Comparison

testo Smart vs Annovate

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

Annovate

Features
Read full description

Annovate lets you add voice or text annotations directly to any image or markdown/plain text file (.md or .txt). Tap to place a numbered marker, record your thoughts, and share annotated images with easily editable voice-to-text transcripts. I built Annovate to give design feedback on my phone without having to type, and to easily edit before sharing with others. With the new 2.0 version, I can now review markdown and plain text files on the go, without needing to type. The annotations save into the text as inline comments. Export your text into a new file for later review. While other annotation apps are loaded with features and are difficult to use while mobile, Annovate is optimized for quick annotations, anytime and anywhere. How It Works 1. Import any image from your photo library or files OR a markdown or plain text file (.md or .txt) 2. Tap anywhere to place a numbered annotation 3. Tap the record button to capture multiple voice notes (up to 60 seconds per note) 4. On-device speech recognition automatically transcribes your audio 5. Easily edit your transcript and listen to voice notes 6. Share your Annovate document with other users, or export as PDF if an image 7. For text-based Annovate documents, you can export your text with your annotations embedded as inline comments Use Cases - Give design feedback on mockups and wireframes - Mark up markdown files while on the go, then export and share with others - Mark up photos to document feedback for edits or issues - Annotate photos from your photo library or files - Provide critique and revision notes for any image or plain text file - Take a screen shot of a map, then annotate image for step by step direction - Take a picture of a paper checklist, then annotate image with completion checkmarks Key Features - Voice recording with automatic transcription - On-device speech recognition for complete privacy - Unlimited audio clips per annotation - Smart move mode allows for precise placement of markers - Tag annotations as alert, resolved, or question - PDF export with numbered transcript list - Native document format with AirDrop sharing - Smooth pinch-to-zoom and pan navigation Pricing All features are available in the free version, with up to 3 annotations per document. Upgrade with one-time purchases, only when you need more annotations. Basic: 10 annotations per document Pro: 99 annotations per document

Screenshots

testo Smart4 screens
Annovate4 screens

Verdict

The call

The clearest difference is iOS requirement: testo Smart at 18.0 against Annovate's 26.2. 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. testo Smart sells 5 in-app purchases, starting at $6.99 per month and Annovate sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

testo Smart ships an update every 2 months, Annovate every 5 weeks. The most recent releases landed on September 25, 2026 and June 5, 2026 respectively.

Scorecard1 real difference · 9 level
testo Smart versus Annovate: the parameters behind the verdict, then further details
Parametertesto SmartAnnovate
PriceFreeFree
Rating2.7 (167 ratings) — better—
Positive reviews16.3% of reviews—
Number of ratings167 — better—
Update frequencyEvery 2 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.0 — better26.2
Further details — not scored
Size195 MB4 MB
Age rating4+4+
DeveloperTesto SE & Co. KGaANelson Taruc

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

Annovate

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
2 purchases

Annovate

One-time2
  • Annovate Basic$0.99
  • Annovate Pro$4.99

Questions

Is testo Smart free?
testo Smart is free to download, with in-app purchases available.
Is Annovate free?
Annovate is free to download, with in-app purchases available.
Do testo Smart or Annovate have ads?
Neither testo Smart nor Annovate shows ads.
Which is updated more often, testo Smart or Annovate?
testo Smart ships an update every 2 months, and Annovate every 5 weeks. Most recently, testo Smart was updated on September 25, 2026 and Annovate on June 5, 2026.

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