# LRV Contrast Calculator vs Gasmate

The clearest difference is iOS requirement: LRV Contrast Calculator at 8.0 against Gasmate's 13.0. 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.

## The numbers

| Metric | LRV Contrast Calculator | Gasmate |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 30 months | — |
| Monetization | Free | — |
| Size | 3 MB | 193 MB |
| Requires iOS | **8.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Behzad Gorimar](https://appshunter.io/developer/1125854088) | [NINGBO YIMI ELECTRICAL APPLIANCES CO LTD](https://appshunter.io/developer/1422205541) |

## What reviewers say

### LRV Contrast Calculator

[App page](https://appshunter.io/ios/app/lrv-contrast-calculator/id1216079807)

Calculate the required Luminance Reflectance Value (LRV) contrast between adjoining materials. Essential for architects, designers, and consultants to meet accessibility standards for low-vision individuals.

**Highlights:** Calculates LRV contrast percentage, Supports USA (ADA) and Australia (AS/NZ) formulas, Useful for architects and designers, Helps identify building elements for low vision, Meets accessibility standards

**Features:** macOS Compatibility

**In-app purchases:** none


### Gasmate

[App page](https://appshunter.io/ios/app/gasmate/id6747654657)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is LRV Contrast Calculator free?

LRV Contrast Calculator is free to download, with no in-app purchases.

### Is Gasmate free?

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

### Do LRV Contrast Calculator or Gasmate have ads?

Neither LRV Contrast Calculator nor Gasmate shows ads.

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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.*