HVAC Decoder vs EWC Controls, LLC
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
HVAC Decoder
Decode HVAC model and serial numbers from major brands. This utility app provides thousands of model numbers and can email search results. It supports a wide range of HVAC equipment and offers close matches for unknown numbers.
- Decode HVAC model numbers
- Decode HVAC serial numbers
- Supports major HVAC brands
- Thousands of model numbers
- Email search results
- Close match functionality
- Report missing data
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This app will decode the model number nomenclature of most HVAC companies. It has all the major brand names with many thousands of model numbers. It will also decode the serial number for many HVAC companies. It has the ability to email the search results in HTML format via an installed mail client. App is effective at decoding model and serial numbers for packaged units, air conditioners / condensing units, air handlers, evaporator coils, furnaces, heat pumps, boilers, chillers, split systems / mini splits, geothermal systems, and more. If the model number is not found exactly it will try a close match. If there is no close match it will give you the option to report missing data. The data is constantly updated and purchase of the app gets you free updates forever.
EWC Controls, LLC
This app helps EWC contractors determine their zoning system requirements. It features a Bypass Calculator to recommend damper models and sizes, and a Control Panel Finder to suggest compatible control panels. Discover products and features to assist in setting up your zoning system.
- Bypass Damper Calculator
- Control Panel Finder
- Product Discovery
- Zoning System Setup Assistance
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Built for EWC contractors, use our new mobile app to determine your EWC zoning system needs. Use the Bypass Calculator to find out what model and size Bypass Damper you should use with your system based on your input. Use the Control Panel Finder to find out what model Control Panels you can use based on what you need. Discover products and features that will help you decide what parts you need to set up your zoning system!
Screenshots
Verdict
The clearest difference is price: EWC Controls, LLC at Free against HVAC Decoder's $9.99. EWC Controls, LLC also leads on rating (5.0 vs 4.0) and review sentiment (100% vs 69%). HVAC Decoder's advantage is ratings volume (28 vs 5) and iOS requirement (14.0 vs 16.4). On ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
EWC Controls, LLC is free to download; HVAC Decoder costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.
EWC Controls, LLC holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: HVAC Decoder has 28 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 69% of HVAC Decoder's written reviews are positive against 100% of EWC Controls, LLC's.
HVAC Decoder ships an update every 3 months, EWC Controls, LLC every 9 days. The most recent releases landed on October 7, 2026 and October 2, 2026 respectively.
| Parameter | HVAC Decoder | EWC Controls, LLC |
|---|---|---|
| Price | $9.99 | Free — better |
| Rating | 4.0 (28 ratings) | 5.0 (5 ratings) — better |
| Positive reviews | 68.8% of reviews | 100.0% of reviews — better |
| Number of ratings | 28 — better | 5 |
| Update frequency | Every 3 months | Every 9 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 14.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 6 MB | 38 MB |
| Age rating | 4+ | 4+ |
| Developer | Charles Cope | EWC Controls, Inc. |
Customer experience
HVAC Decoder
EWC Controls, LLC
In-app purchases
HVAC Decoder
No in-app purchases
EWC Controls, LLC
No in-app purchases
Questions
Is HVAC Decoder free?
Is EWC Controls, LLC free?
Which has better reviews, HVAC Decoder or EWC Controls, LLC?
Do HVAC Decoder or EWC Controls, LLC have ads?
Which is updated more often, HVAC Decoder or EWC Controls, LLC?
Other comparisons
