# Gas Rate Calculator vs Installer Connect

The clearest difference is price: Installer Connect at Free against Gas Rate Calculator's $4.99. Installer Connect also leads on update cadence (every 3 months vs every 12 months). Gas Rate Calculator's advantage is review sentiment (77% vs 36%) and iOS requirement (7.0 vs 17.0). On ads, in-app purchases, monetization model and device support there is nothing between them.

Installer Connect is free to download; Gas Rate Calculator costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Gas Rate Calculator ships an update every 12 months, Installer Connect every 3 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Gas Rate Calculator | Installer Connect |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Positive reviews | **76.9% of reviews** | 36.4% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 3 months** |
| Monetization | Free | Free |
| Size | 5 MB | 23 MB |
| Requires iOS | **7.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Little App Company](https://appshunter.io/developer/406182284) | [Ideal Boilers](https://appshunter.io/developer/1326270378) |

## What reviewers say

### Gas Rate Calculator

[App page](https://appshunter.io/ios/app/gas-rate-calculator/id406389136)

Calculate domestic gas rates for Imperial and Metric gas meters up to 16 cubic metres. This tool is designed for Gas Service Engineers and Installers, offering the ability to email results directly.

**Highlights:** Calculates Imperial gas rates, Calculates Metric gas rates, Supports meters up to 16 cubic metres, Email results feature, Designed for engineers and installers

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 🚀 Saves time
- ✅ Accurate calculations
- 💡 Includes torch function
- 🔄 Reliable with updates

**What reviewers complain about**

- 🐛 Difficulty stopping at exact time
- 🐛 Cannot modify local gas values
- 🐛 Limited meter dial choices
- 🐛 Inaccurate calculations due to limited choices
- 🐛 Calorific value incorrect for different gases

**Reported bugs**

- App won't open after updates
- Does not work on iOS 8
- Fault with start and end meter readings
- Rogue calculations being shown
- Calorific value is the same for propane, natural gas and butane in metric mode

**Requested features**

- Add a timer function
- Allow modification of gas values
- Allow counting revolutions for better data
- Add an "open-in" option for data transfer
- Add an audio/alarm indicator for the last 10 seconds


### Installer Connect

[App page](https://appshunter.io/ios/app/installer-connect/id1483057431)

This app helps registered heating installers manage their work and earn rewards. Features include product registration, appointment planning, and access to marketing materials. It's designed to streamline daily tasks and offer incentives for using specific brands.

**Highlights:** Barcode product registration, Registration history management, Appointment and service reminders, Accreditation program access, Local sales manager contact, Marketing literature access

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

**In-app purchases:** none


## Frequently asked questions

### Is Gas Rate Calculator free?

Gas Rate Calculator costs $4.99, with no in-app purchases.

### Is Installer Connect free?

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

### Do Gas Rate Calculator or Installer Connect have ads?

Neither Gas Rate Calculator nor Installer Connect shows ads.

### Which is updated more often, Gas Rate Calculator or Installer Connect?

Gas Rate Calculator ships an update every 12 months, and Installer Connect every 3 months. Most recently, Gas Rate Calculator was updated on November 1, 2026 and Installer Connect on November 3, 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.*