TornadoSpyLite vs Tsunami US
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TornadoSpyLite
Instantly report and view tornado sightings worldwide using advanced technology. Get real-time alerts and track storm movements on a map, with user-submitted photos and notes. This app helps users receive timely information to stay safe during severe weather events.
- Track tornado movement worldwide
- Report nearby tornadoes instantly
- View official National Weather Service reports
- Share and view tornado photos
- Write storm report notes
- Rate user-submitted sightings
- AccuSpy™ accurate storm spotting
Read full descriptionHide full description
TornadoSpy with AccuSpy™ technology gives you the power to report and view official and user spotted tornadoes instantly. On 5/10/10, a TornadoSpy user spotted the Oklahoma City tornado 20 MINUTES before the NOAA report, which gave other TornadoSpy users valuable lead time to escape the storm. This is a frequent occurrence since user reports are submitted and viewable immediately. Sightings are filtered through state-of-the art AccuSpy™ technology to prevent false alerts and only send you the most accurate sightings. Features: - Track tornado movement worldwide on the built-in map - Report nearby tornadoes with a simple touch - Includes official reports from National Weather Service storm spotters - Share and view tornado photos in seconds - Write storm report notes - Users can rate sightings submitted by other users - AccuSpy™ state-of-the art storm spotting Download now, and become a part of the fastest and largest worldwide storm spotting network. Demo video can be seen at justintimeapps.com/ts.html Try out this ad-supported version for free. Check out these other apps from justintimeapps: HailSpy TornadoSpy+ TornadoSpyHD+ (iPad version) CoordCalc
Tsunami US
This app helps users understand their tsunami risk by providing inundation maps for the US West Coast and Hawaii. It offers information on tsunami warnings, preparedness, and links to relevant authorities.
- Tsunami inundation maps
- Risk assessment for US West Coast
- Risk assessment for Hawaii
- Tsunami warning information
- Preparedness guidance
- Links to authorities
Read full descriptionHide full description
Tsunamis are amongst the deadliest natural disasters. Eighty percent of all tsunamis occur in the Pacific threatening in particular US' West Coast and Hawaii. Is your home located in a potential tsunami inundation zone? Is your workplace, your children's school, your favorite recreation spot or restaurant? Do you want to learn about tsunami warnings and how to prepare for the worst case? Tsunami - US West Coast contains the available tsunami inundation maps for California, Oregon, Washington State, and Hawaii and helps you to know your tsunami risk. It helps you to know whether you are located in a tsunami inundation zone and comes with a lot of information around tsunamis warnings, preparedness, and relevant links to authorities.
Screenshots
Verdict
The clearest difference is in-app purchases: Tsunami US at none against TornadoSpyLite's 3. Tsunami US also leads on review sentiment (50% vs 32%) and update cadence (every 3 months vs every 7 months). TornadoSpyLite's advantage is rating (3.3 vs 2.8). On price, ratings volume, 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. TornadoSpyLite sells 3 one-off in-app purchases. Tsunami US asks for nothing beyond the download.
TornadoSpyLite holds the better App Store score, 3.3 against 2.8. Both are backed by a comparable volume of ratings — 27 and 17 respectively. Written reviews complicate that: 32% of TornadoSpyLite's written reviews are positive against 50% of Tsunami US's, so the app with the better star average is not the one people write more warmly about.
TornadoSpyLite ships an update every 7 months, Tsunami US every 3 months. The most recent releases landed on October 22, 2026 and October 24, 2026 respectively.
| Parameter | TornadoSpyLite | Tsunami US |
|---|---|---|
| Price | Free | Free |
| Rating | 3.3 (27 ratings) — better | 2.8 (17 ratings) |
| Positive reviews | 32.4% of reviews | 50.0% of reviews — better |
| Number of ratings | 27 — better | 17 |
| Update frequency | Every 7 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 9.0 — better |
| Further details — not scored | ||
| Size | 24 MB | 41 MB |
| Age rating | 4+ | 4+ |
| Developer | Justin Time | Matthias Hackl |
Customer experience
TornadoSpyLite
Tsunami US
In-app purchases
TornadoSpyLite
- Extreme Weather Radio$0.99
- Ad Remover$0.99
- Fast Animated Radar (US)$0.99
Tsunami US
No in-app purchases
Questions
Is TornadoSpyLite free?
Is Tsunami US free?
Which has better reviews, TornadoSpyLite or Tsunami US?
Do TornadoSpyLite or Tsunami US have ads?
Which is updated more often, TornadoSpyLite or Tsunami US?
Other comparisons















