# PIIB vs VIKI APP

The clearest difference is update cadence: VIKI APP at monthly against PIIB's every 2 months. PIIB's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 16.2). On price, ads and in-app purchases there is nothing between them.

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

PIIB ships an update every 2 months, VIKI APP monthly. The most recent releases landed on September 26, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | PIIB | VIKI APP |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | Free | — |
| Size | 12 MB | 53 MB |
| Requires iOS | **13.0** | 16.2 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Polska Izba Inzynierow Budownictwa](https://appshunter.io/developer/1580742501) | [Storm Gray Unit Sp. z o. o.](https://appshunter.io/developer/1609468368) |

## What reviewers say

### PIIB

[App page](https://appshunter.io/ios/app/piib/id1580742498)

Access membership information, industry services, publications, and materials. Update your contact details, register for training, and create a professional profile. Stay informed with news, announcements, and important notifications.

**Highlights:** Membership information access, Industry services and publications, Update contact details, Register for training, Professional profile creation, News and announcements, Download membership certificates

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

**In-app purchases:** none


### VIKI APP

[App page](https://appshunter.io/ios/app/viki-app/id1609468366)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PIIB free?

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

### Is VIKI APP free?

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

### Do PIIB or VIKI APP have ads?

Neither PIIB nor VIKI APP shows ads.

### Which is updated more often, PIIB or VIKI APP?

PIIB ships an update every 2 months, and VIKI APP monthly. Most recently, PIIB was updated on September 26, 2026 and VIKI APP on October 8, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*