Comparison

Barograph Widget Off vs Air Quality ◎

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

Head to head
About

Barograph Widget Off

Features
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Barograph turns your iPhone barometer into a clear Lock Screen dashboard for atmospheric pressure. CURRENT PRESSURE See live pressure in mbar, hPa, mmHg, inHg, or psi. Track 6-hour and 24-hour changes with trend arrows. 24-HOUR BAROGRAM A 12-bar chart shows pressure history — each bar covers 2 hours. The live bar updates while the app is open. Past bars stay fixed; when pressure keeps falling at the floor, the chart pans up so you can still see movement. LOCK SCREEN WIDGETS • Inline — pressure, delta, and trend in one line • Panel — pressure with 6h and 24h deltas • Chart — full-width barogram for the wide Lock Screen slot CALIBRATION Match the reading to a local weather station or reference value. Calibration stays free. UNITS & SETTINGS Switch pressure units anytime. Optional lightning icon when a sharp pressure drop is detected. FREE VS PREMIUM Pressure reading, trends, and calibration are always free. Lock Screen widgets and the in-app barogram include a 7-day free trial. After the trial, unlock them forever with a one-time purchase. No subscription. REQUIREMENTS Requires an iPhone with a built-in barometric sensor. PRIVACY Pressure data is stored only on your device. No account required. Note: BaroWidget shows barometric pressure for informational purposes. It is not a weather forecast or medical device.

About

Air Quality ◎

Get real-time air quality information for your city, including the main pollutant and its cause. Receive alerts for air quality changes and customize notifications based on your sensitivity profile. A widget provides at-a-glance updates without opening the app.

Highlights
  • Real-time AQI and pollutant concentration
  • Supports multiple international AQI scales
  • Weather factors explained
  • Global pollution map and city ranking
  • Customizable alerts
  • Personalized sensitivity profiles
  • Home screen widget
Features
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What you are breathing, at a glance. An index with no explanation is useless. Air Quality shows your city's level in real time, the pollutant pushing it up, the weather behind it, and one clear call: go out now, or wait until this evening. No account, no sign-up, no email address to hand over. THE INDEX, IN REAL TIME Your city's level, updated continuously, with the pollutant responsible and its concentration: PM2.5 and PM10 particulate matter, nitrogen dioxide, ozone, sulphur dioxide, carbon monoxide. When wildfire smoke drifts in, fine particles are what tell you first. YOUR COUNTRY'S OWN SCALE In the United States the app uses the AQI you already know, from 0 to 500. Travel, and it switches to the official scale of wherever you are: the European index, Canada's AQHI, the UK's DAQI, Korea's CAI, and the Japanese, Mexican, Australian and Brazilian scales. Nine scales in all, and you can force your own. THE WEATHER THAT EXPLAINS IT Wind disperses particles, heat manufactures ozone, rain washes the air. A discreet strip ties every move of the index to its cause, in one sentence. This is an air quality app, not a weather app: the weather is there to explain, never to take over the screen. MAP AND RANKING A pollution layer over the world map, monitoring stations where they exist, and a ranking of major cities so you can place your own. ALERTS THAT ACTUALLY WARN YOU A notification when the air degrades in one of your cities, and another when it is breathable again. You set the threshold, the app keeps watch. YOUR SENSITIVITY PROFILE Asthma, heart condition, young child, older adult, pregnancy, outdoor sport: tick what applies to you. The app then watches the pollutants that affect you first and warns you earlier, without ever altering the readings it shows. ON YOUR HOME SCREEN A widget shows your city's level without opening the app. YOUR DATA STAYS WITH YOU No account, no advertising profile built on your health. Your reading history is stored on your device. PREMIUM The free version gives you today's index, the map, the ranking, the widget and one tracked city. Premium adds: no ads, five-day forecasts, up to 50 cities, alerts, twelve months of history and CSV export of your readings. Monthly or yearly subscription — a seven-day free trial on the yearly plan — or a one-time lifetime purchase. Prices for your country are shown inside the app. Payment is charged to your Apple account at confirmation of purchase. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period; manage and cancel them in your Apple account settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ General terms: https://airquality.devolim.fr/en/terms.html Subscription terms: https://airquality.devolim.fr/en/subscription.html Privacy: https://airquality.devolim.fr/en/privacy.html Data: Copernicus / CAMS via Open-Meteo. Air Quality provides environmental information. It is not a medical device and does not replace the advice of a health professional.

Screenshots

Barograph Widget Off4 screens
Air Quality ◎4 screens

Verdict

The call

The clearest difference is in-app purchases: Air Quality ◎ at none against Barograph Widget Off's 1. Air Quality ◎ also leads on iOS requirement (15.0 vs 17.0). Barograph Widget Off's advantage is ads (none vs shown). On price 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. Barograph Widget Off sells 1 one-off in-app purchase. Air Quality ◎ asks for nothing beyond the download.

Scorecard3 real differences · 5 level
Barograph Widget Off versus Air Quality ◎: the parameters behind the verdict, then further details
ParameterBarograph Widget OffAir Quality ◎
PriceFreeFree
Positive reviews—100.0% of reviews
Update frequency—Every 2 months
AdsNo — betterYes
In-app purchasesYesNo — better
Monetization—Free with in-app purchases
DevicesiPhone, iPadiPhone, iPod
Requires iOS17.015.0 — better
Further details — not scored
Size1 MB75 MB
Age rating4+12+
DeveloperIvan SekretariukDevolim

In-app purchases

1 purchases

Barograph Widget Off

One-time1
  • Lifetime Unlock$4.99
None

Air Quality ◎

No in-app purchases

Questions

Is Barograph Widget Off free?
Barograph Widget Off is free to download, with in-app purchases available.
Is Air Quality ◎ free?
Air Quality ◎ is free to download, with no in-app purchases.
Do Barograph Widget Off or Air Quality ◎ have ads?
Air Quality ◎ shows ads; Barograph Widget Off does not.

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