Comparison

testo Smart vs VexMe

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

VexMe

Features
Read full description

Tu sais ce que tu dois faire. Tu ne le fais pas. VexMe est là pour ça. Abonnement VexMe Premium requis pour utiliser l'app : 4,99 € par mois, ou 39,99 € par an avec 3 jours d'essai gratuit. Toutes les fonctions décrites ci-dessous en font partie. Tu écris ta situation en quelques lignes : ton objectif, ta vie, ce qui t'énerve chez toi. Une analyse la lit et prépare des dizaines de relances taillées pour toi. Ensuite, l'app parle toute seule. Pas de chat. Pas de conversation. Juste des phrases qui tombent au bon moment. UNE MOLETTE, SIX NIVEAUX Tu règles la pression de 0 à 100 : • Direct — on arrête de tourner autour. • Dur — ça pique. C'est le but. • Brutal — pas de politesse. Tu avances. • Extrême — dernière marche avant le vulgaire. • NO MERCY — plus de filtre. Ça jure. • INSULT ME — tu l'as demandé. Les deux derniers niveaux ne s'ouvrent qu'après ton accord explicite. Tu redescends quand tu veux. DES RELANCES, PAS DES SERMONS • Des notifications à tes horaires, ou au hasard dans une plage que tu choisis. • Un widget qui te regarde chaque fois que tu déverrouilles ton iPhone. • Des phrases qui citent ton objectif et ce qui te bloque, pas des citations de poster. • Pas deux fois la même phrase d'affilée. AVANT / APRÈS Ta photo de départ est ta photo de profil. Le jour où tu atteins ton objectif, tu appuies sur « J'ai réussi », tu prends la photo d'après, et VexMe te prépare un montage avant / après à partager. TES PHRASES SE RENOUVELLENT Quand tes phrases ont fait le tour, VexMe t'invite à mettre ton texte à jour. Tu as avancé, ton objectif a bougé : la nouvelle analyse part de là, et tes phrases tapent plus juste. TES DONNÉES RESTENT CHEZ TOI Ton texte vit sur ton téléphone. Il est envoyé pour l'analyse, jamais stocké chez nous. Tes photos ne quittent jamais ton iPhone. Pas de compte à créer, pas d'e-mail. Tu peux tout effacer depuis les Réglages. ABONNEMENT VEXME PREMIUM • Annuel : 39,99 € par an, avec 3 jours d'essai gratuit si tu y as droit. • Mensuel : 4,99 € par mois. L'abonnement se renouvelle automatiquement sauf résiliation au moins 24 heures avant la fin de la période en cours. Le paiement est débité sur ton compte Apple. Tu gères et résilies ton abonnement dans les réglages de ton compte App Store. Conditions d'utilisation : https://vexme.app/legal#terms Confidentialité : https://vexme.app/legal Réservé aux 17 ans et plus. VexMe est un outil de motivation, pas un service de santé mentale. Si tu ne vas pas bien, le 3114 répond gratuitement, 24 h sur 24.

Screenshots

testo Smart4 screens
VexMe4 screens

Verdict

The call

The clearest difference is update cadence: VexMe at daily against testo Smart's every 2 months. VexMe also leads on iOS requirement (16.4 vs 18.0). On price, ads, in-app purchases 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 and VexMe sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

testo Smart ships an update every 2 months, VexMe daily. The most recent releases landed on November 14, 2026 and November 10, 2026 respectively.

Scorecard2 real differences · 8 level
testo Smart versus VexMe: the parameters behind the verdict, then further details
Parametertesto SmartVexMe
PriceFreeFree
Rating2.7 (171 ratings) — better—
Positive reviews16.9% of reviews—
Number of ratings171 — better—
Update frequencyEvery 2 monthsDaily — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad — betteriPhone
Requires iOS18.016.4 — better
Further details — not scored
Size195 MB61 MB
Age rating4+17+
DeveloperTesto SE & Co. KGaARomain Joulia

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

VexMe

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

VexMe

Subscriptions2
  • VexMe Premium$3.991 Month
  • VexMe Premium annuel3 Days trial$34.991 Year

Questions

Is testo Smart free?
testo Smart is free to download, with in-app purchases available.
Is VexMe free?
VexMe is free to download, with in-app purchases available.
Do testo Smart or VexMe have ads?
Neither testo Smart nor VexMe shows ads.
Which is updated more often, testo Smart or VexMe?
testo Smart ships an update every 2 months, and VexMe daily. Most recently, testo Smart was updated on November 14, 2026 and VexMe on November 10, 2026.

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