Comparison

Thunderstorm simulation vs Hellios

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Features
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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.

About

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

Thunderstorm simulation4 screens
Hellios4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Thunderstorm simulation ships an update every 7 months, Hellios daily. The most recent releases landed on October 1, 2026 and September 25, 2026 respectively.

Scorecard3 real differences · 7 level
Thunderstorm simulation versus Hellios: the parameters behind the verdict, then further details
ParameterThunderstorm simulationHellios
PriceFreeFree
Rating4.5 (27 ratings) — better—
Positive reviews50.0% of reviews—
Number of ratings27 — better—
Update frequencyEvery 7 monthsDaily — better
AdsYesNo — better
In-app purchasesNoNo
MonetizationAd-supported—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better18.2
Further details — not scored
Size10 MB34 MB
Age rating4+4+
DeveloperYaroslav NovytskyiVolodymyr Shcherbiuk

In-app purchases

None

Thunderstorm simulation

No in-app purchases

None

Hellios

No in-app purchases

Questions

Is Thunderstorm simulation free?
Thunderstorm simulation is free to download, with no in-app purchases.
Is Hellios free?
Hellios is free to download, with no in-app purchases.
Do Thunderstorm simulation or Hellios have ads?
Thunderstorm simulation shows ads; Hellios does not.
Which is updated more often, Thunderstorm simulation or Hellios?
Thunderstorm simulation ships an update every 7 months, and Hellios daily. Most recently, Thunderstorm simulation was updated on October 1, 2026 and Hellios on September 25, 2026.

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