YJACK VIEW vs FAN
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
YJACK VIEW
This app provides a comprehensive HVAC/R diagnostic solution by integrating with specialized hardware. It allows users to view live data, create and share service reports, and perform detailed system analysis for pressure, temperature, evacuation, and more.
- Live data monitoring
- Customizable PDF service reports
- Enhanced datalogging
- Pressure and temperature analysis
- Evacuation monitoring
- Psychrometric analysis
- Electrical readings
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YJACK VIEW® provides seamless integration with YJACK® and TITAN® devices offering a complete HVAC/R diagnostic solution (hardware purchase required). Supported Hardware: TITANMAX® Digital Manifold YJACK PATH® Range Extender YJACK® Temperature Clamp & Strap YJACK DEW® Psychrometer YJACK PRESS® Pressure Gauge YJACK VAC® Vacuum Gauge YJACK AMP® Current Probe YJACK MANO® Manometer YJACK FLOW® Anemometer P51-870 TITAN® Digital Manifold 68864 Wireless Refrigerant Scale 6860x Combustion Analyzer Receive and analyze live data including pressures, temperatures, vacuum level, psychrometric data, duct air flow and speed, duct pressure drops, fuel pressure settings, weight readings, and electrical current. CREATE/MANAGE/SHARE SERVICE REPORTS Create customizable PDF reports of system measurements and service information while storing past jobs and reports. The user profile feature stores user information that is automatically generated in the header of each report. ENHANCED DATALOGGING Record data from one or all current session types as desired. Choose from a variety of sampling rates depending on user need. Live updates to selected devices, units, elevation, refrigerant selection appended to existing data logs. Start and stop datalogging at will, save for later, or share via email for remote analysis. PRESSURE / TEMPERATURE View System Pressure and Temperature data on up to 4 systems at once. Select refrigerants for calculating system properties including saturation temperatures and system superheat/subcooling. Manipulate data view types, including large number format, analog gauge (pressure only) or line graph. STATIC PRESSURE Select and record pressure drops across multiple different locations like the filter, the coil, external static pressures, and gas pressure readings to upload into a report for the customer all in one session. EVACUATION Monitor system vacuum as reported by a TITAN® digital manifold, wired vacuum sensor or the YJACK VAC® Wireless Vacuum Gauge. Adjustable Vacuum Pressure Target and Hold timer ensures all refrigerant, moisture, and non-condensable gases are removed during evacuation. LEAK TEST Monitor pressure changes during pressurized leak testing to verify that system is tight. PSYCHROMETRICS Analyze psychrometric data on up to 4 systems at once. Ensure maximum home comfort through wireless supply and return relative humidity, dry bulb, wet bulb, dew point temperatures and enthalpy calculations. Compare system rated capacity to actual output for overall system efficiency. CHARGING & RECOVERY Display scale readings from the Wireless Charging Scale to accurately charge systems or determine system charge amount through recovery. View readings from your Wireless Refrigerant Scale with simultaneous gross weight and weight change fields. ELECTRICAL Electrical session displays readings from YJACK AMP® Wireless Current Probe while monitoring AC current and inrush. These readings are used for calculating power draw and EER. ANEMOMETER Anemometer session displays readings from YJACK FLOW® Wireless Anemometer Probe. Quick one-line verification from duct-to-duct comparison or full system calculations using AHRI40 standard for air measurement, to compare installed system airflow to published standard. AVAILABLE DEVICES Monitor the data and battery life of your devices. Create a perimeter of devices by placing YJACK PATH® devices periodically around the work area, boosting the signal of all nearby devices. COMBUSTION Capture results from your combustion analyzer and include the data in your job report.
FAN
This app serves as a digital installation manual for HVAC Bacnet controls. It provides comprehensive guidance for technicians and installers working with these systems. Access detailed information and references directly on your device.
- HVAC Bacnet Controls Installation Manual
- Digital Reference Guide
- Technical Documentation
- Installer Support
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HVAC Bacnet Controls Installation Manual
Screenshots
Verdict
The clearest difference is review sentiment: FAN at 100% against YJACK VIEW's 25%. FAN also leads on rating (5.0 vs 2.8) and iOS requirement (11.0 vs 14.0). YJACK VIEW's advantage is ratings volume (18 vs 6). On price, update cadence, ads and in-app purchases 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.
FAN holds the better App Store score, 5.0 against 2.8. Both are backed by a comparable volume of ratings — 18 and 6 respectively. Written reviews point the same way: 25% of YJACK VIEW's written reviews are positive against 100% of FAN's.
Both ship on a similar rhythm, roughly every 5 months. The most recent releases landed on September 24, 2026 and July 7, 2026 respectively.
| Parameter | YJACK VIEW | FAN |
|---|---|---|
| Price | Free | Free |
| Rating | 2.8 (18 ratings) | 5.0 (6 ratings) — better |
| Positive reviews | 25.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 18 — better | 6 |
| Update frequency | Every 5 months | Every 5 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 19 MB | 81 MB |
| Age rating | 4+ | 4+ |
| Developer | YELLOW JACKET | Johnson Controls, Inc. |
Customer experience
YJACK VIEW
FAN
In-app purchases
YJACK VIEW
No in-app purchases
FAN
No in-app purchases









