# Shield Shift Tracker vs Mango Power One

The clearest difference is in-app purchases: Mango Power One at none against Shield Shift Tracker's 1. Mango Power One also leads on device support (3 vs 1) and iOS requirement (15.6 vs 17.0). Shield Shift Tracker's advantage is update cadence (every 2 days vs every 9 days). On price and ads there is nothing between them.

Both are free to download. Shield Shift Tracker sells 1 one-off in-app purchase. Mango Power One asks for nothing beyond the download.

Shield Shift Tracker ships an update every 2 days, Mango Power One every 9 days. The most recent releases landed on June 10, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Shield Shift Tracker | Mango Power One |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/shield-shift-tracker/id6755852365/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 9 days |
| Monetization | Free with in-app purchases | — |
| Size | 8 MB | 51 MB |
| Requires iOS | 17.0 | **15.6** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Corey Gillespie](https://appshunter.io/developer/1796727084) | [Mango Power Tech Inc.](https://appshunter.io/developer/1684111583) |

## What reviewers say

### Shield Shift Tracker

[App page](https://appshunter.io/ios/app/shield-shift-tracker/id6755852365)

Manage your demanding work schedule with a dedicated shift calendar. Track overtime, log shift trades, and visualize your entire rotation at a glance. Ideal for first responders with complex schedules.

**Highlights:** Customizable shift calendar, Overtime tracking, Shift trade logging, Monthly and weekly schedule views, Color-coded day types, Calendar export

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $4.99 | one-time |


### Mango Power One

[App page](https://appshunter.io/ios/app/mango-power-one/id6761042259)

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

**In-app purchases:** none


## Frequently asked questions

### Is Shield Shift Tracker free?

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

### Is Mango Power One free?

Mango Power One is free to download, with no in-app purchases.

### Do Shield Shift Tracker or Mango Power One have ads?

Neither Shield Shift Tracker nor Mango Power One shows ads.

### Which is updated more often, Shield Shift Tracker or Mango Power One?

Shield Shift Tracker ships an update every 2 days, and Mango Power One every 9 days. Most recently, Shield Shift Tracker was updated on June 10, 2026 and Mango Power One on September 19, 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.*