Heat Compass vs Hotspot Earth
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Heat Compass
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Heat Compass turns the official military heat-flag system into a personal heat-safety coach. It computes WBGT (wet bulb globe temperature), the standard used by the U.S. Marine Corps and occupational safety programs, from live weather for your location, then tells you plainly what the conditions mean and what to do about them. KNOW THE FLAG - Live WBGT and the five-color heat flag (White, Green, Yellow, Red, Black) for where you are right now - Work-rest guidance for each flag: how long to work, how long to cool down - 7-day forecast with heat flags, so you can plan the week - Nearby weather stations, and transparency about which station your reading came from STAY AHEAD OF DEHYDRATION - A daily water goal derived from the heat, your activity level, and optionally your body weight - One-tap drink logging with reminders that adapt to the heat flag - An "I'm outside" mode that tightens reminders while you are exposed - Track drinks for family members or a work crew with household tagging - Guidance is capped at safe intake rates, because drinking too much is also dangerous GET WARNED EARLY - Proactive heat-risk alerts: the app periodically checks conditions and warns you when the flag climbs, even when the app is closed - A pavement heat check that estimates surface temperature, useful for dog owners and hot-surface work PRIVATE BY DESIGN No account and no sign-in. Your hydration log, profile, and settings stay on your device. Your location is used to fetch weather for where you are and is not stored on our servers. No ads, no tracking, free. A NOTE ON SCOPE Heat Compass provides general heat-safety guidance based on published heat-stress doctrine. It is an aid for planning, not a medical device, and it does not replace occupational safety programs, OSHA requirements, or your own judgment.
Hotspot Earth
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Hotspot Earth - The Hottest Point on Earth, Right Now Where on Earth is it hottest right now? Hotspot Earth shows you in seconds. This single-purpose app monitors the world's most extreme heat locations - from the Lut Desert and Death Valley to the Sahara, Persian Gulf, and South Asian heat belts - and pinpoints whichever is hottest at this moment on a beautiful 3D satellite map. WHAT YOU CAN DO ° See the hottest place on Earth in seconds ° Discover the world's top 10 hottest places ° Watch the stunning heat map cover the earth ° Make it part of your day with widgets ° Share what you find WHY HOTSPOT EARTH? Heatwaves are becoming more frequent, more intense, and longer-lasting. Records that once stood for decades are now broken multiple times per decade. Hotspot Earth turns abstract climate data into a daily, glanceable experience - a window into where Earth's heat is concentrating today. Whether you're a weather enthusiast, climate-curious, traveler, or just love seeing extreme records, Hotspot Earth makes the planet's heat tangible. ONE THING, DONE WELL No accounts. No ads. No clutter. Just the hottest point on Earth, beautifully presented. SUBSCRIPTION PLANS: Hotspot Earth offers 1 subscription plan and 1 in-app-purchase which unlock Pro Mode to access all content. 1. Monthly Plan 2. Lifetime Purchase More Subscription Information: - Payment will be charged to your Apple ID account at confirmation of purchase. - Subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period. - Within 24-hours prior to the end of the current period, the account will be charged for the renewal of the subscription, indicating the cost of the renewal. - You can manage subscriptions and turn off auto-renewal after purchase by going to your App Store account settings. - Any unused portion of a free trial period, if offered, will be forfeited when purchasing a subscription. https://www.brainfevermedia.com/privacyPolicy.html https://www.brainfevermedia.com/terms.html
Screenshots
Verdict
The clearest difference is in-app purchases: Heat Compass at none against Hotspot Earth's 2. Heat Compass also leads on iOS requirement (16.0 vs 26.2). 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. Hotspot Earth sells 2 in-app purchases, starting at $1.99 per month. Heat Compass asks for nothing beyond the download.
Both ship on a similar rhythm, roughly weekly. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.
| Parameter | Heat Compass | Hotspot Earth |
|---|---|---|
| Price | Free | Free |
| Update frequency | Weekly | Weekly |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 16.0 — better | 26.2 |
| Further details — not scored | ||
| Size | 44 MB | 38 MB |
| Age rating | 4+ | 4+ |
| Developer | craig merry | James Grote |
In-app purchases
Heat Compass
No in-app purchases
Hotspot Earth
- Pro Monthly$1.991 Month
- Lifetime Access$19.99
Questions
Is Heat Compass free?
Is Hotspot Earth free?
Do Heat Compass or Hotspot Earth have ads?
Which is updated more often, Heat Compass or Hotspot Earth?
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