SmarTech vs HVAC/R AI Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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!
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.
- AI Diagnostic Assistant
- Step-by-step troubleshooting
- Duct sizing calculations
- Airflow analysis
- Job estimate tool
- Photo-based equipment support
- Chat history
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HVAC/R AI Pro is an AI-powered HVAC troubleshooting and field toolkit for heating, air conditioning, and refrigeration technicians. Describe a system problem, share measurements or photos, and get guided diagnostic suggestions. Analyze technical documents, create downloadable files, and use practical calculators in one app. AI TROUBLESHOOTING • Ask about air conditioners, heat pumps, furnaces, and refrigeration systems. • Share error codes, pressures, temperatures, electrical readings, and job photos. • Work through suggested diagnostic checks and follow-up questions. • Adjust the level of detail to your technician experience. DOCUMENT ANALYSIS & FILE CREATION Available with Basic or Pro. • Upload supported PDF, Word, spreadsheet, and text files. • Ask questions about service manuals, specifications, and blueprint PDFs. • Get help summarizing technical information and organizing findings. • Request downloadable PDFs, Word documents, spreadsheets, CSV files, and more. • Preview, download, share, or request revisions to supported files. EQUIPMENT NAMEPLATE SCANNER • Take or choose a photo of an equipment label. • Detect model, serial, refrigerant, and electrical details. • Review and correct the information before adding it to AI Chat. AIRFLOW & DUCT SIZING • Size round and rectangular ductwork. • Calculate static pressure and friction rate. • Work with CFM and airflow measurements. • Build Total Effective Length (TEL) worksheets. • Save eligible airflow jobs with a paid plan. REFRIGERATION TOOLS • Refrigerant pressure-temperature (PT) charts. • Superheat and subcooling calculations. • Walk-in box-load, leak-rate, and defrost tools. • Refrigerant service logs and saved records. REPAIR & REPLACEMENT ESTIMATES Generate preliminary estimate ranges using job scope, labor, materials, and pricing inputs. Review all results with your own professional judgment. SAVED WORK & WEB DASHBOARD Basic and Pro let you save eligible chats, estimates, and job records; organize chats into folders; and access supported saved work on mobile and the web dashboard. Pro can look up relevant text from your saved past chats when requested. FREE & PAID PLANS Start with limited free AI troubleshooting and available field tools. Basic and Pro add document analysis, AI-created downloadable files, saved work, and more AI usage. AI chat, photos, documents, generated files, and estimates share an account usage allowance. Usage, storage, and technical limits apply. Plans and prices are shown before purchase. Subscriptions renew automatically unless canceled at least 24 hours before the current period ends. Payment is charged to your Apple Account. Manage or cancel subscriptions in your App Store settings. AI suggestions, calculations, documents, and estimates can contain errors. Verify results against measurements, manufacturer instructions, local codes, and safe service procedures. Privacy Policy: https://hvacrai.com/privacy Terms of Use: https://hvacrai.com/terms
Screenshots
Verdict
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 (monthly 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
Both are free to download. HVAC/R AI Pro sells 2 in-app purchases, starting at $9.99 per month. SmarTech asks for nothing beyond the download.
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.
SmarTech ships an update every 12 months, HVAC/R AI Pro monthly. The most recent releases landed on November 6, 2026 and November 14, 2026 respectively.
| Parameter | SmarTech | HVAC/R AI Pro |
|---|---|---|
| Price | Free | Free |
| Rating | 3.6 (9 ratings) | 4.6 (5 ratings) — better |
| Positive reviews | 25.0% of reviews | — |
| Number of ratings | 9 — better | 5 |
| Update frequency | Every 12 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Freemium |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.6 — better | 16.4 |
| Further details — not scored | ||
| Size | 21 MB | 101 MB |
| Age rating | 4+ | 17+ |
| Developer | Uniweld Products, Inc. | Cowboy G Industries LLC |
Customer experience
SmarTech
HVAC/R AI Pro
In-app purchases
SmarTech
No in-app purchases
HVAC/R AI Pro
- Basic Plan$9.991 Month
- Plus3 Days trial$19.991 Month









