Four Dimensional Space vs Black Hole Sun
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Four Dimensional Space
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Enter a rotating black hole and explore a visual experience beyond the limits of three-dimensional space. This app combines a glowing accretion disk with a conceptual 4D tesseract projected into 3D space, creating a dynamic and immersive visualization. Interact with the scene by adjusting tilt, rotation speed, and gravitational lensing strength to reveal new perspectives and distortions. Watch as the structure shifts and bends under the influence of the black holeβs gravity. No goals β just observe, explore, and experience a different dimension.
Black Hole Sun
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Transform your device into a living gallery of cinematic space art. Black Hole Sun brings 450 cosmic artworks to life with custom Metal rendering, slow ambient motion, and elegant full-screen transitions. Explore black holes, distant worlds, luminous nebulae, alien landscapes, and other visions of the universeβall presented with rich detail and a calm, atmospheric style. Browse the complete collection, preview each artwork in motion, build a personal list of favorites, or leave the app running as a quiet visual display. Every scene flows through cinematic transitions and subtle Ken Burns-style movement designed to make the artwork feel alive without becoming distracting. Save your favorite artwork images directly to Photos and use them as wallpapers on your iPhone. FEATURES β’ 450 bundled cosmic artworks β’ High-resolution 3840 Γ 2160 HEIC imagery β’ Custom Metal-powered live rendering β’ Cinematic full-screen transitions β’ Slow, ambient visual movement β’ Subtle Ken Burns-style animation β’ Complete thumbnail grid for easy browsing β’ Full-screen artwork previews β’ Favorites for building a personal collection β’ Save artwork images directly to Photos β’ Designed specifically for a beautiful iPhone experience Whether you want to discover new cosmic scenes, find a striking wallpaper, or simply enjoy a few quiet moments surrounded by space art, Black Hole Sun turns your iPhone into a window on the universe.
Screenshots
Verdict
The clearest difference is price: Four Dimensional Space at Free against Black Hole Sun's $0.99. Black Hole Sun's advantage is ads (none vs shown) and device support (5 vs 2). On update cadence, in-app purchases and iOS requirement there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Four Dimensional Space is free to download; Black Hole Sun costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 28, 2026 and November 5, 2026 respectively.
| Parameter | Four Dimensional Space | Black Hole Sun |
|---|---|---|
| Price | Free β better | $0.99 |
| Update frequency | Every 3 months | Every 3 months |
| Ads | Yes | No β better |
| In-app purchases | No | No |
| Devices | iPhone, iPad | iPhone, iPad, Mac, Apple TV, Vision Pro β better |
| Requires iOS | 26.2 | 26.0 β better |
| Further details β not scored | ||
| Size | 6 MB | 2.3 GB |
| Age rating | 4+ | 4+ |
| Developer | Toru Kawaguchi | Pieter Hartzenberg |
In-app purchases
Four Dimensional Space
No in-app purchases
Black Hole Sun
No in-app purchases
Questions
Is Four Dimensional Space free?
Is Black Hole Sun free?
Do Four Dimensional Space or Black Hole Sun have ads?
Which is updated more often, Four Dimensional Space or Black Hole Sun?
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