Tsunami Shield vs HeatSafe
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Tsunami Shield
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Tsunami Shield – Your Tsunami Safety Companion Tsunami Shield helps you prepare for, respond to and stay informed during tsunami emergencies. Whether you're at home, travelling or monitoring loved ones overseas, Tsunami Shield gives you the information and tools you need when every second matters. Free to download with a 3-day free trial. After your trial, a monthly or annual subscription is required to continue accessing all features. All features are available in full during the trial and to active subscribers. OFFICIAL TSUNAMI ALERTS Receive official tsunami warnings and alerts for your monitored locations and current position when supported by local authorities. GLOBAL TSUNAMI MONITORING Track earthquakes and tsunami activity around the world with an interactive globe and real-time monitoring tools. PROTECT MULTIPLE LOCATIONS Monitor your home, family members, holiday destinations and other important locations around the globe. EVACUATION GUIDANCE Access practical evacuation information and guidance during tsunami warnings, helping you understand what actions to take. Includes map and step by step guidance to safety. EMERGENCY ASSISTANCE Quickly access emergency phone numbers and essential assistance information for your current country or other supported locations. TRAVEL MODE Stay safe while travelling the globe and add countries you visit to be informed of any local alerts. DESTINATION SAFETY CHECKS Research historical tsunami activity and coastal risk before travelling to potential tsunami-prone destinations. QUICK SAFETY MESSAGING Send pre-filled "I'm Safe" or "I need Help" emergency messages to loved ones using your device's messaging apps (with your GPS co-ordinates included for ‘I need help’ messages). DESIGNED FOR PREPAREDNESS Tsunami Shield is built to help individuals, families and travellers stay informed and better prepared before, during and after tsunami emergencies. Key Features • Official tsunami alerts and warnings • Real-time global earthquake monitoring • Multi-location protection worldwide • Evacuation guidance and safety information • Emergency assistance tools • Travel Mode • Global Watch • Destination tsunami risk checks • Quick safety messaging for loved ones • Designed for travellers, families and coastal communities Important: Tsunami Shield provides informational and preparedness tools only and should not replace official emergency instructions, evacuation orders or local authority guidance. Tsunami Shield Terms & Conditions: https://tsunamishield.tech/terms Tsunami Shield Privacy Policy: https://tsunamishield.tech/privacy
HeatSafe
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HeatSafe is a real-time heat stress management app built for outdoor and indoor work crews — and sports teams. Using hyper-local weather data, HeatSafe automatically calculates the current heat risk level and sends alerts to workers, athletes, and supervisors when thresholds are crossed — no personal weather station required. For workers: Get your current heat category, recommended work/rest cycles, and hydration reminders in your pocket. Log breaks and water intake with one tap; everything syncs automatically to your compliance record. For managers, foremen & coaches: See real-time risk status, break compliance, and hydration levels for every team member. One dashboard shows who's on track and who needs attention. Export audit-ready reports with a single click. Fully customizable to your operation: Start with NIOSH defaults (free tier) or build your own heat categories, work/rest ratios, and PPE offsets (paid plans) Input workload intensity and PPE type — the app adjusts safety recommendations automatically Set up your team, assign roles, and track acclimatization schedules for new and returning workers Align with your company's heat policy, state regulations, association requirements, or industry standards in minutes Ready for OSHA compliance & athletic association standards: HeatSafe is purpose-built to meet the proposed OSHA Heat Injury and Illness Prevention standard and state athletic association heat regulations. Your compliance data is logged automatically as work and training happen, so inspectors and compliance officers see a complete, timestamped record. Privacy Policy: https://getheatsafe.com/privacy-policy Terms of Use (EULA): https://getheatsafe.com/terms-of-use
Screenshots
Verdict
The clearest difference is in-app purchases: Tsunami Shield at none against HeatSafe's 7. 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. HeatSafe sells 7 in-app purchases, starting at $4.99 per month. Tsunami Shield asks for nothing beyond the download.
| Parameter | Tsunami Shield | HeatSafe |
|---|---|---|
| Price | Free | Free |
| Update frequency | — | Every 9 days |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.1 | 15.1 |
| Further details — not scored | ||
| Size | 44 MB | 39 MB |
| Age rating | 4+ | 12+ |
| Developer | Smart Send Australia Pty Ltd | MATTHEW ALEXANDER,NASH MCMURTREY |
In-app purchases
Tsunami Shield
No in-app purchases
HeatSafe
- HeatSafe Single Premium7 Days trial$4.991 Month
- HeatSafe Company Sub - 5 Users7 Days trial$9.991 Month
- HeatSafe - Coach Portal7 Days trial$9.991 Month
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- Company HeatSafe - 10 Users$17.991 Month
- HeatSafe Company 20 Users$29.991 Month
- HeatSafe Company 50 Users$59.991 Month
- HeatSafe Company 100 Users$99.991 Month









