ecobee Smart Thermostat vs CoolCalc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ecobee Smart Thermostat
Control your home's heating, cooling, and ventilation remotely with this smart thermostat app. Adjust temperature, manage schedules, and receive alerts from anywhere, anytime. Integrates energy management and utility demand response for efficient home climate control.
- Remote temperature adjustment
- Schedule management
- Vacation event updates
- System and fan settings control
- Alert notifications
- Energy management integration
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The ecobee Smart Thermostat is a WiFi enabled programmable thermostat that has a full-color LCD touch screen and easy-to-use interface. Our product integrates heating, cooling, ventilation, energy management and utility demand response. The ecobee iPhone and iPod Touch application allows you to control all your Smart Thermostats from anywhere at anytime. It looks and operates just like your ecobee Smart Thermostat at home. You can now use this application to remotely adjust the thermostat’s temperature, schedule or update a vacation event, change the system and/or fan operating settings and receive alerts. Load the application and when prompted use your existing ecobee web portal user name and password to log in.
CoolCalc
This offline toolkit for service technicians provides essential HVAC calculations, job documentation, and professional PDF reporting. It supports A2L refrigerants and prioritizes user privacy with no account or cloud storage required.
- Offline HVAC calculations
- PT Chart and Charge Check
- Duct Sizing and Airflow Calcs
- Capacitor and Refrigerant Log
- Professional PDF report generation
- A2L refrigerant support
- Privacy-focused, no account needed
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CoolCalc is an offline HVAC field kit for service technicians. Check the numbers, save the work, and turn a service visit into a clear PDF report—right on your iPhone. TOOLS FOR THE CALL • PT Chart: pressure-temperature lookup for R-410A, R-22, R-32, R-454B and more, with bubble and dew values where applicable. • Charge Check: calculate superheat and subcooling, including an optional target superheat estimate for fixed-orifice systems. • Duct Sizer 2.0: size round or rectangular ducts and review friction, velocity, and fitting losses. • Airflow and psychrometrics: quick CFM, BTU, ΔT, tons, ACH, wet-bulb, dew point, and enthalpy calculations. • Diagnostics: static pressure, capacitor checks, electrical calculations, gas-heating checks, and a manual system summary. • Refrigerant service: log charge added or recovered and check recovery cylinder fill. FROM READING TO REPORT Save supported results to a job, add photos and notes, record customer and system details, and generate a PDF service report on device. Share it through the iOS share sheet when you're ready. A2L AND FIELD REFERENCES Look up refrigerant PT data and find safety-class information, unit conversions, formulas, and A2L service reminders. Always verify readings and procedures against the equipment manufacturer's instructions and applicable codes. FREE TO START. PRO WHEN YOU NEED MORE. Common-refrigerant PT and charge checks are free. Advanced calculations and job documentation have free-use limits. Pro unlocks unlimited advanced calculations, jobs, and PDF exports, plus more photos per job and the full refrigerant reference. Choose a lifetime purchase or a subscription in the app. NO ACCOUNT REQUIRED Your job records, photos, and reports are stored on your device unless you choose to share them. Core field calculations and PDF creation work without a cellular signal. Terms of Use (EULA): https://sites.google.com/view/terms-of-use-for-coolcalc Privacy Policy: https://sites.google.com/view/privacypolicyforcoolcalc
Screenshots
Verdict
The clearest difference is rating: CoolCalc at 5.0 against ecobee Smart Thermostat's 2.8. CoolCalc also leads on update cadence (every 2 weeks vs every 4 months). ecobee Smart Thermostat's advantage is in-app purchases (none vs 3) and ratings volume (25 vs 1). On price, 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. CoolCalc sells 3 in-app purchases, starting at $4.99 per month. ecobee Smart Thermostat asks for nothing beyond the download.
CoolCalc holds the better App Store score, 5.0 against 2.8. That said, the two scores are not equally well evidenced: ecobee Smart Thermostat has 25 ratings behind it against 1, so its average is the more settled of the two.
ecobee Smart Thermostat ships an update every 4 months, CoolCalc every 2 weeks. The most recent releases landed on November 1, 2026 and October 31, 2026 respectively.
| Parameter | ecobee Smart Thermostat | CoolCalc |
|---|---|---|
| Price | Free | Free |
| Rating | 2.8 (25 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 45.3% of reviews | — |
| Number of ratings | 25 — better | 1 |
| Update frequency | Every 4 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 4.3 — better | 16.0 |
| Further details — not scored | ||
| Size | 13 MB | 30 MB |
| Age rating | 4+ | 4+ |
| Developer | ecobee Ltd. | 杰 陈 |
Customer experience
ecobee Smart Thermostat
CoolCalc
In-app purchases
ecobee Smart Thermostat
No in-app purchases
CoolCalc
- CoolCalc Pro Monthly$4.991 Month
- CoolCalc Pro Yearly3 Days trial$19.991 Year
- CoolCalc Pro Lifetime$29.99
Questions
Is ecobee Smart Thermostat free?
Is CoolCalc free?
Which has better reviews, ecobee Smart Thermostat or CoolCalc?
Do ecobee Smart Thermostat or CoolCalc have ads?
Which is updated more often, ecobee Smart Thermostat or CoolCalc?
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