Airly vs Stratus Cloud Journal
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Airly
Monitor real-time air quality in your location with a vast sensor network. Get reliable pollution data, forecasts, and notifications about exceeded standards. Plan your activities based on the air you breathe.
- Real-time air quality monitoring
- Largest sensor network in Poland
- WHO standard compliance
- Next-day air quality forecast
- Push notifications for pollution alerts
- Home and work place sensor favorites
- Widgets for quick access
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Airly - Breathe consciously! Airly gives you the ability to check the real-time air quality in your current location. Thanks to the largest network of sensors in Poland, the app presents reliable data on air pollution in a transparent and intuitive way, including data and calculations of exceeded standards in accordance with the latest guidelines of the World Health Organization (WHO). Check what air you are breathing and plan activities for the next day thanks to the unique and only forecast in Poland that predicts the air quality for the next day with 96% efficiency. The Airly app allows you to: - air quality monitoring with 40 000 sensors and official stations located around the world, - real-time controlling of measurements: PM1, PM2.5, PM10, gases, temperature, pressure, air humidity and wind strength and direction, - adding sensors in locations important to the user to Favorites, in order to find important places like home or work place faster, - receiving "push" notifications about exceeded air pollution standards in accordance with the user's preferences, - quick access to information thanks to widgets to be installed on the phone. According to the WHO, 99% of the world's population breathes polluted air and 2.4 billion people are exposed to dangerous levels of household air pollution. Air pollution causes 7 million people to die prematurely every year due to exposure to pollution. Air quality is a topic that is worth being interested in and monitoring the level of pollution in the place of residence. Download the Airly app and check what you breathe! Follow us on social media: https://www.facebook.com/airlyorg/ https://www.linkedin.com/company/airlyorg/ Contact Us: https://airly.org/pl/contact/
Stratus Cloud Journal
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Look up. Stratus turns every glance at the sky into a personal cloud archive — from towering cumulonimbus on a stormy afternoon to delicate cirrus filaments at 40,000 feet. No account. No internet. Just you and the sky. — KEY FEATURES — • Field Log — Record unlimited cloud sightings with date, cloud type, location label, sky color (6 options), and freeform notes. Swipe to delete entries you no longer need. • 10-Cloud Reference Catalog — Browse all 10 standard cloud genera: cumulus, cirrus, stratus, cumulonimbus, altocumulus, altostratus, cirrostratus, cirrocumulus, nimbostratus, and stratocumulus. Each entry shows altitude range, cloud family, and a practical weather hint. • Family Filter — Narrow the catalog to just the Cumulus, Cirrus, Alto, or Stratus family with a single tap on the filter chips. • Cloud Detail — Tap any catalog entry for a full-screen profile: altitude, family badge, and the weather pattern it typically signals. • Atlas — A monthly calendar density grid shades every day by how many clouds you logged. Navigate backward and forward through months to spot your most active spotting periods at a glance. • Sighting Detail — Tap any log entry to review the full observation: date, location, sky color, your notes, and the matched cloud profile side by side. • Offline First — Everything works without a network connection. Your data stays on your device — no sync, no tracking, no ads. • Ready on First Launch — 15 sample sightings are pre-loaded so you can explore the app immediately and see exactly how entries look before adding your own. Start your sky journal today. The next interesting cloud is already forming overhead. — Stratus Cloud Journal PREMIUM — A Premium subscription unlocks the complete Stratus experience: unlimited cloud sightings and field notes, the full ten-genera reference atlas, your monthly density atlas, and an entirely offline, ad-free environment — everything you need to keep a faithful record of the sky. Subscription options: • Weekly — $9.99 / week • Yearly — $49.99 / year (includes a 3-day free trial) Payment is charged to your Apple Account at confirmation of purchase. Subscriptions renew automatically unless turned off at least 24 hours before the end of the current period. Your account is charged for renewal within 24 hours prior to the end of the period. Manage or cancel anytime in your Apple Account settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://pnkl26.web.app/privacy-policy
Screenshots
Verdict
The clearest difference is in-app purchases: Airly at none against Stratus Cloud Journal's 2. Airly also leads on device support (3 vs 1) and iOS requirement (14.0 vs 17.0). Stratus Cloud Journal's advantage is update cadence (every 8 days vs every 5 weeks). On price and ads 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
Both are free to download. Stratus Cloud Journal sells 2 in-app purchases, starting at $9.99 per 7 days. Airly asks for nothing beyond the download.
Airly ships an update every 5 weeks, Stratus Cloud Journal every 8 days. The most recent releases landed on October 20, 2026 and October 18, 2026 respectively.
| Parameter | Airly | Stratus Cloud Journal |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (415 ratings) — better | — |
| Positive reviews | 60.0% of reviews | — |
| Number of ratings | 415 — better | — |
| Update frequency | Every 5 weeks | Every 8 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 14.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 36 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Airly | Linh Phan Nhat Khanh |
Bugs and requests
Airly
Reported bugs
9 issues- Complications on Apple Watch not showing AQI
- Widget provides no indication or incorrect data
- App requires location sharing always, even when zip code can be used for widgets
- Cannot find location
- Broken widget
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- No sensors for Moldova
- Widget shows no data if no sensors within 3km
- Notifications not received after last update
- In-app notification settings are ignored
Requested features
10 requests- Add Apple Watch complications for AQI
- Allow widget to show nearest sensor data
- Add Spanish language support
- Indicate data update time
- Allow viewing historical data beyond 2 days
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- Show hourly temperature
- Improve graphs with more information
- Add more active sensors
- Fix notification settings to respect user preferences
- Improve map quality and landscape support
Stratus Cloud Journal
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Airly
No in-app purchases
Stratus Cloud Journal
- Stratus Cloud Journal Weekly$9.997 Days
- Stratus Cloud Journal Yearly$49.991 Year








