# PaySim Merchant

> End-to-end payment simulation platform for testing compliance and interoperability. (iPhone/iPad app by mSIGNIA.)

- Source: https://appshunter.io/ios/app/paysim-merchant/id1579105694 (this page in markdown: same URL + `.md`)
- Developer: [mSIGNIA](https://appshunter.io/developer/531752198)
- Category: Developer Tools, Education
- Price: Free
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 13.0 · 18 MB
- Languages: American English
- Released: 2021-08-05
- Data updated: 2026-08-25
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/paysim-merchant/id1579105694/reviews.md

## What is PaySim Merchant?

mSIGNIA’s Payment Simulator (or PaySim) is a complete, end-to-end payment simulation platform for testing compliance and interoperability including enabling 3rd-party product demonstration for various payment initiatives such as EMV 3D-Secure versions 2.1 and 2.2, SCA, FIDO, and W3C related Web Authentication and Payment Request APIs.

## Key features

- End-to-end payment simulation
- Compliance and interoperability testing
- EMV 3D-Secure 2.1 and 2.2 support
- SCA and FIDO integration
- Web Authentication and Payment Request API testing


## Frequently asked questions about PaySim Merchant

### What payment standards does PaySim Merchant support?

PaySim Merchant supports EMV 3D-Secure versions 2.1 and 2.2, SCA, FIDO, and W3C related Web Authentication and Payment Request APIs.

### Is PaySim Merchant available on Android devices?

Based on the provided information, PaySim Merchant is available for iPhone, iPad, and iPod devices. Android compatibility is not specified.

### How often is PaySim Merchant updated?

The latest version is 2025.05.3, and the app was last updated on February 26, 2026, indicating a recent and active development cycle.

### What is the age rating for PaySim Merchant?

PaySim Merchant has an age rating of 4+, making it suitable for a wide range of users.

### What are the benefits of using PaySim Merchant for developers?

Developers can use PaySim Merchant to test compliance and interoperability of payment systems, enabling third-party product demonstrations for various payment initiatives.

### Does PaySim Merchant have ads?

No, PaySim Merchant does not contain advertisements.

### What is the user rating for PaySim Merchant?

PaySim Merchant has a perfect rating of 5.0 stars based on one user review.

### When was PaySim Merchant first released?

PaySim Merchant was first released on August 5, 2021.

## Version history (last 5 releases)

### 2026.02.1 — 2026-07-13

Release PS-2026.B

### 2025.05.3 — 2026-02-26

Added expiration years for the new cards

### 2025.05.2 — 2026-02-03

Fixed user data saving and updated the MTF DS public key.

### 2025.05.1 — 2025-12-22

Release 2025.05

### 2025.04.2 — 2025-08-14

Release 2025.04 with fixed issue in parsing ACS Signed Content

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## More apps by mSIGNIA

- [PaySim OOB App](https://appshunter.io/ios/app/paysim-oob-app/id1658803224)

All apps by mSIGNIA: https://appshunter.io/developer/531752198

## Related topics

[msignia](https://appshunter.io/ios/topics/msignia)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-25.*