# Johnstone Supply HVACR vs FieldMind

The clearest difference is in-app purchases: Johnstone Supply HVACR at none against FieldMind's 4. Johnstone Supply HVACR also leads on ads (none vs shown) and rating (4.9 vs 4.6). FieldMind's advantage is update cadence (every 5 days vs every 2 months). On price, review sentiment, ratings volume and device support there is nothing between them.

Both are free to download. FieldMind sells 4 in-app purchases, starting at $29.99 per month. Johnstone Supply HVACR asks for nothing beyond the download.

Johnstone Supply HVACR holds the better App Store score, 4.9 against 4.6. Both are backed by a comparable volume of ratings — 8 and 9 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Johnstone Supply HVACR ships an update every 2 months, FieldMind every 5 days. The most recent releases landed on November 4, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | Johnstone Supply HVACR | FieldMind |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (8 ratings)](https://appshunter.io/ios/app/johnstone-supply-hvacr/id6654926877/reviews)** | [4.6 (9 ratings)](https://appshunter.io/ios/app/fieldmind/id6749101345/reviews) |
| Number of ratings | 8 | **9** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 5 days** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 92 MB | 103 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Johnstone Supply](https://appshunter.io/developer/492852821) | [FieldMind](https://appshunter.io/developer/6776445796) |

## What reviewers say

### Johnstone Supply HVACR

[App page](https://appshunter.io/ios/app/johnstone-supply-hvacr/id6654926877)

Access a comprehensive catalog of HVAC and refrigeration parts, supplies, and equipment. Check real-time inventory, scan product barcodes for quick identification, and utilize integrated contractor tools. Request an account to streamline your procurement process.

**Highlights:** HVAC & refrigeration parts catalog, Real-time availability checks, Barcode and nameplate scanning, Integrated contractor tools, AI-powered virtual assistant, Seamless website integration

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

**In-app purchases:** none


### FieldMind

[App page](https://appshunter.io/ios/app/fieldmind/id6749101345)

This AI assistant helps field technicians by providing instant access to company knowledge bases and team expertise through chat. It simplifies work orders, service calls, and repairs by offering quick answers, relevant information, and real-time guidance.

**Highlights:** Chat-based AI assistance, Access company knowledge base, Instant repair steps, Search manuals and past tickets, Real-time service guidance, Generate parts lists, View service history

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FieldMind HVAC Library (Monthly) | $29.99 | per month |
| FieldMind HVAC Library (Monthly) | $29.99 | per month |
| FieldMind HVAC Library (Annual) | $299.99 | per year |
| FieldMind HVAC Library (Annual) | $299.99 | per year |


## Frequently asked questions

### Is Johnstone Supply HVACR free?

Johnstone Supply HVACR is free to download, with no in-app purchases.

### Is FieldMind free?

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

### Which has better reviews, Johnstone Supply HVACR or FieldMind?

Johnstone Supply HVACR is rated higher. Johnstone Supply HVACR averages 4.9 out of 5 from 8 ratings, while FieldMind averages 4.6 from 9 ratings.

### Do Johnstone Supply HVACR or FieldMind have ads?

FieldMind shows ads; Johnstone Supply HVACR does not.

### Which is updated more often, Johnstone Supply HVACR or FieldMind?

Johnstone Supply HVACR ships an update every 2 months, and FieldMind every 5 days. Most recently, Johnstone Supply HVACR was updated on November 4, 2026 and FieldMind on November 8, 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.*