Cosmic Specks vs SolarNav 3D
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Cosmic Specks
Explore the solar system with accurate scale and orbital mechanics. This app removes common simplifications to reveal the true vastness and complexity of space. Witness planetary rotations, eclipses, and comet paths with unprecedented detail.
- Accurate planetary scale
- True orbital inclinations
- Realistic axial rotations
- Detailed comet paths
- Time-based simulations
- Precise eclipse visualization
- Data-driven accuracy indicators
Read full descriptionHide full description
Space is almost all empty. That turns out to be the beautiful part. Every picture of the solar system you've ever seen tells you small white lies. The planets are swollen so you can see them. The orbits are squashed flat and drawn as tidy circles. Everything is crowded together so it fits on the page. Cosmic Specks is the same solar system with the lies switched off, one at a time, so you can build an intuition for what was actually removed. IT OPENS WITH THE ARGUMENT. A ninety-second tour names the five lies and switches each one off, live: the sizes, the flatness, the circles, the stillness, the diagram eclipses. IT ISN'T FLAT. Turn on inclinations and the orbits fan out into the tilted planes they really occupy — Pluto's 17°, Mercury's 7°, the quiet disagreement the flat diagram hides. EVERYTHING SPINS. Each body turns on its own axis, at its own rate, at its own lean: Venus backwards, Uranus on its side, the Moon locked forever facing home. HALLEY'S COMET TAKES AN EPIC RUN. Seventy-six years, out past Neptune and back, on an orbit so long and lopsided it barely belongs on the same diagram. SWIM THROUGH TIME. Watch conjunctions close, planets loop backwards through retrograde, Saturn's rings turn edge-on and all but vanish, Venus cross the face of the Sun. JUMP TO A PRECISE ECLIPSE and see how tight the Moon's shadow really is — a couple of hundred kilometres of darkness, brushing over the Earth for a few minutes, landing on the real map where it really lands. On 2 August 2027 it crosses southern Spain and Egypt; jump there and watch. And when you want the honest picture of size: one tap drops everything to true scale, where the planets become the specks they are, and the emptiness is the whole photograph. HONEST BY CONSTRUCTION. Every solar-system app draws a picture; this one also shows you the picture's error. Bodies are enlarged so you can see them at all — and the exact factors are printed on screen the entire time you're looking (Sun ×24, bodies ≤×750). Positions are computed on your device from orbital elements, so the app also tells you when it stops being trustworthy: good near today, approximate centuries out, illustrative in the deep millennia. Even the maps admit their gaps: Miranda is half blank because humanity has only ever seen half of it. WHAT IT DOESN'T DO. No account. No ads. No subscription. No analytics — App Privacy is "Data Not Collected". Nothing leaves your phone. Free, with one optional purchase that opens 10,000 years in each direction.
SolarNav 3D
Read full descriptionHide full description
Watch the solar system as it is, right now. SolarNav lets you explore the Sun, the planets, dwarf planets, their moons, and the asteroid belts in 3D, all shown in their real, continuously updated positions. Navigate freely through space, approach any celestial body, and watch each planet and moon rotate, always facing the Sun as it truly does. TRAVEL THROUGH TIME Go three centuries into the past or just as far into the future. Play continuously, fast-forward, or jump straight to any date you choose. EXPERIENCE AN ECLIPSE Browse every solar and lunar eclipse around a given date. Pick an observing location and watch the eclipse unfold from the ground, as if you were there. EXPLORE 26 celestial bodies and their asteroid belts, each with a detailed info card: distance, size, temperature, composition, and fun facts. No connection required. No data collected.
Screenshots
Verdict
The clearest difference is in-app purchases: SolarNav 3D at none against Cosmic Specks's 1. On price, ads, device support and iOS requirement 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. Cosmic Specks sells 1 one-off in-app purchase. SolarNav 3D asks for nothing beyond the download.
| Parameter | Cosmic Specks | SolarNav 3D |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Daily | — |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 12 MB | 139 MB |
| Age rating | 4+ | 4+ |
| Developer | Kaolin Fire | Frederic Sala |
In-app purchases
Cosmic Specks
- 20,000 Years$2.99
SolarNav 3D
No in-app purchases









