# ROL Assistant vs Polyverse

The clearest difference is iOS requirement: ROL Assistant at 11.4 against Polyverse's 17.0. On price, update cadence, 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.

ROL Assistant ships an update every 4 months, Polyverse every 5 months. The most recent releases landed on September 27, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | ROL Assistant | Polyverse |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/rol-assistant/id775678395/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 5 months |
| Monetization | Free | — |
| Size | 28 MB | 1 MB |
| Requires iOS | **11.4** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Astron International, Inc.](https://appshunter.io/developer/775678398) | [Ashish Singh](https://appshunter.io/developer/1762893867) |

## What reviewers say

### ROL Assistant

[App page](https://appshunter.io/ios/app/rol-assistant/id775678395)

This utility app provides a virtual advisor for refining questions and offers extensive unit conversion tools. It also calculates steam properties and line pressure drops for various pipe materials and sizes.

**Highlights:** Virtual refining advisor, Extensive unit conversions, Steam properties calculator, Line pressure drop calculation, English and Metric units

**Features:** macOS Compatibility

**In-app purchases:** none


### Polyverse

[App page](https://appshunter.io/ios/app/polyverse/id6746525082)

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

**In-app purchases:** none


## Frequently asked questions

### Is ROL Assistant free?

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

### Is Polyverse free?

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

### Do ROL Assistant or Polyverse have ads?

Neither ROL Assistant nor Polyverse shows ads.

### Which is updated more often, ROL Assistant or Polyverse?

ROL Assistant ships an update every 4 months, and Polyverse every 5 months. Most recently, ROL Assistant was updated on September 27, 2026 and Polyverse on September 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.*