# IGP vs Function Staff

The clearest difference is update cadence: IGP at every 8 months against Function Staff's every 33 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

IGP ships an update every 8 months, Function Staff every 33 months. The most recent releases landed on September 19, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | IGP | Function Staff |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 8 months** | Every 33 months |
| Size | 12 MB | 49 MB |
| Requires iOS | 12.0 | **11.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Kusdom Limited](https://appshunter.io/developer/1296158883) | [Function Staff Ltd](https://appshunter.io/developer/1564616260) |

## What reviewers say

### IGP

[App page](https://appshunter.io/ios/app/igp/id1316446611)

**Features:** macOS Compatibility

**In-app purchases:** none


### Function Staff

[App page](https://appshunter.io/ios/app/function-staff/id1438861232)

**In-app purchases:** none


## Frequently asked questions

### Is IGP free?

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

### Is Function Staff free?

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

### Do IGP or Function Staff have ads?

Neither IGP nor Function Staff shows ads.

### Which is updated more often, IGP or Function Staff?

IGP ships an update every 8 months, and Function Staff every 33 months. Most recently, IGP was updated on September 19, 2026 and Function Staff on September 10, 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.*