, 2026 and OnShift Mobile on October 12, 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.*