# POSONE vs Meissa Platform Mobile

The clearest difference is update cadence: Meissa Platform Mobile at every 2 weeks against POSONE's every 2 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.

POSONE ships an update every 2 months, Meissa Platform Mobile every 2 weeks. The most recent releases landed on September 10, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | POSONE | Meissa Platform Mobile |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 19 MB | 68 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [POSCO Eco & Challenge Co., Ltd.](https://appshunter.io/developer/1475733398) | [Meissa Inc.](https://appshunter.io/developer/1485678881) |

## What reviewers say

### POSONE

[App page](https://appshunter.io/ios/app/posone/id1475733399)

This app serves as a community tool for all personnel involved in POSCO E&C construction projects. It facilitates the sharing of construction progress and information among internal and external stakeholders.

**Highlights:** Project progress sharing, Information exchange, Construction site communication, Internal and external stakeholder collaboration, Community building for project teams

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

**In-app purchases:** none


### Meissa Platform Mobile

[App page](https://appshunter.io/ios/app/meissa-platform-mobile/id1575737553)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is POSONE free?

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

### Is Meissa Platform Mobile free?

Meissa Platform Mobile is free to download, with no in-app purchases.

### Do POSONE or Meissa Platform Mobile have ads?

Neither POSONE nor Meissa Platform Mobile shows ads.

### Which is updated more often, POSONE or Meissa Platform Mobile?

POSONE ships an update every 2 months, and Meissa Platform Mobile every 2 weeks. Most recently, POSONE was updated on September 10, 2026 and Meissa Platform Mobile on September 8, 2026.

---

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