Comparison

SmarTech vs HVAC/R AI Pro

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

Head to head
About

SmarTech

This app connects to a digital manifold to display accurate pressure and temperature readings. It offers real-time Superheat and Subcooling calculations, supports over 109 refrigerants, and features a "Smart Charge Zone" for optimal system charging. Users can also generate and export system performance reports.

Highlights
  • Real-time pressure and temperature readings
  • Superheat and Subcooling calculations
  • 109+ refrigerant types supported
  • Smart Charge Zone indicator
  • System performance reporting
  • PDF/CSV report export
Features
Read full description

The Uniweld SmarTech™ Digital Manifold App communicates with your SmarTech™ Digital Manifold to clearly display professionally accurate pressure and temperature readings in the palm of your hand. Monitor target and actual Superheat and Subcooling calculations in real-time, as pressure and temperature readings fluctuate. Choose from over 109 different refrigerant types and create a custom list of your most commonly used refrigerants. SMART CHARGE ZONE: All the guess work is taken out of properly charging the system with the color coded Smart Charge Zone feature. The difference between the target and actual Superheat or Subcooling is shown with color indicators that signal whether the system is overcharged (RED), undercharged (BLUE), or has an accurate "In The Zone" system charge (GREEN). REPORTING: Take your business to the next level with system performance reporting. Enter company details along with customer and equipment information and with one touch, produce a SmarTech™ Verified System Performance Report that is ready for export as a PDF or CSV file. Reports can easily be emailed for saving, tracking, or printing. Uniweld Products, Inc... "Quality Tools That Go To Work With You®". This app also works as a free, stand-alone P/T Calculator!

About

HVAC/R AI Pro

This app provides HVAC and refrigeration technicians with AI-powered diagnostic assistance, duct sizing calculations, and job estimation tools. It offers step-by-step troubleshooting, airflow analysis, and photo-based equipment support to streamline service calls.

Highlights
  • AI Diagnostic Assistant
  • Step-by-step troubleshooting
  • Duct sizing calculations
  • Airflow analysis
  • Job estimate tool
  • Photo-based equipment support
  • Chat history
Features
Read full description

HVAC/R AI Pro is a field-focused assistant for HVAC and refrigeration technicians who need fast support on service calls, diagnostics, airflow, duct sizing, equipment details, and job estimates. Built by a field tech for field techs, the app helps you work through problems in plain language so you can stay focused on the equipment in front of you. AI Diagnostic Assistant Get practical guidance for common HVAC/R service issues, including: • Step-by-step troubleshooting support • Field-ready diagnostic checklists • Superheat and subcooling guidance • Static pressure and airflow analysis • Photo-based equipment and system support • Saved chat history for returning to previous jobs Equipment Scanner Use the Equipment Scanner to capture unit-label details and bring better context into Chat: • Take or choose a unit-label photo • Review detected model, serial, refrigerant, electrical, MCA, MOCP, and other equipment details • Edit scanner details before using them • Attach reviewed equipment context to Chat when you choose Duct and Airflow Tools Use built-in tools to support airflow and duct design work, including: • Duct sizing calculations • Static pressure guidance • Airflow diagnostics • Load calculation support • Saved airflow jobs Estimate Tool Create quick field estimates for service calls and repair work: • Fast job estimate support • Customer-ready estimate guidance • Saved estimate history for paid users Who It Is For HVAC/R AI Pro is made for: • New technicians learning the trade • Experienced service techs troubleshooting in the field • Installers checking airflow and duct sizing • Contractors who need quick estimate support • Refrigeration and HVAC pros who want a practical mobile reference Subscription Options Basic Plan For light or part-time users. Includes monthly AI messages, image uploads, estimate tool usage, and chat history access. Pro Plan For full-time HVAC/R professionals. Includes unlimited AI messages, unlimited image uploads, unlimited estimate tool usage, and chat history access. Subscriptions renew monthly unless canceled at least 24 hours before the end of the billing period. Pricing may vary by region and is shown in the app before purchase. HVAC/R AI Pro is designed to support trained technicians. Always follow manufacturer documentation, local codes, safety procedures, and proper field judgment. Terms of Use: https://hvacrai.com/terms

Screenshots

SmarTech3 screens
HVAC/R AI Pro4 screens

Verdict

The call

The clearest difference is rating: HVAC/R AI Pro at 4.6 against SmarTech's 3.6. HVAC/R AI Pro also leads on update cadence (every 5 weeks vs every 12 months). SmarTech's advantage is in-app purchases (none vs 2). On price, ratings volume, 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/R AI Pro sells 2 in-app purchases, starting at $7.99 per month. SmarTech asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

HVAC/R AI Pro holds the better App Store score, 4.6 against 3.6. Both are backed by a comparable volume of ratings — 9 and 5 respectively.

UpkeepUpdate frequency

SmarTech ships an update every 12 months, HVAC/R AI Pro every 5 weeks. The most recent releases landed on October 1, 2026 and October 10, 2026 respectively.

Scorecard4 real differences · 6 level
SmarTech versus HVAC/R AI Pro: the parameters behind the verdict, then further details
ParameterSmarTechHVAC/R AI Pro
PriceFreeFree
Rating3.6 (9 ratings)4.6 (5 ratings) — better
Positive reviews25.0% of reviews—
Number of ratings9 — better5
Update frequencyEvery 12 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.6 — better16.0
Further details — not scored
Size21 MB59 MB
Age rating4+17+
DeveloperUniweld Products, Inc.Christopher Brown

Customer experience

SmarTech

All ratings9 ratings
Positive55.6%
Neutral11.1%
Negative33.3%
Written reviews4 reviews
Positive25.0%
Neutral25.0%
Negative50.0%

HVAC/R AI Pro

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

SmarTech

No in-app purchases

2 purchases

HVAC/R AI Pro

Subscriptions2
  • Basic Plan$7.991 Month
  • Pro3 Days trial$19.991 Month

Questions

Is SmarTech free?
SmarTech is free to download, with no in-app purchases.
Is HVAC/R AI Pro free?
HVAC/R AI Pro is free to download, with in-app purchases available.
Which has better reviews, SmarTech or HVAC/R AI Pro?
HVAC/R AI Pro is rated higher. SmarTech averages 3.6 out of 5 from 9 ratings, while HVAC/R AI Pro averages 4.6 from 5 ratings.
Do SmarTech or HVAC/R AI Pro have ads?
Neither SmarTech nor HVAC/R AI Pro shows ads.
Which is updated more often, SmarTech or HVAC/R AI Pro?
SmarTech ships an update every 12 months, and HVAC/R AI Pro every 5 weeks. Most recently, SmarTech was updated on October 1, 2026 and HVAC/R AI Pro on October 10, 2026.

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