testo Smart

Contains adsIn-app purchases
2.8
1.45K reviews
500K+
Downloads
Content rating
PEGI 3
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image

About this app

- All in one: The testo Smart App supports you with measurements on refrigeration, air conditioning, and heating systems, as well as in ensuring the safety and quality of food and frying oil, and in monitoring indoor climate and storage conditions.
- Fast: Graphically descriptive display of measured values, e.g. as a table, for quick interpretation of results.
- Efficient: Create digital measurement reports including. photos as PDF/ CSV files on site and send them via e-mail.

The testo Smart App is compatible with the following Bluetooth®-enabled measuring instruments from Testo:
- Thermal imager testo 860i for smartphones
- All Testo Smart Probes
- Digital manifolds testo 550s/557s/558s/550i/570s and testo 550/557
- Digital refrigerant scale testo 560i
- Vacuum pump testo 565i
- Flue gas analyzer testo 300/310 II/310 II EN
- Vacuum gauge testo 552
- Clamp meter testo 770-3
- Volume flow hood testo 420
- Compact HVAC measuring instruments
- Frying oil tester testo 270 BT
- Temperature meter testo 110 Food
- Dual purpose IR and penetration thermometer testo 104-IR BT
- Data loggers 174 T BT & 174 H BT
- Online data loggers testo 160, testo 162 & testo 164 GW

Applications with the testo Smart App
Refrigeration systems, air conditioning systems and heat pumps, heating systems, indoor air quality:
- Leak test: Recording and analysis of the pressure drop curve.
- Superheat and subcooling: Automatic determination of condensation and evaporation temperature and calculation of superheat / subcooling.
- Target superheat: Automatic calculation of target superheat
- Automatic refrigerant charging by weight, by superheat, by subcooling, and by target superheat
- Vacuum measurement: Graphical progress display of the measurement with indication of start and differential value

Indoor climate monitoring:
- Indoor air quality: automatic calculation of the dew point and wet-bulb temperature
- Temperature, humidity, lux, UV, pressure, CO2: the right data logger for every application – from a single solution to an online monitoring system"

Ventilation systems:
- Volume flow: After the intuitive input of the duct cross-section, the app calculates the volume flow fully automatically.
- Diffuser measurements: simple parameterisation of the diffuser (dimensions and geometry), comparison of the volume flows of several diffusers when setting up a ventilation system, continuous and multi-point average calculation.

Heating systems:
- Flue gas measurement: Second screen function in combination with testo 300
- Measurement of gas flow and static gas pressure: Also possible parallel to the flue gas measurement (delta P)
- Measurement of flow and return temperatures (delta T)

Thermography:
- Determining Delta T on heating, refrigeration/air conditioning, and industrial systems
- Detecting hot/cold spots
- Assessing the risk of mold

Food safety:
Temperature Control Points (CP/CCP):
- Seamless documentation of measured values to fulfill HACCP specifications
- Individually definable limit values and measurement comments within the App for each measurement point
- Reporting and data export for regulatory requirements and internal quality assurance

Frying oil quality:
- Seamless documentation of measured values as well as calibration and adjustment of the measurement instrument
- Individually definable limit values and measurement comments within the App for each measurement point
- Reporting and data export for regulatory requirements and internal quality assurance
Updated on
Mar 10, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
Location, App info and performance, and Device or other IDs
This app may collect these data types
App info and performance
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

2.9
1.38K reviews
Anthony Leonard
September 12, 2024
Was great until the latest update. Was able to connect my testo 510i to to tightness test, drop the pressure to where I wanted it, and start the test. Now, you can't do that, as it pops up saying it needs to be zeroed before the test starts. And it auto starts when I reconnect to the gas. But it's at full pressure, and not where I want it start at.
1 person found this review helpful
Did you find this helpful?
Testo SE + Co.KGaA
September 20, 2024
Hello Mr Leonard, Thank you for your honest opinion. We checked and would have a proposal: You can able/unable in the configuration page of this measurement program the zeroing function, and when you unable it that there will be a small warning pop up. What do you think? Can you please help us with your answer. Your Testo App Team
Kris Lockwood
October 3, 2024
Awful with the new update!!! constantly makes you zero the pressure sensor, regardless whether you have already done it before hand. Constant babysitting menus pop up that you have to follow otherwise you cant perform the most BASIC of tasks. What was once a simplistic straight to the point app has been made infuriating by someone deciding we all need pop up instructions like we are all incapable idiots before we can use our equipment. For reference this is Testo 501i. Awful app now!
1 person found this review helpful
Did you find this helpful?
Testo SE + Co.KGaA
October 4, 2024
Hello Mr. Lockwood, We are sorry that you are not satisfied with the app at the moment. These babysitter pop-ups are intended to help users so that they are not surprised when action X cannot be performed. Would it help you if you could decide for yourself whether such pop-ups should appear or not? You can send us an e-mail to appsupport@testo.de.
Jon
April 22, 2025
kept trying to force me to update saying it would only take a few minutes. I kept declining because I'm busy working and don't see any reason for the update since my gages were working just fine. unfortunately it asks you to update the firmware every single time you do something and unfortunately I accidentally accepted while evacuating a system. Now I've been completely locked out of my equipment for the last 30 minutes, it isn't even 50% done with its update and I need to FINISH MY JOB!
Did you find this helpful?
Testo SE + Co.KGaA
April 23, 2025
Hi Jon, we understand that updates can be a bit of a nuisance, but they keep your devices running smoothly – like a service for your car. If they're skipped for a while, it can take longer to catch up. Perhaps next time, it might work better during a quiet moment after work. Thank you for your feedback and patience! Your Testo App Team

What’s new

Integration of the new testo 860i thermal imager with application-specific measurement programs for heating analysis, Delta T determination in refrigeration and air conditioning systems, mold risk assessment, and more.

Indoor climate monitoring: Automated measurement value monitoring thanks to cloud connectivity. Easy commissioning, alerting, and documentation.