# Contactor vs Chart Builder

The clearest difference is monetization model: Chart Builder at free with in-app purchases against Contactor's subscription. Chart Builder also leads on update cadence (weekly vs every 7 months) and ratings volume (23 vs 2). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. Contactor sells 2 in-app purchases, starting at $9.99 per month and Chart Builder sells 2 in-app purchases, starting at $7.99 per 7 days. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for Contactor against 5.0 for Chart Builder. That said, the two scores are not equally well evidenced: Chart Builder has 23 ratings behind it against 2, so its average is the more settled of the two.

Contactor ships an update every 7 months, Chart Builder weekly. Both last shipped on October 24, 2026.

## The numbers

| Metric | Contactor | Chart Builder |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/contactor-hvac-tools-and-prices/id6739550019/reviews) | [5.0 (23 ratings)](https://appshunter.io/ios/app/chart-builder-vizzy/id6748272076/reviews) |
| Number of ratings | 2 | **23** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 7 months | **Weekly** |
| Monetization | Subscription | **Free with in-app purchases** |
| Size | 107 MB | 54 MB |
| Requires iOS | **15.0.0** | 15.3 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [DECODATION](https://appshunter.io/developer/1677960582) | [ILYA BOIKA](https://appshunter.io/developer/1784103564) |

## What reviewers say

### Contactor

[App page](https://appshunter.io/ios/app/contactor-hvac-tools-and-prices/id6739550019)

This app connects HVAC technicians with local suppliers, offering real-time refrigerant pricing, appointment booking, and a community forum. It streamlines daily tasks for professionals by providing essential tools and information in one place.

**Highlights:** Live refrigerant pricing lookup, Supplier map & contact profiles, Easy appointment scheduling, HVAC technician forum, Tools, reminders & calculators

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Contactor HVAC App: Monthly | $9.99 | per month |
| Contactor HVAC App: Annual | $59.99 | per year |


### Chart Builder

[App page](https://appshunter.io/ios/app/chart-builder-vizzy/id6748272076)

Effortlessly generate professional charts using AI prompts or by selecting specific chart types. This app allows for easy data editing, visual comparison of datasets, and exporting creations as images. It's designed to simplify complex data visualization for everyone.

**Highlights:** AI prompt-driven chart generation, Manual chart type selection, In-app data editing, Tier maker functionality, Export charts as images, History and autosave

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $7.99 | per 7 days |
| Annual | $29.99 | per year |


## Frequently asked questions

### Is Contactor free?

Contactor is free to download, with in-app purchases available.

### Is Chart Builder free?

Chart Builder is free to download, with in-app purchases available.

### Which has better reviews, Contactor or Chart Builder?

Contactor and Chart Builder are both rated 5.0 out of 5 on the App Store, from 2 and 23 ratings respectively.

### Do Contactor or Chart Builder have ads?

Neither Contactor nor Chart Builder shows ads.

### Which is updated more often, Contactor or Chart Builder?

Contactor ships an update every 7 months, and Chart Builder weekly. Most recently, Contactor was updated on October 24, 2026 and Chart Builder on October 24, 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.*