Comparison

Curved Spaces vs StarPromenade

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

Head to head
About

Curved Spaces

Explore multi-connected universes with this flight simulator. Visualize how light wraps around complex spaces, creating repeating crystalline patterns. It's a tool for students and researchers in topology and cosmology.

Highlights
  • Multi-connected universe simulation
  • Visualizes light wrapping
  • Crystalline pattern display
  • Topology research tool
  • Cosmology research tool
  • Educational for 3-manifolds
Read full description

Curved Spacess is a flight simulator for multi-connected universes. Because light itself wraps around such a space, inhabitants see their universe’s contents repeating in a crystalline pattern, like a hall of mirrors but with no reflection. Curved Spaces is intended for undergraduates and graduate students studying 3‑manifolds, and has also found use as a research tool in topology and cosmology. Recreational math enthusiasts may instead prefer Torus Games, which offers 3D Mazes and 3D Tic-Tac-Toe in a variety of multi-connected 3D spaces, along with games on multi-connected 2D surfaces.

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

Curved Spaces4 screens
StarPromenade2 screens

Verdict

The call

The clearest difference is price: Curved Spaces at Free against StarPromenade's $0.99. StarPromenade's advantage is update cadence (every 2 months vs every 5 months). On ads, in-app purchases, 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

CostPrice · In-app purchases · Ads · Monetization

Curved Spaces 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

Curved Spaces ships an update every 5 months, StarPromenade every 2 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

Scorecard2 real differences · 8 level
Curved Spaces versus StarPromenade: the parameters behind the verdict, then further details
ParameterCurved SpacesStarPromenade
PriceFree — better$0.99
Rating4.8 (26 ratings) — better—
Positive reviews92.3% of reviews—
Number of ratings26 — better—
Update frequencyEvery 5 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS14.013.5 — better
Further details — not scored
Size11 MB2 MB
Age rating4+4+
DeveloperJeff WeeksTakao Akatsu

In-app purchases

None

Curved Spaces

No in-app purchases

None

StarPromenade

No in-app purchases

Questions

Is Curved Spaces free?
Curved Spaces is free to download, with no in-app purchases.
Is StarPromenade free?
StarPromenade costs $0.99, with no in-app purchases.
Do Curved Spaces or StarPromenade have ads?
Neither Curved Spaces nor StarPromenade shows ads.
Which is updated more often, Curved Spaces or StarPromenade?
Curved Spaces ships an update every 5 months, and StarPromenade every 2 months. Most recently, Curved Spaces was updated on November 2, 2026 and StarPromenade on November 3, 2026.

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