HVAC Decoder vs ICM Omni
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.
ICM Omni
This utility app allows users to reconfigure NFC-compatible devices by adjusting modes and parameters. Save custom settings, read device memory to confirm programming, and replace legacy ICM parts with ease.
- Reconfigure NFC compatible devices
- Adjust device mode and parameters
- Save custom device programs
- Read device memory for confirmation
- Replace legacy ICM parts
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The ICM Omni app supports a new line of NFC compatible products that gives the user the ability to reconfigure their device at will. (See full list of compatible products below.) To program, select your device, then adjust its mode and parameters to fit your application. With all the parameters set, place the back of your phone next to the large NFC logo located on the device and press the Program button. After a brief pause your device is ready to use. Want to confirm that your device programmed successfully? Read the memory of your device to bring up a list of its current mode and parameters. Press the save icon in the top right corner of the parameter screen to save a program for later use. Trying to replace another ICM part? Replace Legacy Product allows you to search for the part you are trying to replace and adjust its parameters accordingly. Compatible products: ICM 5-Wire Timer (ICM-UFPT-5), ICM 2-Wire Timer (ICM-UFPT-2), Universal Head Pressure Control (ICM-325A), Universal Defrost Control (ICM-UDEFROST)
Screenshots
Verdict
The clearest difference is review sentiment: HVAC Decoder at 69% against ICM Omni's 0%. HVAC Decoder also leads on ratings volume (28 vs 1). ICM Omni's advantage is price (Free vs $9.99) and rating (5.0 vs 4.0). On ads, in-app purchases, device support and iOS requirement 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
ICM Omni is free to download; HVAC Decoder costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.
ICM Omni 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 1, so its average is the more settled of the two. Written reviews complicate that: 69% of HVAC Decoder's written reviews are positive against 0% of ICM Omni's, so the app with the better star average is not the one people write more warmly about.
HVAC Decoder ships an update every 3 months, ICM Omni monthly. The most recent releases landed on October 7, 2026 and October 14, 2026 respectively.
| Parameter | HVAC Decoder | ICM Omni |
|---|---|---|
| Price | $9.99 | Free — better |
| Rating | 4.0 (28 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 68.8% of reviews — better | 0.0% of reviews |
| Number of ratings | 28 — better | 1 |
| Update frequency | Every 3 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 14.0 | 14.0 |
| Further details — not scored | ||
| Size | 6 MB | 51 MB |
| Age rating | 4+ | 4+ |
| Developer | Charles Cope | ICM controls corp |
Customer experience
HVAC Decoder
ICM Omni
In-app purchases
HVAC Decoder
No in-app purchases
ICM Omni
No in-app purchases









