Thunderstorm Simulator vs Space UI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Thunderstorm Simulator
Create a personalized thunderstorm experience with adjustable rain, thunder, and lightning effects. Customize sound volumes, lightning occurrences, and light colors to relax or fall asleep. Includes a sleep timer and options for background nature sounds.
- Adjustable rain sounds and volume
- Customizable thunder and lightning occurrences
- Screen or camera flash lightning effects
- Background nature sounds
- Sleep timer with fade-out
- Keep Awake mode
- Lightning on Demand control
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Summon a thunderstorm on your smart device. Relax and fall fast asleep to the sounds of rain and thunder. The screen or camera flashes when lightning strikes.* *Defaults to screen for lightning light effects if camera flash is not available. THUNDERSTORMS • Strong Thunderstorm — Heavy rain with frequent lightning and thunder nearby • Normal Thunderstorm — Steady rain with a full range of lightning and thunder • Weak Thunderstorm — Light rain with occasional lightning and thunder far off • Passing Thunderstorms — Rain and lightning intensity changes as the storms pass SETTINGS Rain • Toggle rain sound effects • Change rain audio: Default, Heavy, Steady, Light, On Tin Roof • Change rain volume Lightning/Thunder • Toggle thunder sound effects • Change thunder volume • Change delay lightning (Wireless audio delay offset) • Toggle delay thunder • Toggle lightning light effects • Change lightning output: Camera Flash, Screen • Change lightning transition effects • Change lightning/thunder occurrence: Default, Occasional, Normal, Frequent • Change color and max brightness of lightning light effects (Screen only) Passing Thunderstorms • Change starting storm for Passing Thunderstorms: Weak, Normal, Strong • Change cycle time for Passing Thunderstorms: 15m, 30m, 60m Background Sounds • Toggle background sounds: Birds, Cicadas, Crickets, Frogs • Change background sounds volume General • Keep Awake to prevent your device from going to sleep so lightning effects remain visible • Hide Status Bar to maximize screen space for lightning effects • Select a mode to automatically start when the app opens • Choose a time to automatically stop the selected mode • Choose a time to automatically restart the selected mode when the sleep timer ends, enabling a recurring cycle ADDITIONAL FEATURES • Sleep Timer — Set a timer with a gradual audio fade-out. • Turn Screen Black — Adds a black overlay and sets the device to minimum brightness. Use the Screen Brightness Delay setting to compensate for brightness ramp-up on some devices. Set to 0.25–1 second if lightning effects do not reach peak brightness when thunder is loudest. • Lightning on Demand — Start a storm and use the lightning buttons at the bottom of the screen for manual control. • Bluetooth Support — Connect to Bluetooth speakers. Adjust the Delay Lightning setting to offset wireless audio delay. Please contact me at support@thunderstorm.scottdodson.dev if you experience any issues. I'd love to hear your thoughts and appreciate you taking the time to rate and review the app. I want to continue to improve Thunderstorm Simulator and create a great experience for you and future users. Thank you! —Scott Ad-supported version: https://apps.apple.com/us/app/thunderstorm-simulator-w-ads/id1482707561
Space UI
Create realistic sci-fi user interfaces procedurally for video productions or personal projects. Features include interactive displays, alien languages, sound effects, and cross-device syncing. Users can also sync colors with smart home lights.
- Procedural UI generation
- Interactive interfaces
- Multiple alien languages
- Sound effects
- Save interface seeds
- Cross-device syncing
- HomeKit light sync
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Generate and access great, realistic looking sci-fi user interfaces for use in video productions or hobby projects. FEATURES: • User interfaces are generated procedurally. • Interfaces are interactive. • Multiple imaginary alien languages. • Sound Effects • Save the seeds for interfaces you like. • Sync interface designs with multiple devices to create a seamless design that extends across multiple displays. • Sync interface colors with HomeKit lights. I encourage customers to contact me with additional UI element ideas that they want added to the app.
Screenshots
Verdict
The clearest difference is review sentiment: Thunderstorm Simulator at 100% against Space UI's 0%. Thunderstorm Simulator also leads on iOS requirement (13.0.0 vs 26.0). Space UI's advantage is price (Free vs $1.99) and rating (5.0 vs 4.5). On ratings volume, ads, in-app purchases and monetization model 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
Space UI is free to download; Thunderstorm Simulator costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Space UI holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews complicate that: 100% of Thunderstorm Simulator's written reviews are positive against 0% of Space UI's, so the app with the better star average is not the one people write more warmly about.
Thunderstorm Simulator ships an update every 5 months, Space UI every 2 months. The most recent releases landed on September 23, 2026 and July 30, 2026 respectively.
| Parameter | Thunderstorm Simulator | Space UI |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | 4.5 (2 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 100.0% of reviews — better | 0.0% of reviews |
| Number of ratings | 2 — better | 1 |
| Update frequency | Every 5 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Best chart rank | — | #52 — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac, Apple TV — better |
| Requires iOS | 13.0.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 72 MB | 190 MB |
| Age rating | 12+ | 4+ |
| Developer | Scott Dodson | 256 Arts |
Customer experience
Thunderstorm Simulator
Space UI
In-app purchases
Thunderstorm Simulator
No in-app purchases
Space UI
No in-app purchases
Questions
Is Thunderstorm Simulator free?
Is Space UI free?
Which has better reviews, Thunderstorm Simulator or Space UI?
Do Thunderstorm Simulator or Space UI have ads?
Which is updated more often, Thunderstorm Simulator or Space UI?
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