# Boostaff vs Simple Invoice PDF

The clearest difference is in-app purchases: Boostaff at none against Simple Invoice PDF's 1. Boostaff also leads on iOS requirement (15.1 vs 18.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Simple Invoice PDF sells 1 one-off in-app purchase. Boostaff asks for nothing beyond the download.

Boostaff ships an update every 2 weeks, Simple Invoice PDF fortnightly. The most recent releases landed on October 31, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Boostaff | Simple Invoice PDF |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/boostaff/id6773784583/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Fortnightly |
| Monetization | Free | — |
| Size | 64 MB | 2 MB |
| Requires iOS | **15.1** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [mercy onuoha](https://appshunter.io/developer/6773784585) | [Serghei Eschin](https://appshunter.io/developer/6774241012) |

## What reviewers say

### Boostaff

[App page](https://appshunter.io/ios/app/boostaff/id6773784583)

This app connects businesses needing immediate staff coverage with verified professionals in their area. Businesses can post shifts in seconds and track staff in real-time, while workers can find flexible job opportunities and manage their earnings.

**Highlights:** Post shifts in seconds, Get matched with verified workers, Real-time staff tracking, Session-based timekeeping, Browse and accept open shifts, Secure job code confirmation, Rate workers after shifts

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

**In-app purchases:** none


### Simple Invoice PDF

[App page](https://appshunter.io/ios/app/simple-invoice-pdf/id6788337612)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Simple Invoice Pro | $9.99 | one-time |


## Frequently asked questions

### Is Boostaff free?

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

### Is Simple Invoice PDF free?

Simple Invoice PDF is free to download, with in-app purchases available.

### Do Boostaff or Simple Invoice PDF have ads?

Neither Boostaff nor Simple Invoice PDF shows ads.

### Which is updated more often, Boostaff or Simple Invoice PDF?

Boostaff ships an update every 2 weeks, and Simple Invoice PDF fortnightly. Most recently, Boostaff was updated on October 31, 2026 and Simple Invoice PDF on November 5, 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.*