Comparison

Hygrometer vs BatMeteo

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

Head to head
About

Hygrometer

This app helps you monitor and prevent mold and condensation by calculating surface humidity, not just room humidity. It provides real-time alerts based on surface temperature and outdoor weather forecasts, and advises on optimal times to ventilate your home.

Highlights
  • Surface humidity calculation
  • Mold and condensation risk alerts
  • Dynamic humidity limits based on forecast
  • Ventilation advice (driest hour)
  • HomeKit sensor integration
  • Manual data input
  • Outdoor weather data display
Features
Read full description

Mold does not grow because a room is humid. It grows on the one surface that is colder than the rest — a corner, a window reveal, the wall behind a wardrobe. The air touching that surface can sit at 97% while the middle of the room reads a comfortable 55%. Hygrometer works out what is happening on that surface, and tells you the humidity to keep the room under. WATCH A ROOM • Add the cold surface you are worried about: a corner, a window reveal, an uninsulated wall, single or double glazing • See the humidity at that surface, not just in the room • Get the limit for the room, worked out from the surface temperature and the weather outside • That limit moves with the forecast — the same wall tolerates 73% on a mild day and 41% in a cold snap THREE WAYS TO GET THE NUMBERS • A HomeKit humidity sensor, read automatically — Eve Room, Aqara, SwitchBot, Netatmo and others • Typed in from your own hygrometer, whenever you check it • Or neither: Hygrometer estimates the likely range from the outdoor conditions and how the room is used, using the EN ISO 13788 humidity classes. Shown as a range, never as a measurement of your room WARNINGS THAT ARRIVE IN TIME • Mold risk when the surface reaches 80% humidity, which is long before anything looks wet • Condensation when the surface falls below the dew point • And before either: a colder forecast tonight pulls the limit down, so the warning comes before the surface turns, not after SHOULD YOU OPEN THE WINDOW? The answer relative humidity gets backwards. Airing out only dries a room when the outdoor air carries less water in absolute terms. In winter it nearly always does, even at 90% outside. On a warm humid day it often does not, and opening a cool room makes it damper. Hygrometer compares both sides in g/m³ and names the driest hour of the day. THE OUTDOOR INSTRUMENT • Outdoor relative humidity on a 0–100% analog dial with comfort bands • Dew point, absolute humidity in g/m³, mixing ratio, pressure and conditions • 24-hour humidity chart • Home Screen and Lock Screen widgets, which fetch their own reading rather than waiting for you to open the app ALSO • Follow your location, or search any city worldwide • °C / °F throughout • Eight languages • No account, no tracking, no ads Outdoor readings come from Apple Weather. Indoor readings come from your own sensor or from you — iPhone has no humidity sensor, and this app never pretends otherwise. Weather data provided by Apple Weather.

About

BatMeteo

Features
Read full description

BatMeteo è il meteo pensato per chi ama stare all'aria aperta. Non solo temperatura e previsioni: per ogni attività all'aperto — escursioni, moto, bici, mountain bike, fotografia, corsa, golf, picnic, caccia, pesca, arrampicata e altro — BatMeteo calcola un punteggio da 0 a 100 basato su soglie meteo reali (vento, pioggia, temperatura, UV, visibilità), per dirti a colpo d'occhio se oggi è il momento giusto. FUNZIONI PRINCIPALI • Meteo in tempo reale della tua posizione e delle tue città preferite, con andamento orario e dei prossimi 10 giorni • Punteggio dedicato per ogni attività, con indicatori chiari sul perché • Mappa del mondo in Home: previsione, vento animato e perturbazioni (nuvole, pressione e frecce che mostrano come si muovono) • Allerte meteo ufficiali: l'Italia per regione e i paesi europei per zona, dai servizi MeteoAlarm • Percorsi con il meteo lungo il tragitto, non solo al punto di partenza, anche con andata e ritorno: scegli tu se tornare dalla stessa strada o ad anello, con un consiglio in base al meteo • Sentieri a piedi e per la mountain bike sulla mappa dei percorsi, con la difficoltà MTB e il fondo (la pioggia delle ultime 48 ore): le zone che ti interessano si scaricano sul telefono e funzionano anche senza rete • Parcheggio: salva dove hai lasciato l'auto, anche dal widget, e fatti portare lì a piedi • Cime di tutto il mondo sulla mappa, dalle montagne di casa ai grandi quattromila e cinquemila • Notifiche intelligenti (allerta temporali, finestra golden hour, condizioni ideali) • Widget per la schermata Home con meteo e la tua attività preferita, che si aggiorna da solo • Attività personalizzabili: crea le tue, basate sulle soglie di quella più simile • Aggiornamento dati configurabile, per risparmiare traffico e batteria • Disponibile in italiano, inglese, francese, spagnolo, tedesco, ucraino, russo e cinese semplificato • Nessun account richiesto, nessun dato venduto a terzi Un'app pensata per chi decide cosa fare in base al cielo, non il contrario. Fonti dei dati: Apple Weather, Open-Meteo, MeteoAlarm, OpenStreetMap.

Screenshots

Hygrometer4 screens
BatMeteo4 screens

Verdict

The call

The clearest difference is in-app purchases: Hygrometer at none against BatMeteo's 3. On price, ads, device support and iOS requirement 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. BatMeteo sells 3 one-off in-app purchases. Hygrometer asks for nothing beyond the download.

Scorecard1 real difference · 8 level
Hygrometer versus BatMeteo: the parameters behind the verdict, then further details
ParameterHygrometerBatMeteo
PriceFreeFree
Rating5.0 (5 ratings) — better—
Number of ratings5 — better—
Update frequency—Every 3 days
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhoneiPhone, iPad — better
Requires iOS17.017.0
Further details — not scored
Size4 MB53 MB
Age rating4+4+
DeveloperPixelated DevelopmentVALENTINO BATTISTELLI

In-app purchases

None

Hygrometer

No in-app purchases

3 purchases

BatMeteo

One-time3
  • A coffee$0.99
  • A breakfast$2.99
  • A pizza$3.99

Questions

Is Hygrometer free?
Hygrometer is free to download, with no in-app purchases.
Is BatMeteo free?
BatMeteo is free to download, with in-app purchases available.
Do Hygrometer or BatMeteo have ads?
Neither Hygrometer nor BatMeteo shows ads.

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