# Sizing US/CA vs A/C Recharge Assistant

Sizing US/CA and A/C Recharge Assistant both sit at 3.2 stars, but that hides the real split: 50% of A/C Recharge Assistant's written reviews are positive against 11% of Sizing US/CA's. A/C Recharge Assistant also leads on ads (none vs shown) and monetization model (free vs ad-supported). Sizing US/CA's advantage is update cadence (every 6 weeks vs every 5 months). On price, rating, ratings volume 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.

On the App Store both sit at effectively the same score — 3.2 for Sizing US/CA against 3.3 for A/C Recharge Assistant. Both are backed by a comparable volume of ratings — 13 and 6 respectively. Written reviews are what separate them: 11% of Sizing US/CA's written reviews are positive against 50% of A/C Recharge Assistant's.

Sizing US/CA ships an update every 6 weeks, A/C Recharge Assistant every 5 months. The most recent releases landed on June 3, 2026 and June 11, 2026 respectively.

## The numbers

| Metric | Sizing US/CA | A/C Recharge Assistant |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.2 (13 ratings)](https://appshunter.io/ios/app/sizing-usca/id1420112805/reviews) | **[3.3 (6 ratings)](https://appshunter.io/ios/app/ac-recharge-assistant/id1511743959/reviews)** |
| Number of ratings | **13** | 6 |
| Positive reviews | 11.1% of reviews | **50.0% of reviews** |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 6 weeks** | Every 5 months |
| Monetization | Ad-supported | **Free** |
| Size | 27 MB | 19 MB |
| Requires iOS | 10.0 | **9.3** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Gastite Products LLC](https://appshunter.io/developer/668653608) | [TSI Products, Inc.](https://appshunter.io/developer/1509993373) |

## What reviewers say

### Sizing US/CA

[App page](https://appshunter.io/ios/app/sizing-usca/id1420112805)

This utility app helps installers determine the correct size of flexible gas piping for their projects. It calculates the appropriate pipe size based on gas type, tubing length, supply pressure, and flow capacity. Users can also access installation guides and product information.

**Highlights:** Flexible gas pipe sizing, US and CA location selector, Automatic value adjustment, Certification card access, Installation guide viewer, Product search, Direct contact with developer

**Features:** macOS Compatibility

**In-app purchases:** none


### A/C Recharge Assistant

[App page](https://appshunter.io/ios/app/ac-recharge-assistant/id1511743959)

This app, when used with a Smart Chip Pro, guides you through recharging your vehicle's A/C system. It ensures accurate refrigerant levels to provide cold air, preventing over or undercharging. The process is designed to be simple and can be completed in under 15 minutes.

**Highlights:** Accurate A/C recharge, Real-time fill level calculation, Guided step-by-step process, 15-minute recharge time, No mechanical skills required, Pairs with Smart Chip Pro

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sizing US/CA free?

Sizing US/CA is free to download, with no in-app purchases.

### Is A/C Recharge Assistant free?

A/C Recharge Assistant is free to download, with no in-app purchases.

### Which has better reviews, Sizing US/CA or A/C Recharge Assistant?

A/C Recharge Assistant is rated higher. Sizing US/CA averages 3.2 out of 5 from 13 ratings, while A/C Recharge Assistant averages 3.3 from 6 ratings.

### Do Sizing US/CA or A/C Recharge Assistant have ads?

Sizing US/CA shows ads; A/C Recharge Assistant does not.

### Which is updated more often, Sizing US/CA or A/C Recharge Assistant?

Sizing US/CA ships an update every 6 weeks, and A/C Recharge Assistant every 5 months. Most recently, Sizing US/CA was updated on June 3, 2026 and A/C Recharge Assistant on June 11, 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.*