Storma vs Suntain
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Storma
Observe real-time thunderstorms globally with a live map and receive instant notifications for detected storms. Watch storms directly from your iPhone's lock screen or Dynamic Island.
- Real-time lightning strike map
- Global storm observation
- Customizable storm alerts
- Live Activities integration
- Lock screen storm viewing
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Storma is the ultimate app for observing thunderstorms worldwide. It's easy to stay informed about weather phenomena! REAL-TIME MAP View lightning strikes live on the world map and explore storms around the globe. NOTIFICATIONS Create alerts and receive notifications when a storm is detected near a point of interest. LIVE ACTIVITIES Watch storms directly from your iPhone's lock screen or Dynamic Island with Live Activities.
Suntain
Visualize the sun's position and trajectory based on your location and date. Get sunrise and sunset times, including when the sun appears or disappears behind terrain. Access annual data on daylight and sunshine duration.
- Sun position and trajectory visualization
- Horizon sunrise and sunset times
- Sunrise/sunset behind terrain
- Annual sunrise/sunset data
- Daylight and sunshine duration
- Sunshine duration analysis
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This application visualize position and trajectory of the sun, based on location and date. It provides: - Horizon (sea level) Sunrise and sunset time - Sunrise and sunset behind terrain/mountain: When sun appears and disappears! Annual information of the specified location is also available: sunrise and sunset along the year, daylight and sunshine duration for every day. On top of this, number of days with more (or less) than a specific amount of sunshine duration is available.
Screenshots
Verdict
The clearest difference is update cadence: Storma at monthly against Suntain's every 4 months. Suntain's advantage is iOS requirement (12.0 vs 26.0). On price, review sentiment, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Storma ships an update monthly, Suntain every 4 months. The most recent releases landed on October 20, 2026 and October 2, 2026 respectively.
| Parameter | Storma | Suntain |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (12 ratings) — better | — |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 12 — better | — |
| Update frequency | Monthly — better | Every 4 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, Mac, Apple Watch — better | iPhone, iPad, iPod |
| Requires iOS | 26.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 72 MB | 54 MB |
| Age rating | 4+ | 4+ |
| Developer | Benjamin Pisano | Jacques DUMAREST |
Customer experience
Storma
Suntain
In-app purchases
Storma
No in-app purchases
Suntain
No in-app purchases
