Comparison

testo Smart vs Prometheus Mobile for Maximo

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

testo Smart

This app supports measurements for refrigeration, HVAC, and heating systems. It also aids in food safety, frying oil quality, and indoor climate monitoring. Quickly interpret data, create digital reports with photos, and send them via email.

Highlights
  • All-in-one system measurements
  • Graphical display of measured values
  • Digital PDF/CSV measurement reports
  • Email report sharing
  • Leak test analysis
  • Automatic refrigerant charging
  • Indoor air quality monitoring
Features
Read full description

- 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 --------------------------------------------------------- Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.testo.com/en/company/privacy-policy-app

About

Prometheus Mobile for Maximo

Enhance IBM Maximo functionality in the field with a mobile solution that supports online and offline data collection. Improve accuracy and efficiency by bringing asset management capabilities directly to your maintenance teams.

Highlights
  • Offline data collection
  • Real-time data synchronization
  • Interactive maps
  • Dynamic data forms
  • Integration with enterprise systems
  • Mobile-first responsive design
Features
Read full description

Maintenance and asset management work doesn’t always take place where there’s connectivity or a computer. Today’s asset-intensive businesses need flexible mobile technologies to expand and simplify the functionality of IBM Maximo and bring it out into the field. Improve time-on-tools/wrench time, data accuracy, and derive more value from your maintenance resources by collecting data at the source, in real-time with DataSplice, while preserving Maximo as your single source of truth. DataSplice (now known as Prometheus Group’s Mobile for Maximo solution): • Is a single mobile platform for Maximo, Esri, and other enterprise systems. • Is built with scalable technology that readily integrates into existing operations, and can be extended as your needs evolve • Supports online, offline and mixed mode multi-use capabilities • Collects accurate data in the field and increases data reliability • Incorporates interactive maps (that function fully online or offline) into enterprise business processes • Uses modern HTML5 mapping techniques, allowing users to interact with millions of GIS features in remote areas where reliable connectivity is not available • Is built with a mobile-first responsive design • Works with Prometheus Mobile for Maximo Forms; a complete dynamic data form, perfect for condition-based tasks, such as inspections. This full-featured system, which may be used with or without Maximo, can quickly be configured to meet regulatory, compliance, and operational requirements through a form-building toolset • Integrates with Commercial-off-the-shelf solutions (COTS) for mobile work orders, inventory, planning, requests, reports, and forms The Prometheus Mobile for Maximo Server uses a plug-in architecture to provide integration into a range of external systems including: • IBM Maximo (through the MBO interface) • Oracle & SQL Server databases (through Ado.NET database connections) • ESRI web services (through REST API endpoints) • LDAP & Active Directory systems • Network file systems Our server combines data from across these sources making them available to end users within a single customer application.

Screenshots

testo Smart4 screens
Prometheus Mobile for Maximo1 screens

Verdict

The call

testo Smart and Prometheus Mobile for Maximo both sit at 2.7 stars, but that hides the real split: 75% of Prometheus Mobile for Maximo's written reviews are positive against 16% of testo Smart's. Prometheus Mobile for Maximo also leads on in-app purchases (none vs 5) and iOS requirement (14.0 vs 18.0). testo Smart's advantage is ratings volume (167 vs 9) and update cadence (every 2 months vs every 5 months). On price, rating, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. testo Smart sells 5 in-app purchases, starting at $6.99 per month. Prometheus Mobile for Maximo asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 2.7 for testo Smart against 2.8 for Prometheus Mobile for Maximo. That said, the two scores are not equally well evidenced: testo Smart has 167 ratings behind it against 9, so its average is the more settled of the two. Written reviews are what separate them: 16% of testo Smart's written reviews are positive against 75% of Prometheus Mobile for Maximo's.

UpkeepUpdate frequency

testo Smart ships an update every 2 months, Prometheus Mobile for Maximo every 5 months. The most recent releases landed on October 13, 2026 and September 27, 2026 respectively.

Scorecard6 real differences · 4 level
testo Smart versus Prometheus Mobile for Maximo: the parameters behind the verdict, then further details
Parametertesto SmartPrometheus Mobile for Maximo
PriceFreeFree
Rating2.7 (167 ratings)2.8 (9 ratings) — better
Positive reviews16.3% of reviews75.0% of reviews — better
Number of ratings167 — better9
Update frequencyEvery 2 months — betterEvery 5 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.014.0 — better
Further details — not scored
Size195 MB12 MB
Age rating4+4+
DeveloperTesto SE & Co. KGaAPROMETHEUS GROUP, INC.

Customer experience

testo Smart

All ratings167 ratings
Positive35.9%
Neutral13.2%
Negative50.9%
Written reviews153 reviews
Positive16.3%
Neutral17.6%
Negative66.0%

Prometheus Mobile for Maximo

All ratings9 ratings
Positive44.4%
Neutral0.0%
Negative55.6%
Written reviews4 reviews
Positive75.0%
Neutral0.0%
Negative25.0%

Bugs and requests

testo Smart

Reported bugs

5 issues
  • App won't connect to devices
  • Compatibility issues with newer iOS versions
  • Frequent crashes and freezes
  • Inability to save favorite refrigerants
  • Measurement data not displaying properly

Requested features

7 requests
  • Add option to toggle Bluetooth discovery
  • Improve Bluetooth range
  • Add ability to customize colors and graphs
  • Improve data export functionality
  • Add option to name sensors
Show 2 more
  • Improve multi-probe support
  • Integrate more features from physical devices

Prometheus Mobile for Maximo

Not enough reviews yet to summarise bugs or requests.

In-app purchases

5 purchases

testo Smart

Subscriptions4
  • Multi-site measurement7 Days trial$6.991 Month
  • Air balancing7 Days trial$9.991 Month
  • Multi-site measurement$69.901 Year
Show 1 more
  • Air balancing$99.901 Year
One-time1
  • Logging digital manifold$44.99
None

Prometheus Mobile for Maximo

No in-app purchases

Questions

Is testo Smart free?
testo Smart is free to download, with in-app purchases available.
Is Prometheus Mobile for Maximo free?
Prometheus Mobile for Maximo is free to download, with no in-app purchases.
Which has better reviews, testo Smart or Prometheus Mobile for Maximo?
Prometheus Mobile for Maximo is rated higher. testo Smart averages 2.7 out of 5 from 167 ratings, while Prometheus Mobile for Maximo averages 2.8 from 9 ratings.
Do testo Smart or Prometheus Mobile for Maximo have ads?
Neither testo Smart nor Prometheus Mobile for Maximo shows ads.
Which is updated more often, testo Smart or Prometheus Mobile for Maximo?
testo Smart ships an update every 2 months, and Prometheus Mobile for Maximo every 5 months. Most recently, testo Smart was updated on October 13, 2026 and Prometheus Mobile for Maximo on September 27, 2026.

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