Comparison

Zero4Racer PRO vs Space Agency

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

Head to head
About

Zero4Racer PRO

Experience the thrill of drag racing with precise tilt controls and an on-screen clutch. Build and upgrade your cars, race against your own ghost, and compete on local leaderboards. Enjoy a pure drag racing simulation with no ads or tracking.

Highlights
  • Tilt and clutch controls
  • Accelerometer throttle modes
  • Driver profile creation
  • Car customization and upgrades
  • Ghost racing mode
  • Local and Game Center leaderboards
  • Tunable engine sound
Features
Read full description

Zero4Racer Pro is back. The original tilt-and-clutch drag racer returns, rebuilt for modern iOS. Same on-screen clutch button, same accelerometer throttle, same 400-metre rush from the line to the finish. Race - Tilt to feed throttle, hold the clutch button to slip the drivetrain, tap the shift lever at the right RPM and run the 400 m. - Two accelerometer-handling modes (Horizon and Vertical) for the way you actually hold the phone. - Calibrate your neutral tilt once in Options and forget about it. Choose your driver - Create your profile: pick a driver character, pick a name, race. - Free characters are always available; extra characters come with the optional Premium one-time purchase. Garage - Buy cars from a small starter catalogue, install and renew parts. - Watch the car's run count and per-part wear tick up after each race. Race against your own ghost - Pick "Best-time ghost" before a race and a marker of your fastest prior lap in the same class slides along the track next to you. - Local-first. No custom server, no uploaded replays. Sound - Tunable engine sample with pitch and gain tied to live RPM. - Gear-change and finish SFX. Volumes for engine / SFX / BGM live in Options. - Background music from your own library plays through; the app does not interrupt it. Scores - Best-time-per-class summary plus a filterable top-20 board. - Sort by best time or by latest finish. - Records persist locally and remain available offline. - Optional Apple Game Center ranking starts with the Class A / 400 m best-time board. Game Center is Apple-hosted; Zero4Racer does not run a custom leaderboard backend. PREMIUM CHARACTERS (optional) Premium Characters is a one-time in-app purchase. Buy it once and every driver character is unlocked. You pay a single time; there is no recurring charge. The purchase can be restored on the same Apple Account, including after a reinstall. All core racing gameplay is free — the purchase only unlocks additional driver characters. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.jtechs.com/privacy-policy/index.html No ads. No tracking. Local scores always work. Just the drag race. Universal landscape on iPhone, optimised for the modern screen sizes while honouring the original game's feel. (c) 2026 J-Tech Creations

About

Space Agency

Design, construct, and launch your own rockets and satellites. Build a space station and explore the solar system in this challenging simulation game for aspiring astronauts.

Highlights
  • Build rockets
  • Launch satellites
  • Create a space station
  • Explore the solar system
  • Challenging gameplay
Features
Read full description

Build rockets, launch satellites, create a space station! Do you want to build and fly your own space rockets? Of course you do! Are you a billionaire? No...that makes it tricky. Fortunately, there is a way for us non-billionaires to run our own space programme...Space Agency! * Build rockets * Launch satellites * Create a space station * Explore the solar system This is a highly challenging and complex game. Only the most talented astronauts should attempt it. Have you got the right stuff?

Screenshots

Zero4Racer PRO4 screens
Space Agency4 screens

Verdict

The call

The clearest difference is review sentiment: Space Agency at 75% against Zero4Racer PRO's 29%. Space Agency also leads on rating (4.4 vs 3.1) and ratings volume (738 vs 35). Zero4Racer PRO's advantage is price (Free vs $1.99) and update cadence (every 2 weeks vs every 2 months). On ads, in-app purchases, monetization model 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

Zero4Racer PRO is free to download; Space Agency costs $1.99 up front. Zero4Racer PRO sells 2 one-off in-app purchases and Space Agency sells 11 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Space Agency holds the better App Store score, 4.4 against 3.1. That said, the two scores are not equally well evidenced: Space Agency has 738 ratings behind it against 35, so its average is the more settled of the two. Written reviews point the same way: 29% of Zero4Racer PRO's written reviews are positive against 75% of Space Agency's.

UpkeepUpdate frequency

Zero4Racer PRO ships an update every 2 weeks, Space Agency every 2 months. The most recent releases landed on October 26, 2026 and October 29, 2026 respectively.

Scorecard6 real differences · 4 level
Zero4Racer PRO versus Space Agency: the parameters behind the verdict, then further details
ParameterZero4Racer PROSpace Agency
PriceFree — better$1.99
Rating3.1 (35 ratings)4.4 (738 ratings) — better
Positive reviews28.6% of reviews75.3% of reviews — better
Number of ratings35738 — better
Update frequencyEvery 2 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.012.0 — better
Further details — not scored
Size367 MB29 MB
Age rating4+4+
DeveloperJ-Tech Creations, Inc.Nooleus

Customer experience

Zero4Racer PRO

All ratings35 ratings
Positive45.7%
Neutral11.4%
Negative42.9%
Written reviews28 reviews
Positive28.6%
Neutral10.7%
Negative60.7%

Space Agency

All ratings740 ratings
Positive84.3%
Neutral4.3%
Negative11.4%
Written reviews369 reviews
Positive75.3%
Neutral9.5%
Negative15.2%

Bugs and requests

Zero4Racer PRO

Not enough reviews yet to summarise bugs or requests.

Space Agency

Reported bugs

5 issues
  • Sandbox mode parts not unlocking properly
  • Crashes and freezes during gameplay
  • Inability to restore purchased content
  • Glitches with certain rocket and station designs
  • Inconsistent performance on different devices

Requested features

6 requests
  • Add space shuttle functionality
  • Introduce astronauts and crew management
  • Expand the solar system with more planets and moons
  • Implement a more realistic orbital mechanics system
  • Add multiplayer and co-op capabilities
Show 1 more
  • Improve the camera and docking controls

In-app purchases

2 purchases

Zero4Racer PRO

One-time2
  • Premium Characters$0.99
  • ADs Remover package.$1.99
11 purchases

Space Agency

One-time11
  • Mission 02 Skip$0.99
  • Mission 12 Skip$0.99
  • Mission 15 Skip$0.99
Show 8 more
  • Mission 16 Skip$0.99
  • Transponder Module$0.99
  • 50 Quick Launches$1.99
  • 1000 Quick Launches$3.99
  • Nooleus X Parts Pack$3.99
  • Mission Free Unlock-All$4.99
  • Sandbox Unlock All Parts$7.99
  • Sandbox Unlock Standard Parts$7.99

Questions

Is Zero4Racer PRO free?
Zero4Racer PRO is free to download, with in-app purchases available.
Is Space Agency free?
Space Agency costs $1.99, and also offers in-app purchases.
Which has better reviews, Zero4Racer PRO or Space Agency?
Space Agency is rated higher. Zero4Racer PRO averages 3.1 out of 5 from 35 ratings, while Space Agency averages 4.4 from 738 ratings.
Do Zero4Racer PRO or Space Agency have ads?
Neither Zero4Racer PRO nor Space Agency shows ads.
Which is updated more often, Zero4Racer PRO or Space Agency?
Zero4Racer PRO ships an update every 2 weeks, and Space Agency every 2 months. Most recently, Zero4Racer PRO was updated on October 26, 2026 and Space Agency on October 29, 2026.

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