Mr. Chilly vs ISeeChange Tracker
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Mr. Chilly
This app provides detailed weather information for San Francisco's diverse microclimates and the entire Bay Area. View current temperatures, future forecasts, and dynamic heatmaps to plan your outdoor activities.
- Hourly forecasts (24 hours)
- Dynamic temperature heatmaps
- Day/night cycle visualization
- San Francisco microclimate view
- Bay Area and Peninsula weather
Read full descriptionHide full description
See the weather in San Francisco’s different microclimates, or zoom out to check the whole Bay Area! View the temperature in various neighborhoods and towns, and check out future forecasts. Want to see if Dolores Park is warm enough to pop open an ice cold… water? Need to choose between Ocean Beach and Half Moon Bay? Mr. Chilly has your back. Features: - Accurate hourly forecasts for the next 24 hours - Dynamic temperature heatmaps - Day/night cycle - Check San Francisco's microclimates or zoom out to see the Bay Area / Peninsula Mr. Chilly was created by: Alexander Chia & Anna Bleker.
ISeeChange Tracker
Document environmental changes and share your observations to contribute to climate change research. Connect with your community, discuss local challenges, and help drive solutions.
- Create personal observation accounts
- Post detailed sightings with photos
- Connect with local and global communities
- Contribute to local knowledge and research
- Share observations for solution advocacy
- Syncs with local weather data
Read full descriptionHide full description
Our climate is changing--and so are we. With ISeeChange, share your experiences and collect data to investigate our environment and help our communities through change. What you see change in your backyard, neighborhood, and city is important to our understanding of how climate change and weather affect our communities. Your observations and block-by-block insights can help cities, engineers and local organizations advocate for and create solutions to climate challenges. If you or your community has a question or hypothesis about how climate is changing your area, you can also use your ISeeChange account to collect data and answer those questions. • Create your account: Your account is a personal record of your sightings as well as a way to connect with your local community. Your location is generalized to protect your personal privacy. • Post a sighting: The best posts combine detailed stories and photos to show what you’re seeing in your environment and how it affects you. We then sync your stories to local weather data and trends. • Have conversations and connect: Comment on what others are seeing in your area and across the globe. Connect with community members on tips to manage the same climate challenges you are experiencing. • Help improve local knowledge and research: During weather events let us know what you’re seeing and check in on the feed to see what information your community is gathering. We may send push notifications and emails during local and regional weather events. When you respond to them, we do our best to share what you saw with people studying local weather trends. • Contribute to solutions: We share posts on social media, in newsletters and in reports to local partners that are working on solutions. Be sure to subscribe to our emails so you can be the first to know when we hear someone has used your post as data. This helps you and others track how your community is changing in response to climate change.
Screenshots
Verdict
The clearest difference is in-app purchases: ISeeChange Tracker at none against Mr. Chilly's 1. ISeeChange Tracker also leads on review sentiment (100% vs 86%). Mr. Chilly's advantage is ratings volume (6.8K vs 10) and rating (4.9 vs 4.6). On price, update cadence, ads 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
Both are free to download. Mr. Chilly sells 1 one-off in-app purchase. ISeeChange Tracker asks for nothing beyond the download.
Mr. Chilly holds the better App Store score, 4.9 against 4.6. That said, the two scores are not equally well evidenced: Mr. Chilly has 6.8K ratings behind it against 10, so its average is the more settled of the two. Written reviews complicate that: 86% of Mr. Chilly's written reviews are positive against 100% of ISeeChange Tracker's, so the app with the better star average is not the one people write more warmly about.
Mr. Chilly ships an update every 5 weeks, ISeeChange Tracker every 6 weeks. The most recent releases landed on October 17, 2026 and October 8, 2026 respectively.
| Parameter | Mr. Chilly | ISeeChange Tracker |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (6.8K ratings) — better | 4.6 (10 ratings) |
| Positive reviews | 86.5% of reviews | 100.0% of reviews — better |
| Number of ratings | 6.8K — better | 10 |
| Update frequency | Every 5 weeks — better | Every 6 weeks |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Best chart rank | #159 — better | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 13.0 | 13.0 |
| Further details — not scored | ||
| Size | 12 MB | 54 MB |
| Age rating | 4+ | 4+ |
| Developer | Alexander Chia | ISeeChange |
Customer experience
Mr. Chilly
ISeeChange Tracker
In-app purchases
Mr. Chilly
- No Ads$1.99
ISeeChange Tracker
No in-app purchases









