# USVI Pay vs ProSolar Systems

The clearest difference is update cadence: ProSolar Systems at monthly against USVI Pay's every 3 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.

USVI Pay ships an update every 3 months, ProSolar Systems monthly. Both last shipped on October 25, 2026.

## The numbers

| Metric | USVI Pay | ProSolar Systems |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.6 (9 ratings)](https://appshunter.io/ios/app/prosolar-systems/id1561720621/reviews)** |
| Number of ratings | — | **9** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Monthly** |
| Monetization | — | Free |
| Size | 118 MB | 38 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ALLIED COMMERICAL FINANCIAL](https://appshunter.io/developer/1536475560) | [ProSolar Sytems LLC](https://appshunter.io/developer/1561720623) |

## What reviewers say

### USVI Pay

[App page](https://appshunter.io/ios/app/usvi-pay/id1536475558)

**Features:** macOS Compatibility

**In-app purchases:** none


### ProSolar Systems

[App page](https://appshunter.io/ios/app/prosolar-systems/id1561720621)

This business communication app allows users to connect with ProSolar Systems after registration. Receive updates via push notifications and in-app messages to enhance your purchasing experience. Share your feedback by writing a review after your solar system purchase.

**Highlights:** User registration, In-app messaging, Push notifications, Customer reviews, Direct communication

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

**In-app purchases:** none


## Frequently asked questions

### Is USVI Pay free?

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

### Is ProSolar Systems free?

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

### Do USVI Pay or ProSolar Systems have ads?

Neither USVI Pay nor ProSolar Systems shows ads.

### Which is updated more often, USVI Pay or ProSolar Systems?

USVI Pay ships an update every 3 months, and ProSolar Systems monthly. Most recently, USVI Pay was updated on October 25, 2026 and ProSolar Systems on October 25, 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.*