# PH System vs Shift Scheduler

The clearest difference is in-app purchases: PH System at none against Shift Scheduler's 1. PH System also leads on ads (none vs shown) and iOS requirement (13 vs 15.0). Shift Scheduler's advantage is update cadence (every 9 days vs every 15 months). On price and device support there is nothing between them.

Both are free to download. Shift Scheduler sells 1 in-app purchase, starting at $1.99 per month. PH System asks for nothing beyond the download.

PH System ships an update every 15 months, Shift Scheduler every 9 days. The most recent releases landed on October 25, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | PH System | Shift Scheduler |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 80.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 15 months | **Every 9 days** |
| Monetization | — | Free with in-app purchases |
| Size | 25 MB | 9 MB |
| Requires iOS | **13** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | +4 |
| Developer | [barnet Inc.](https://appshunter.io/developer/1203142034) | [siranet GK](https://appshunter.io/developer/1435568095) |

## What reviewers say

### PH System

[App page](https://appshunter.io/ios/app/ph-system/id1438705034)

**Features:** macOS Compatibility

**In-app purchases:** none


### Shift Scheduler

[App page](https://appshunter.io/ios/app/shift-scheduler-smart-roster/id1615881395)

Automate staff scheduling with intelligent assignment rules. Manually set shifts or let the system fill gaps fairly based on custom requirements, staff availability, and workload limits. Optimize schedules for rest and prevent burnout with advanced logic.

**Highlights:** Automated shift filling, Customizable assignment rules, Staff availability settings, Workload and hour limits, Consecutive work/shift limits, Mandatory rest periods, Shift sequencing rules

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ads  1 month | $1.99 | per month |


## Frequently asked questions

### Is PH System free?

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

### Is Shift Scheduler free?

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

### Do PH System or Shift Scheduler have ads?

Shift Scheduler shows ads; PH System does not.

### Which is updated more often, PH System or Shift Scheduler?

PH System ships an update every 15 months, and Shift Scheduler every 9 days. Most recently, PH System was updated on October 25, 2026 and Shift Scheduler on November 3, 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.*