Alti vs Hazard Map
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Alti
This app provides your current altitude with a simple and cool interface. It allows switching between meters and feet and automatically stores your maximum altitude. It's also available for Apple Watch and as a widget.
- Current altitude display
- Switch between meters and feet
- Store maximum altitude
- Apple Watch support
- Widget support
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The coolest and the simplest Altimeter ever! You can switch from meters and feet and store the maximum reached altitude automatically. Available also for Apple Watch, without have the app on the iPhone opened! Now available also as Widget! If you like, leave me a positive review, if not, leave me a positive review!
Hazard Map
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Hazard Map shows what is happening on Earth, and what people nearby have marked. Wildfires, storms, volcanoes, floods, and icebergs from NASA’s Earth Observatory Natural Event Tracker appear as pins on a live map. Open one for the event type, location, and source. These are tracked natural events, not evacuation orders or official warnings. Anyone can add a place. A flooded road, a closed trail, a fire someone can see, a spot that does not feel safe. User pins sit next to NASA pins and are labeled as reports, so a neighbor’s note is never shown as a government alert. Add a short description and update it when the situation changes. Filter by fires, storms, floods, and other events. Look near your location, or move the map and see what is active somewhere else. Save a pin. Check back when a storm has passed or a report has gone quiet. Hazard Map is a picture of possible danger, built from public science and from people on the ground. It does not rank risk, and it does not tell you to leave. For emergencies, follow local authorities.
Screenshots
Verdict
The clearest difference is price: Alti at Free against Hazard Map's $9.99. Alti also leads on update cadence (every 37 months vs every 91 months) and iOS requirement (12.0 vs 17.0). On ads, in-app purchases 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
Alti is free to download; Hazard Map costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Alti ships an update every 37 months, Hazard Map every 91 months. The most recent releases landed on October 20, 2026 and October 14, 2026 respectively.
| Parameter | Alti | Hazard Map |
|---|---|---|
| Price | Free — better | $9.99 |
| Rating | 3.9 (286 ratings) — better | — |
| Positive reviews | 32.4% of reviews | — |
| Number of ratings | 286 — better | — |
| Update frequency | Every 37 months — better | Every 91 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod, Apple Watch — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 24 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | albertopasca.it | Jose Leal |
Bugs and requests
Alti
Reported bugs
19 issues- Altimeter does not read location
- App is stuck
- Not accurate
- Géolocalisation ne fonctionne pas
- Doesn't seem to work on iPad 9
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- Doesn’t work most of the time
- Can’t change unit of measure
- Altitude jumps around
- Location is not correct
- Not working at all
- Can’t find location
- Altitude varies by 90 feet
- Doesn’t record how high you go
- Works, occasionally
- Complication does not update
- Application doesn’t give more than 800 m altitude
- Reads 0 now
- Too hard to switch units
- Too hard to enter new location
Requested features
3 requests- Display GPS accuracy
- Add a way to view past altitudes
- Instructions for use
Hazard Map
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Alti
No in-app purchases
Hazard Map
No in-app purchases









