Comparison

What's Up? vs StarPromenade

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

Head to head
About

What's Up?

Discover celestial bodies visible in the night sky with this intuitive app. Easily track planets, the Sun, and Moon, and forecast their appearance. Access detailed information and moon phases, with support for the Southern Hemisphere.

Highlights
  • Simple sky grid display
  • Effortless navigation
  • Time-bar functionality
  • Comprehensive celestial information
  • Observation insights
  • Moon phases
  • Wikipedia links
Features
Read full description

Whether you're deciding if it's worth setting up your telescope or simply curious about that bright 'star,' What's Up? is the perfect companion for sky enthusiasts. Key Features: • Simple Sky Grid Display: View the positions of the Sun, Moon, and planets on an intuitive grid representing the night sky. • Effortless Navigation: No augmented reality or motion tracking needed—just a straightforward display to see what's up. • Time-Bar Functionality: Slide the time-bar to forecast the appearance of your favorite planets and their directions. • Comprehensive Information: Displays the location of the Sun, Moon, planets, and even Pluto. • Observation Insights: Instantly identify which celestial objects are prime for observation. • Moon Phases: Stay updated with the current moon phase. • Wikipedia Links: Dive deeper with quick access to Wikipedia pages for detailed information. • Southern Hemisphere Support: Sky-watchers down south are covered too. • Minimal Network Usage: Only needed for Wikipedia access. • Note: Localizations are limited to planet names. For a full 3D rendered experience with motion tracking, check out our award-winning companion app, Pocket Universe. If you already own Pocket Universe, you'll find What's Up? familiar yet even more user-friendly, with a sleeker design and quicker access to the "Currently Visible" mode, and basic Apple Watch support.

About

StarPromenade

Features
Read full description

This is a space travel simulator application. Using 3D stellar position data, you can experience realistic space travel. You can board a spacecraft that can fly billions of times faster than the ISS (International Space Station) and take an interstellar flight. During the flight, the positioning of stars changes, and familiar constellations are transformed into novel, never-before-seen shapes.

Screenshots

What's Up?3 screens
StarPromenade2 screens

Verdict

The call

The clearest difference is price: What's Up? at Free against StarPromenade's $0.99. On update cadence, ads, 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

What's Up? is free to download; StarPromenade costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

What's Up? ships an update every 3 months, StarPromenade every 2 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

Scorecard1 real difference · 9 level
What's Up? versus StarPromenade: the parameters behind the verdict, then further details
ParameterWhat's Up?StarPromenade
PriceFree — better$0.99
Rating4.2 (9 ratings) — better—
Positive reviews57.9% of reviews—
Number of ratings9 — better—
Update frequencyEvery 3 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad, iPod
Requires iOS12.5 — better13.5
Further details — not scored
Size49 MB2 MB
Age rating4+4+
DeveloperJohn KennedyTakao Akatsu

In-app purchases

None

What's Up?

No in-app purchases

None

StarPromenade

No in-app purchases

Questions

Is What's Up? free?
What's Up? is free to download, with no in-app purchases.
Is StarPromenade free?
StarPromenade costs $0.99, with no in-app purchases.
Do What's Up? or StarPromenade have ads?
Neither What's Up? nor StarPromenade shows ads.
Which is updated more often, What's Up? or StarPromenade?
What's Up? ships an update every 3 months, and StarPromenade every 2 months. Most recently, What's Up? was updated on November 1, 2026 and StarPromenade on November 3, 2026.

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