# POS S Pro vs ShiftZen

The clearest difference is price: ShiftZen at Free against POS S Pro's $23.99. ShiftZen also leads on ratings volume (18 vs 1). POS S Pro's advantage is rating (5.0 vs 3.9) and ads (none vs shown). On in-app purchases and device support there is nothing between them.

ShiftZen is free to download; POS S Pro costs $23.99 up front. POS S Pro sells 4 one-off in-app purchases and ShiftZen sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

POS S Pro holds the better App Store score, 5.0 against 3.9. That said, the two scores are not equally well evidenced: ShiftZen has 18 ratings behind it against 1, so its average is the more settled of the two.

POS S Pro ships an update every 4 weeks, ShiftZen every 12 months. The most recent releases landed on July 7, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | POS S Pro | ShiftZen |
| --- | --- | --- |
| Price | $23.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/pos-s-pro/id1440707714/reviews)** | [3.9 (18 ratings)](https://appshunter.io/ios/app/shiftzen-shift-work-calendar/id1511199418/reviews) |
| Number of ratings | 1 | **18** |
| Positive reviews | — | 59.4% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 4 weeks** | Every 12 months |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 11 MB | 36 MB |
| Requires iOS | **15.6** | 18.0 |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [CenHo Co., Ltd.](https://appshunter.io/developer/598513190) | [Bohee Sim](https://appshunter.io/developer/1137032844) |

## What reviewers say

### POS S Pro

[App page](https://appshunter.io/ios/app/pos-s-pro/id1440707714)

This app provides a point-of-sale system for various businesses, allowing easy recording of sales transactions, product management, and reporting. It supports cash or credit card payments, tax calculation, and receipt printing. Optional cloud service is available for data backup and sharing.

**Highlights:** Record sales transactions, Manage up to 60 products, Track sales by operator, Support cash/credit card payments, Assignable tax rates, Export transaction records to CSV, Automatic receipt printing

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cloud sevice for 1 month | $1.99 | one-time |
| Buy more item-pages | $3.99 | one-time |
| Cloud sevice for 3 months | $4.99 | one-time |
| Cloud sevice for 12 months | $17.99 | one-time |


### ShiftZen

[App page](https://appshunter.io/ios/app/shiftzen-shift-work-calendar/id1511199418)

This app helps individuals with irregular work schedules or freelance jobs accurately track their earnings. It calculates hourly wages, overtime, and unpaid breaks, providing real-time insights into income and offering detailed reports.

**Highlights:** Track hourly earnings and overtime, Calculate unpaid breaks, Organize shifts with color-coding, Export payroll reports in CSV, View shift and hours charts, Sync with Apple Calendar, Password lock with biometrics

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ShiftZen Pro | $2.99 | one-time |
| ShiftZen Pro | $4.99 | one-time |

**What reviewers like**

- 👍 Easy to use
- 👍 Convenient for tracking shifts
- 👍 Good for calculating salary/pay
- 👍 Clear and organized interface
- 👍 Helpful for managing multiple jobs

**What reviewers complain about**

- 🐛 App crashes frequently
- 🐛 App won't open after updates
- 🐛 Data loss after reinstallation
- 🐛 Dates and days not matching
- 🐛 Missing days in calendar

**Reported bugs**

- App keeps crashing after update
- App stops working, keeps quitting
- App closes immediately upon opening
- App opens to a specific date (10/21) and requires scrolling
- Duplicate dates in April

**Requested features**

- Update for ISO18
- Add ability to display non-shift appointments
- Add ability to display holidays
- More color options


## Frequently asked questions

### Is POS S Pro free?

POS S Pro costs $23.99, and also offers in-app purchases.

### Is ShiftZen free?

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

### Which has better reviews, POS S Pro or ShiftZen?

POS S Pro is rated higher. POS S Pro averages 5.0 out of 5 from 1 ratings, while ShiftZen averages 3.9 from 18 ratings.

### Do POS S Pro or ShiftZen have ads?

ShiftZen shows ads; POS S Pro does not.

### Which is updated more often, POS S Pro or ShiftZen?

POS S Pro ships an update every 4 weeks, and ShiftZen every 12 months. Most recently, POS S Pro was updated on July 7, 2026 and ShiftZen on September 22, 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.*