Thunderstorm simulation vs Hellios
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Thunderstorm simulation
Experience the power of storms with this simulator. Create lightning with a tap, control rain and wind, or let the app run in automatic mode for a relaxing visual and auditory experience. Choose from three atmospheric locations.
- Create lightning with touch
- Realistic thunder and rain sounds
- Automatic storm simulation mode
- Control rain and wind
- Three scenic locations
- Ideal for relaxation and meditation
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This app is a simulator in which you create lightning with just a tap of your finger on the screen, along with realistic sounds of thunder and rain in the background. In automatic mode, the app itself simulates lightning and rain - all you have to do is watch! How to play: - Choose one of three locations (sunset, misty forest, night coast) - Tap on the screen and create lightnings - Control the rain, wind and owl sounds by tapping the corresponding icons at the bottom of the screen. - Turn on automatic mode - the button on the top right - and just admire the beauty of nature without pressing anything. Features: - Simple and intuitive interface - Ideal for relaxation and meditation - Realistic visual lightning effects and quality thunder and rain sounds. Attention: The application is created for entertainment and does not cause any harm! Enjoy the game.
Hellios
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How much time is left before our star swells into a red giant? Solar Countdown turns billions of years of stellar evolution into a story you can explore in minutes. Travel from the Sun’s “right now” to its distant future. Each stop on the timeline pairs gorgeous space visuals with clear, bite-sized explanations - what happens to the Sun, and what it could mean for Earth. What you’ll explore • Interactive timeline from the present day to the red-giant phase • Milestones explained in plain English (main sequence stability, warming Sun, magnetosphere changes, ocean loss, and more) • Big-picture countdown that makes cosmic time feel tangible • Beautiful animations and high-contrast space art that bring each era to life • Science-based estimates with approachable context - great for students, teachers, and space fans Whether you’re prepping a class, feeding a curiosity rabbit hole, or love beautiful space apps, this is a quick, captivating way to see our star’s future.
Screenshots
Verdict
The clearest difference is ads: Hellios at none against Thunderstorm simulation's shown. Hellios also leads on update cadence (daily vs every 7 months). Thunderstorm simulation's advantage is iOS requirement (15.0 vs 18.2). On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Thunderstorm simulation ships an update every 7 months, Hellios daily. The most recent releases landed on October 1, 2026 and September 25, 2026 respectively.
| Parameter | Thunderstorm simulation | Hellios |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (27 ratings) — better | — |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 27 — better | — |
| Update frequency | Every 7 months | Daily — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 18.2 |
| Further details — not scored | ||
| Size | 10 MB | 34 MB |
| Age rating | 4+ | 4+ |
| Developer | Yaroslav Novytskyi | Volodymyr Shcherbiuk |
In-app purchases
Thunderstorm simulation
No in-app purchases
Hellios
No in-app purchases
Questions
Is Thunderstorm simulation free?
Is Hellios free?
Do Thunderstorm simulation or Hellios have ads?
Which is updated more often, Thunderstorm simulation or Hellios?
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