8 Best AQI Monitoring Apps for Indian Cities in 2026

Every winter, the same question trends across Indian social media: “which AQI app is actually accurate?” The honest answer is that no single app is right for everyone — a Delhi resident checking hourly stubble-smoke spikes needs something different from a Bengaluru parent tracking pollen and PM2.5 before a child’s outdoor sports day, or a Kolkata commuter deciding whether today calls for a mask.

Rather than crown one winner, this guide compares the apps that actually matter for Indian conditions in 2026 — government-run, India-built, and globally established — and tells you which one fits which situation.

How We Evaluated These Apps

Before ranking anything, it helps to know what actually separates a good AQI app from a mediocre one in the Indian context:

1. Data source credibility — does it rely on CPCB/state monitoring stations, its own calibrated sensor network, or purely modelled estimates?
2. India-specific coverage — how many Indian cities and localities does it actually cover, beyond the six or seven usual metros?
3. Update frequency — hourly, sub-hourly, or stale for half a day?
4. Forecast quality — a same-day number is useful; a 24–72 hour forecast is what actually lets you plan around a pollution spike.
5. Extra health context — dominant pollutant, health advisories, and (for some apps) pollen or UV data that matters for allergy and asthma sufferers.
6. Cost and ads — many of the best options here are free or largely so, which matters for a tool people are expected to check daily.

What to Check Before You Download Any AQI App

Beyond the features list, a few practical things separate an app you’ll actually keep from one you’ll delete within a week:

• Location permissions. Most accurate AQI apps need precise (not approximate) location access to serve a hyperlocal reading rather than a citywide default. Check what the app requests and whether it lets you set a fixed home/work location instead of tracking you continuously.
• Offline or cached data. A handful of apps cache your last reading so you’re not staring at a blank screen with patchy network connectivity — genuinely useful during monsoon season or in areas with inconsistent mobile data.
• Ad load. Several free AQI apps carry heavy ad placements, particularly on the historical-data and forecast screens. If you’re checking daily, this matters more than it sounds.
• Data export or widget support. If you want to track your own household’s exposure over a season (useful if you or a family member has a respiratory condition), look for apps that let you export readings or at least maintain a visible history beyond seven days.
• Notification granularity. The best apps let you set a custom AQI threshold for alerts (for example, “notify me above 200”) rather than a fixed, one-size-fits-all alert level.

Widgets and Notifications: How the Top Apps Compare

If you check AQI the way most people check weather — a glance at a home-screen widget rather than opening the app — this comparison matters more than raw data accuracy:

• IQAir AirVisual and AQI.in both offer clean, colour-coded home-screen widgets with the current reading and dominant pollutant visible at a glance.
• Sameer has more limited widget support, reflecting its utilitarian, data-first design philosophy.
• AccuWeather integrates the AQI reading into its existing weather widget, so you get both without adding a second one to your home screen.
• Ambee supports threshold-based push alerts tuned specifically for pollen and allergy triggers, not just overall AQI bands.
• Windy.com is map-first and isn’t really built around a glance-and-go widget experience — it rewards a few minutes of active exploration instead.

At a Glance: Comparison Table

App	Best For	Data Source	India Coverage	Forecast	Cost
Sameer (CPCB)	Official government data	CPCB monitoring stations	Nationwide, station-based	Limited	Free
IQAir AirVisual	Global comparisons, historical trends	Monitors + validated model	Strong in metros	Yes, multi-day	Free / Pro
AQI.in	Hyperlocal India dashboards	Blended monitor + sensor network	Very strong across India	Yes	Free
SAFAR-Air	Scientific forecasting	IITM research network	Delhi, Mumbai, Pune, Ahmedabad	Yes, detailed	Free
AccuWeather	One app for weather + air	Plume Labs air-quality model	Strong globally, decent in India	Yes	Free / Pro
Ambee: Air Quality & Pollen	Allergy-sensitive households	Proprietary hyperlocal sensor network	Good in major cities	Yes	Free
Windy.com	Visualising incoming pollution/smoke	Multiple model + satellite layers	Global, map-based	Yes, animated	Free
Google Maps / Pixel Weather	Casual, no-extra-app users	BreezoMeter (Google-owned) data	Broad but less India-granular	Basic	Free

1. Sameer (CPCB) — The Official Government App

Sameer is the Central Pollution Control Board’s own app, and it’s the closest thing India has to a ground-truth AQI source. It pulls directly from the government’s continuous ambient air quality monitoring stations rather than a third-party model, which makes it the reference point every other app is implicitly compared against.

Strengths: Direct government data, no modelling guesswork, credible for anyone who wants the same numbers used in official health advisories and GRAP decisions in Delhi-NCR.

Limitations: Coverage depends entirely on where physical monitoring stations exist, so smaller towns and specific neighbourhoods may only get the nearest city-level station rather than a hyperlocal reading. The interface is also more utilitarian than most commercial apps.

Best for: Anyone who wants the authoritative number, especially useful to cross-check a commercial app’s reading when it looks unusually high or low. For the details of exactly how this number is built, see our guide on how AQI is calculated in India.

2. IQAir AirVisual — Best for Global Context and Historical Data

IQAir runs one of the largest independent air quality monitor networks in the world and has invested heavily in India-specific coverage, including in cities that regularly top global pollution rankings. Its app pairs current readings with genuinely useful historical charts, letting you see how this week compares to last month or last year.

Strengths: Strong multi-day forecasts, clean visualisation of PM2.5 trends, and useful global-ranking context if you’re comparing Indian cities against international benchmarks.

Limitations: Some advanced historical and comparison features sit behind a paid tier.

Best for: Data-minded users who want to track long-term trends, or anyone comparing conditions across multiple Indian cities — which pairs well with our roundup of India’s most polluted cities.

3. AQI.in — Best for Hyperlocal Indian Coverage

Built specifically around Indian air quality data, AQI.in has grown into one of the most granular dashboards for Indian localities — often showing multiple monitoring points within a single large city rather than one blended average. That granularity matters enormously in sprawling cities like Delhi, where air quality can vary sharply between a green South Delhi neighbourhood and a traffic-heavy corridor in the east.

Strengths: Deep India-specific city and locality coverage, easy-to-read city rankings, and dedicated pages that track things like stubble-burning-linked spikes during the North Indian winter.

Limitations: As with any blended data source, cross-check unusually extreme readings against the CPCB dashboard.

Best for: Residents of large Indian metros who want a reading more specific than a single city-wide number.

4. SAFAR-Air — Best for Scientific Forecasting

Run by the Indian Institute of Tropical Meteorology, SAFAR (System of Air Quality and Weather Forecasting And Research) was purpose-built to forecast — not just report — air quality for Delhi, Mumbai, Pune, and Ahmedabad. It’s the system behind many of the “AQI expected to worsen tomorrow” advisories you see referenced in Indian news coverage during winter.

Strengths: Genuine forecasting model (not just current conditions), backed by a dedicated meteorological research programme, and includes useful extras like UV index in some city dashboards.

Limitations: Coverage is limited to its four core metro areas rather than nationwide.

Best for: Delhi, Mumbai, Pune, and Ahmedabad residents who want to plan a day or two ahead rather than just check the current reading — especially useful for understanding why Delhi’s AQI spikes each winter before it happens.

5. AccuWeather — Best for a Single Weather-Plus-Air App

Since acquiring air-quality analytics company Plume Labs, AccuWeather has folded air quality directly into its mainstream weather app, so users checking tomorrow’s forecast automatically see an air quality index alongside temperature and rain.

Strengths: Convenience — one app instead of two, decent forecast integration, and a familiar interface for people who already use AccuWeather for weather.

Limitations: Less India-specific granularity than dedicated Indian AQI apps; best treated as a general-purpose option rather than a specialist tool.

Best for: People who’d rather not install a separate, single-purpose AQI app.

6. Ambee: Air Quality & Pollen — Best for Allergy-Sensitive Households

Ambee, an India-founded environmental intelligence company, built its consumer app around hyperlocal readings plus a feature most AQI apps skip entirely: pollen tracking. For households managing asthma or seasonal allergies alongside general pollution exposure, that combination is genuinely useful.

Strengths: Hyperlocal proprietary sensor data, pollen index alongside AQI, and a health-first framing of the numbers.

Limitations: Coverage is strongest in major cities and thinner in smaller towns.

Best for: Families managing asthma, allergies, or other respiratory sensitivities — a group we cover in more depth in our guide on how air pollution affects children’s health.

7. Windy.com — Best for Seeing Pollution Before It Arrives

Windy isn’t a typical AQI app — it’s a weather visualisation platform with a pollution overlay that lets you watch particulate matter and smoke plumes move across a map in animated, hour-by-hour steps. For North Indian residents, this is the tool that actually shows crop-residue smoke drifting in from Punjab and Haryana before it shows up in your local reading.

Strengths: Unmatched for visualising regional pollution transport and incoming weather systems together — genuinely useful for understanding why an otherwise calm day suddenly turns hazy.

Limitations: Not designed as a quick daily-check app; better used as a supplementary, occasional tool.

Best for: Understanding the “why” behind a spike, particularly during stubble-burning season — a pattern we break down fully in our guide on how weather patterns trap pollution in North India.

8. Google Maps / Pixel Weather — Best for Zero-Extra-Effort Users

Since Google’s acquisition of BreezoMeter, air quality data now appears directly inside Google Maps and Pixel devices’ weather features, without needing a separate download. It’s basic, but it’s already on your phone.

Strengths: Zero setup, integrated into an app most people already check daily for navigation or weather.

Limitations: Less depth, fewer India-specific localities, no dedicated forecast history.

Best for: Casual users who want a glance-and-go number without adding another app to their phone.

Which App Should You Actually Use? By City

• Delhi-NCR: Pair Sameer or AQI.in for hyperlocal readings with SAFAR-Air for forecasting ahead of GRAP-triggering spikes.
• Mumbai and Pune: SAFAR-Air is purpose-built for these cities; IQAir AirVisual is a strong secondary check for historical trend data.
• Bengaluru, Chennai, Hyderabad: AQI.in and IQAir AirVisual currently offer the most granular locality-level coverage outside the SAFAR metros.
• Kolkata and Eastern India: IQAir AirVisual and AQI.in both maintain reasonable station coverage; cross-check against Sameer during high-pollution weeks.
• Tier-2 and Tier-3 towns: Coverage thins out everywhere here — Sameer (for the nearest official station) plus AQI.in’s modelled estimates together give the most balanced picture.

Red Flags: Signs an AQI App Might Not Be Reliable

Not every app in an app-store search result deserves a place on your phone. Watch for these warning signs:

• No disclosed data source. A trustworthy app tells you, somewhere in its about page or settings, whether it uses government monitors, its own sensors, or a blended model. If you can’t find this information anywhere, treat the numbers cautiously.
• Numbers that never seem to update. If the timestamp is suspiciously always “just now” regardless of when you check, or never changes at all, the app may be caching or fabricating a static value rather than pulling live data.
• No stated methodology for smaller towns. Apps that claim precise, confident readings for towns with no known monitoring infrastructure are likely extrapolating heavily — useful as a rough guide, but not something to treat as exact.
• Inconsistent scale labelling. If an app doesn’t clearly state whether it’s showing the India NAQI scale or the US AQI scale, you can’t meaningfully compare its number to a second app or to official advisories.
• Abandoned development. Check the app store’s “last updated” date. Air quality monitoring networks and calibration standards evolve; an app that hasn’t been updated in over a year may be pulling from a discontinued or degraded data feed.

Matching an App to Your Household’s Needs

A quick way to decide, if the list above feels like too many options:

• If you just want the official truth: Sameer.
• If you want the most granular reading for your exact neighbourhood: AQI.in.
• If someone in your household has asthma, allergies, or a respiratory condition: Ambee, alongside our guide on how air pollution affects children’s health.
• If you live in Delhi, Mumbai, Pune, or Ahmedabad and want to plan a day ahead: SAFAR-Air.
• If you want to understand why a spike is happening, not just that it is: Windy.com, paired with our explainer on how weather patterns trap pollution in North India.
• If you want one app for weather and air quality together: AccuWeather.
• If you want zero extra setup: Google Maps or Pixel Weather.

A Note on Accuracy: Why No App Is “The Most Accurate”

It’s tempting to search for a single “most accurate AQI app,” but accuracy depends on what you’re measuring against. A monitor-based app is accurate for its station’s exact location; a modelled app trades some precision for coverage in places without a physical monitor nearby. If you want to understand the mechanics behind why apps can legitimately disagree on the same city, our companion guide on how to read a real-time AQI app correctly walks through exactly that.

A Word on Location Data and Privacy

Because a genuinely useful AQI reading depends on precise location, most of these apps will ask for location permissions well beyond what a typical utility app needs. That’s a reasonable trade-off for accuracy, but it’s worth being deliberate about it: use “while using the app” permission rather than “always,” check whether the app lets you manually pin a home location instead of continuous tracking, and periodically review location permissions for any app you’ve had installed for more than a season. None of the apps covered here are unusual in this regard, but air quality apps as a category do request more granular location access than most people expect.

Apps We Considered but Left Off This List

A few other names come up often in AQI app searches and are worth a brief mention. Older India-specific apps built around now-defunct sensor networks were excluded once their data feeds stopped updating reliably. Standalone consumer apps from air-purifier and air-quality-hardware brands were also left off, since their AQI features are generally designed to complement their own device rather than serve as an independent, general-purpose monitoring tool — useful if you already own that hardware, less so as a first recommendation. If you’re evaluating a lesser-known app not covered here, run it through the “what to check before you download” criteria above before trusting its numbers for anything beyond casual reference.

Frequently Asked Questions

Is the government’s Sameer app more accurate than commercial apps? It’s more authoritative, since it comes directly from official monitoring stations without modelling in between — but it isn’t necessarily more granular for your exact street if the nearest station is several kilometres away.

Which app is best for tracking stubble-burning smoke specifically? Windy.com’s animated pollution-transport layer is the best tool for visually tracking incoming smoke, while AQI.in and SAFAR-Air are better for the resulting local PM2.5 numbers once it arrives.

Do I need more than one AQI app? Most people don’t, but pairing one hyperlocal app (AQI.in or Sameer) with one forecasting app (SAFAR-Air, where available) covers both “what’s happening now” and “what to expect tomorrow” — the two questions people actually ask.

Are free AQI apps reliable, or do I need a paid one? For daily decisions, free tiers of the apps above are generally sufficient. Paid tiers mostly add deeper historical data, extended forecasts, and fewer ads rather than fundamentally different accuracy.

Why do some apps not cover my town at all? India’s monitoring station network, while expanding, is still concentrated in larger cities. Apps relying purely on official stations will show gaps in smaller towns, while modelled apps attempt to estimate coverage but with less precision.

Can these apps replace an indoor air quality monitor at home? No — every app on this list measures or models outdoor ambient air. Your indoor air quality depends on ventilation, indoor sources like cooking or incense, and how well-sealed your home is against outdoor pollution, none of which an outdoor-facing app can see.

Do AQI apps account for pollution from sources like generators and construction equipment near me? Generally not at an individual-source level. City and locality readings reflect the overall ambient mix, so a poorly maintained diesel generator or an active construction site nearby can push your immediate exposure higher than even a hyperlocal app shows, since these are extremely localised sources rather than city-wide contributors.

Should I switch apps every winter when pollution gets worse? Not necessarily — but winter is a good time to double-check that your chosen app has recently updated data feeds, since usage (and scrutiny) spikes seasonally, and it’s when data quality issues tend to surface.

The Bottom Line

There’s no single “best” AQI app for all of India — there’s a best app for your city, your household’s health needs, and how far ahead you like to plan. Government apps like Sameer anchor you to the official truth, India-built platforms like AQI.in give you street-level granularity, SAFAR-Air tells you what’s coming before it arrives in the four metros it covers, and specialist tools like Windy and Ambee fill in the gaps for pollution transport and allergy-specific tracking, respectively. For most households, running one hyperlocal app alongside an occasional government cross-check is the most practical setup for 2026.