Comparison

Twinkle Clock vs Lunea Observatory

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

Head to head
About

Twinkle Clock

Read full description

Twinkle Clock turns your screen into a night sky — a clock face made of twinkling stars and constellations. FREE • 12 zodiac constellations, swipe to switch • A twinkling starfield with the time overlaid on constellation lines PRO (one-time purchase) • All 88 official constellations • ~8,900 naked-eye stars across the whole sky • The Milky Way and the Moon & planets (Mercury–Saturn) • Nebulae, star clusters, and galaxies • Tap any star, the Moon, or a planet to read about it • Time Travel — pick any date and time to see what the sky looked like (or will look like) • Major meteor shower activity windows Available on iPhone, iPad, Mac, Apple TV, and Apple Vision Pro.

About

Lunea Observatory

Features
Read full description

Lunea Observatory is a pocket observatory for the real sky above you. FEATURES Solar System Navigator: swipe from Sun → Pluto with real-time positions and distances (VSOP87, ELP2000). Moon phases: precise timing, illumination, and libration. Planets: brightness, elongation, and rise/set times for your exact location. Tonight’s Observation: a simple prompt for what to look for tonight. Lunar calendar: upcoming phases and astronomical events. Built for stargazers, photographers, and the moon‑curious. Privacy Policy: https://lunea-astrology.com/privacy-policy Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Twinkle Clock4 screens
Lunea Observatory4 screens

Verdict

The call

The clearest difference is in-app purchases: Lunea Observatory at none against Twinkle Clock's 1. Twinkle Clock's advantage is ads (none vs shown) and device support (4 vs 2). On price 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Twinkle Clock sells 1 one-off in-app purchase. Lunea Observatory asks for nothing beyond the download.

Scorecard3 real differences · 3 level
Twinkle Clock versus Lunea Observatory: the parameters behind the verdict, then further details
ParameterTwinkle ClockLunea Observatory
PriceFreeFree
Update frequencyFortnightly—
AdsNo — betterYes
In-app purchasesYesNo — better
DevicesiPhone, iPad, Mac, Vision Pro — betteriPhone, iPad
Requires iOS17.0 — better18.5
Further details — not scored
Size23 MB79 MB
Age rating4+4+
DeveloperHiroyasu HiraiMarlin Mack

In-app purchases

1 purchases

Twinkle Clock

One-time1
  • Twinkle Clock Pro$24.99
None

Lunea Observatory

No in-app purchases

Questions

Is Twinkle Clock free?
Twinkle Clock is free to download, with in-app purchases available.
Is Lunea Observatory free?
Lunea Observatory is free to download, with no in-app purchases.
Do Twinkle Clock or Lunea Observatory have ads?
Lunea Observatory shows ads; Twinkle Clock does not.

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