Comparison

Field Technician App vs HVAC Tech Assistant

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Field Technician App

Features
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This app will assist technicians in swiftly and precisely pinpointing problems with cooler controllers, conducting diagnostic assessments, change parameters and replacing or installing controllers as needed.

About

HVAC Tech Assistant

Features
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HVAC Equipment Lookup helps HVAC technicians identify equipment, find model information, locate replacement parts, view technical specifications, troubleshoot systems, and manage service history. Supports furnaces, air conditioners, heat pumps, package units, mini-splits, boilers, and more. Quickly identify HVAC equipment and access important information to help diagnose issues, locate parts, manage service records, and work more efficiently in the field. New users receive starter AI credits after creating an account. FEATURES • Equipment Lookup and Identification Search HVAC equipment by model number, manufacturer, and equipment details. • Nameplate Photo Scanning Capture equipment nameplates and extract available model and specification information. • Technical Specifications Access model information and technical details for supported equipment. • Parts Sourcing Find replacement-part information and possible sourcing options. • Diagnostic Assistance Use AI-powered tools for troubleshooting guidance and service research. • Customer Equipment History Track equipment information connected to customer records. • Service Record Management Organize service notes, equipment history, and maintenance information. • Fast Mobile Search Quickly search equipment and technical information while working in the field. • Field Service Productivity Tools Keep equipment, customer, and service information organized in one place. Deep Storm Alpha HVAC helps reduce time spent searching for equipment information and gives technicians faster access to service-related data. The app supports work involving furnaces, air conditioners, heat pumps, package units, mini-splits, wall heaters, and other HVAC equipment. PURCHASE OPTIONS Deep Storm Alpha HVAC offers the following options: • Starter AI credits for new users • 50 AI Credits as a one-time consumable purchase • Monthly Premium subscription • Yearly Premium subscription Monthly and Yearly Premium provide unlimited AI use and access to all premium features while the subscription remains active. The 50 AI Credits purchase is not a subscription. Credits are added to your account, never expire, and may be purchased multiple times. PREMIUM FEATURES • Unlimited AI diagnostics and assistance • Unlimited equipment identification tools • Full access to premium HVAC tools • Expanded service and workflow features • Ongoing feature improvements SUBSCRIPTION INFORMATION Monthly Premium and Yearly Premium are auto-renewing subscriptions. • Payment will be charged to your Apple ID account at confirmation of purchase • Subscriptions automatically renew unless canceled at least 24 hours before the end of the current billing period • Your account will be charged for renewal within 24 hours before the end of the current period • You can manage or cancel subscriptions in your App Store account settings after purchase DISCLAIMER Deep Storm Alpha HVAC is an informational tool intended to assist HVAC professionals with equipment identification, technical research, diagnostics, and service management. Users must independently verify all specifications, wiring diagrams, part numbers, safety procedures, refrigerant requirements, and service recommendations before performing any work. This app does not replace manufacturer documentation, equipment manuals, local codes, industry standards, licensing requirements, or professional judgment. All information is provided as an assistive resource. Users are responsible for actions taken based on information obtained through the app. Privacy Policy https://swlabsgroupllc.com/PrivacyPolicy Terms of Use https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Field Technician App4 screens
HVAC Tech Assistant4 screens

Verdict

The call

The clearest difference is in-app purchases: Field Technician App at none against HVAC Tech Assistant's 3. Field Technician App also leads on iOS requirement (13.0 vs 26.2). HVAC Tech Assistant's advantage is update cadence (fortnightly vs every 2 months). On price, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. HVAC Tech Assistant sells 3 in-app purchases, starting at $5.99 per month. Field Technician App asks for nothing beyond the download.

UpkeepUpdate frequency

Field Technician App ships an update every 2 months, HVAC Tech Assistant fortnightly. The most recent releases landed on October 12, 2026 and October 7, 2026 respectively.

Scorecard3 real differences · 3 level
Field Technician App versus HVAC Tech Assistant: the parameters behind the verdict, then further details
ParameterField Technician AppHVAC Tech Assistant
PriceFreeFree
Update frequencyEvery 2 monthsFortnightly — better
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPodiPhone, iPad
Requires iOS13.0 — better26.2
Further details — not scored
Size26 MB13 MB
Age rating4+4+
DevelopereBest-IoTChris Johnston

In-app purchases

None

Field Technician App

No in-app purchases

3 purchases

HVAC Tech Assistant

Subscriptions2
  • Deep Storm Alpha HVAC Premium$5.991 Month
  • Premium Yearly$59.991 Year
One-time1
  • 50 AI Credits$4.99

Questions

Is Field Technician App free?
Field Technician App is free to download, with no in-app purchases.
Is HVAC Tech Assistant free?
HVAC Tech Assistant is free to download, with in-app purchases available.
Do Field Technician App or HVAC Tech Assistant have ads?
Neither Field Technician App nor HVAC Tech Assistant shows ads.
Which is updated more often, Field Technician App or HVAC Tech Assistant?
Field Technician App ships an update every 2 months, and HVAC Tech Assistant fortnightly. Most recently, Field Technician App was updated on October 12, 2026 and HVAC Tech Assistant on October 7, 2026.

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