SmarTech vs BluVac
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!
BluVac
Connect to compatible vacuum gauges via Bluetooth to perform detailed system evacuations. Features timed tests, decay tests, and data recording. Offers advanced reporting, multiple gauge connections, and geolocation for enhanced screenshots.
- Bluetooth gauge connection
- Timed evacuation tests
- Decay test functionality
- Detailed results viewing
- mQ Assist integration
- Pro Report feature
- Connect up to 6 gauges
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Easily connect and perform detailed system evacuations with your BluVac+ Pro, BluVac+ LTE, and BluVac+ Micro vacuum gauges via Bluetooth. With the BluVac+ Pro, you can perform timed evacuation and decay tests, set target times, and view detailed results. For BluVac+ LTE and Micro, quickly record and display essential data. The app now features mQ Assist integration for evacuation guidance, an improved interface, and geolocation tracking for enhanced screenshots. Additional upgrades include a new Pro Report feature, the ability to connect up to 6 BluVac gauges simultaneously, and the option to rename gauges by their function (e.g., Pump, Core Tool, System). Plus, the decay test will now only start once the evacuation rate hits zero.
Screenshots
Verdict
The clearest difference is rating: BluVac at 5.0 against SmarTech's 3.6. BluVac also leads on update cadence (every 2 months vs every 12 months) and review sentiment (36% vs 25%). SmarTech's advantage is ratings volume (9 vs 2). On price, ads, in-app purchases and monetization model 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. Neither carries in-app purchases, so what you see is what you pay.
BluVac holds the better App Store score, 5.0 against 3.6. Both are backed by a comparable volume of ratings — 9 and 2 respectively. Written reviews point the same way: 25% of SmarTech's written reviews are positive against 36% of BluVac's.
SmarTech ships an update every 12 months, BluVac every 2 months. The most recent releases landed on June 1, 2026 and September 9, 2026 respectively.
| Parameter | SmarTech | BluVac |
|---|---|---|
| Price | Free | Free |
| Rating | 3.6 (9 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 25.0% of reviews | 36.4% of reviews — better |
| Number of ratings | 9 — better | 2 |
| Update frequency | Every 12 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 11.0 — better |
| Further details — not scored | ||
| Size | 21 MB | 25 MB |
| Age rating | 4+ | 4+ |
| Developer | Uniweld Products, Inc. | Manifold Cloud Services Ltd. |
Customer experience
SmarTech
BluVac
In-app purchases
SmarTech
No in-app purchases
BluVac
No in-app purchases








