FahrenCelsi vs JP Weather Map
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
FahrenCelsi
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For those who travel between the United States and other countries. The goal is to get used to a scale that is unfamiliar to you, through your senses. - Displays current temperature in both ℉ and ℃ - History of retrieved temperatures - Find out the correspondence between ℉ and ℃ - Quiz on ℉ and ℃ conversion The temperature is acquired using Apple's WeatherKit. There is a limit to the number of times the temperature you can retrieve. Terms of Use (EULA) https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
JP Weather Map
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Rain & Wind Weather Map is a weather forecast map for users whose work or equipment is directly affected by weather—such as construction sites and outdoor operations. "What will the rain and wind be like at the site?" "Check cloud/rain movement for solar power." "How hot will it get during today's work?" "Plan site work and deliveries days ahead." View changes in rain, clouds, temperature, wind, and pressure on the map. Main Features ■ Weather data on the map Uses latest NOAA GFS global numerical model data, rendered for Japan and surrounding areas. Displayable elements (switch via top buttons): Rain: precipitation intensity Clouds: cloud cover Temperature: near-surface air temperature Wind: near-surface wind speed Pressure: sea-level pressure ■ Nationwide to regional views Japan (full) / Japan (excl. islands) Hokkaido, Tohoku, Kanto, Hokuriku, Tokai, Kansai, Chugoku, Shikoku, Kyushu, Okinawa Zoom in regional views to check around your work site or facility. ■ Time-series animation Play forecast data continuously for the selected day. Play/Pause, previous/next, time slider Auto-stops at the final forecast time Visualize rain/cloud movement and changes in temperature/wind. ■ Up to 16 days ahead Up to 5 days (120h): every 1 hour 123h to 384h (16 days): every 3 hours Current day starts near present time; following days from 00:00. Ideal for short-term decisions and long-term scheduling. ■ Quick date selection Tap forecast dates at the top to switch days instantly. Typical Uses Construction/civil engineering scheduling Outdoor inspections, maintenance, surveying Material delivery & heavy equipment planning Solar power cloud/rain monitoring Farm work and outdoor events Heat/wind impact assessment Travel weather trends Data Source Directly fetches GFS 0.25° grid data from NOAA/NCEP NOMADS (no intermediate servers). GFS is a global model suitable for broad patterns and multi-day forecasts. Important Notes App data is based on numerical predictions and not official forecasts from the Japan Meteorological Agency. 0.25° resolution may not capture fine local terrain effects or sudden changes. For critical decisions (work, safety, evacuation), always combine with official JMA forecasts, warnings, radar, and local authority information. Retrieval may be delayed due to data updates, NOAA status, or network conditions. Check site weather changes with Rain & Wind Weather Map via maps and time animation.
Screenshots
Verdict
The clearest difference is in-app purchases: JP Weather Map at none against FahrenCelsi's 2. JP Weather Map also leads on update cadence (every 2 days vs every 6 weeks). 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
Both are free to download. FahrenCelsi sells 2 in-app purchases, starting at $1.99 per 7 days. JP Weather Map asks for nothing beyond the download.
FahrenCelsi ships an update every 6 weeks, JP Weather Map every 2 days. The most recent releases landed on September 30, 2026 and October 8, 2026 respectively.
| Parameter | FahrenCelsi | JP Weather Map |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 6 weeks | Every 2 days — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | No — better |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 17.5 — better | 17.6 |
| Further details — not scored | ||
| Size | 6 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Motonari Hibi | mobazo |
In-app purchases
FahrenCelsi
- One Week$1.997 Days
- One Month$3.991 Month
JP Weather Map
No in-app purchases
Questions
Is FahrenCelsi free?
Is JP Weather Map free?
Do FahrenCelsi or JP Weather Map have ads?
Which is updated more often, FahrenCelsi or JP Weather Map?
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