Comparison

SmarTech vs Uniweld Fusion

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

Uniweld Fusion

Features
Read full description

The SmarTech Fusion app is built for HVAC professionals who need fast, accurate, and connected system diagnostics in the field. Designed to work seamlessly with SmarTech Fusion wireless tools, the app delivers real-time system data directly to your mobile device, helping you troubleshoot, verify, and document performance with confidence. Connect to a full range of wireless instruments including pressure gauges, temperature clamps, psychrometer probes, manometer probes, vacuum gauge, ambient temperature probe, and Bluetooth scale. Monitor live pressure, temperature, vacuum, and weight readings while performing service, installation, or maintenance tasks. The app supports complete system diagnostics on both the refrigerant and air side. Perform refrigerant-side analysis with automatic superheat and subcooling calculations. Run nitrogen pressure tests for leak detection and execute vacuum tests, including evacuation and vacuum rise verification. On the air side, measure return and supply conditions with dry bulb and wet bulb readings, along with calculated enthalpy, dew point, and relative humidity. SmarTech Fusion also enables static pressure measurements and system performance analysis, giving technicians a full picture of system operation in one place. The intuitive interface allows for quick setup, reliable wireless connectivity, and easy navigation between tools and measurements. Generate detailed service reports directly from the app, including system data and optional photos. Export reports as PDFs to share with customers, document job performance, or maintain service records. This streamlines workflow and adds professionalism to every job. Whether you're commissioning new systems, performing maintenance, or diagnosing issues, SmarTech Fusion brings all your measurements, calculations, and reporting into a single, efficient platform—helping you work smarter and complete jobs faster.

Screenshots

SmarTech3 screens
Uniweld Fusion4 screens

Verdict

The call

The clearest difference is update cadence: Uniweld Fusion at monthly against SmarTech's every 12 months. On price, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

SmarTech ships an update every 12 months, Uniweld Fusion monthly. The most recent releases landed on October 1, 2026 and October 15, 2026 respectively.

Scorecard1 real difference · 9 level
SmarTech versus Uniweld Fusion: the parameters behind the verdict, then further details
ParameterSmarTechUniweld Fusion
PriceFreeFree
Rating3.6 (9 ratings) — better—
Positive reviews25.0% of reviews—
Number of ratings9 — better—
Update frequencyEvery 12 monthsMonthly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.615.6
Further details — not scored
Size21 MB103 MB
Age rating4+4+
DeveloperUniweld Products, Inc.Kane Asia Inc.

In-app purchases

None

SmarTech

No in-app purchases

None

Uniweld Fusion

No in-app purchases

Questions

Is SmarTech free?
SmarTech is free to download, with no in-app purchases.
Is Uniweld Fusion free?
Uniweld Fusion is free to download, with no in-app purchases.
Do SmarTech or Uniweld Fusion have ads?
Neither SmarTech nor Uniweld Fusion shows ads.
Which is updated more often, SmarTech or Uniweld Fusion?
SmarTech ships an update every 12 months, and Uniweld Fusion monthly. Most recently, SmarTech was updated on October 1, 2026 and Uniweld Fusion on October 15, 2026.

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