Comparison

Grav Box vs Formalhaut Yards

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

Head to head
About

Grav Box

Control gravity with a tap and hold to manipulate objects. Customize their appearance, explore dynamic physics, and engage in arcade challenges with leaderboards and achievements.

Highlights
  • Tap and hold to control gravity
  • Customize grav colors and emojis
  • Dynamic backgrounds and physics effects
  • Arcade mode with achievements
  • Global leaderboards
  • In-game events like black holes
Features
Read full description

Grav Box places gravity at your fingertips. Tap and hold on the screen to control the gravitational field around your gravs and manipulate them in limitless ways. Customize your entire experience by setting gravs to any color or emoji, explore dynamic backgrounds and physics effects, and even modify the effects of gravity itself. With custom preferences set, head to the arcade to unlock achievements and compete against global leaderboards. Be prepared for black holes, gravitational shifts, and many other in-game events that will impact your gameplay.

About

Formalhaut Yards

Design and save custom starships for a science fiction role-playing game. This tool utilizes official rulebooks to generate ships, allowing for detailed parameter editing and error checking. It also includes databases for computer programs and small craft.

Highlights
  • Create and store starships
  • Utilizes official rulebooks
  • Editable ship parameters
  • Error condition notifications
  • Databases for programs and small craft
Features
Read full description

This app lets you create and store a collection of starships for Fantasy Games Unlimited's Space Opera science fiction role-playing game. Ships are generated using the rules in the Volume 2 rule book, modified for military starships published in the Seldon's Compendiums. All parameters may be edited and error conditions are noted. The app includes databases of computer programs and small craft from the various rule books. The logotype is a Registered Trademark of Fantasy Games Unlimited used with FGU’s permission.

Screenshots

Grav Box4 screens
Formalhaut Yards4 screens

Verdict

The call

The clearest difference is in-app purchases: Formalhaut Yards at none against Grav Box's 10. Formalhaut Yards also leads on ads (none vs shown). Grav Box's advantage is ratings volume (26 vs 1). On price, rating, review sentiment and update cadence 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. Grav Box sells 10 one-off in-app purchases. Formalhaut Yards asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Formalhaut Yards holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Grav Box has 26 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 96% of Grav Box's written reviews are positive against 100% of Formalhaut Yards's.

UpkeepUpdate frequency

Grav Box ships an update every 5 months, Formalhaut Yards every 8 months. The most recent releases landed on November 2, 2026 and November 4, 2026 respectively.

Scorecard4 real differences · 6 level
Grav Box versus Formalhaut Yards: the parameters behind the verdict, then further details
ParameterGrav BoxFormalhaut Yards
PriceFreeFree
Rating4.8 (26 ratings)5.0 (1 ratings) — better
Positive reviews96.0% of reviews100.0% of reviews — better
Number of ratings26 — better1
Update frequencyEvery 5 months — betterEvery 8 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS14.014.0
Further details — not scored
Size10 MB104 MB
Age rating4+4+
DeveloperGianluca CapraroArt Gorski

Customer experience

Grav Box

All ratings26 ratings
Positive96.2%
Neutral0.0%
Negative3.8%
Written reviews25 reviews
Positive96.0%
Neutral0.0%
Negative4.0%

Formalhaut Yards

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

10 purchases

Grav Box

One-time10
  • Gold Blocks (100) Pack$0.99
  • Light Portal$0.99
  • Dark Portal$0.99
Show 7 more
  • Grav Box$0.99
  • Midnight$0.99
  • Daybreak$0.99
  • Beach$0.99
  • Jungle$0.99
  • Mist$0.99
  • Gold Blocks (1000) Pack$4.99
None

Formalhaut Yards

No in-app purchases

Questions

Is Grav Box free?
Grav Box is free to download, with in-app purchases available.
Is Formalhaut Yards free?
Formalhaut Yards is free to download, with no in-app purchases.
Which has better reviews, Grav Box or Formalhaut Yards?
Formalhaut Yards is rated higher. Grav Box averages 4.8 out of 5 from 26 ratings, while Formalhaut Yards averages 5.0 from 1 ratings.
Do Grav Box or Formalhaut Yards have ads?
Grav Box shows ads; Formalhaut Yards does not.
Which is updated more often, Grav Box or Formalhaut Yards?
Grav Box ships an update every 5 months, and Formalhaut Yards every 8 months. Most recently, Grav Box was updated on November 2, 2026 and Formalhaut Yards on November 4, 2026.

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