# Gravity Courier: Orbit Puzzle — Orbital puzzle in space

> Orbital puzzle in space (iPhone/iPad app by Jegeon Jung.)

- Source: https://appshunter.io/ios/app/gravity-courier-orbit-puzzle/id6777101289 (this page in markdown: same URL + `.md`)
- Developer: [Jegeon Jung](https://appshunter.io/developer/1825889536)
- Category: Games, Puzzle, Simulation
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 15.0 · 30 MB
- Languages: American English
- Released: 2026-06-11
- Data updated: 2026-08-23
- User reviews in markdown: https://appshunter.io/ios/app/gravity-courier-orbit-puzzle/id6777101289/reviews.md

## What is Gravity Courier?

You are a space delivery controller. Your only job: choose when, which way, and how hard to launch — then let gravity do the rest.

Gravity Courier is a minimalist orbital puzzle built on real physics. The Sun, planets, and moons are genuinely orbiting in real time. There is no joystick, no thrust-and-steer. You read the dance of the planets, pull back a slingshot to aim, pick the launch moment, and fire. From there, gravity alone bends your probe's path — so a straight shot will never work. Predict the curve, use a planet's pull, and arrive exactly on target.

WHY IT FEELS DIFFERENT • Real orbital mechanics — Keplerian planet motion + true n-body gravity on your probe. Deterministic, fair, and endlessly satisfying to "solve." • One decision, infinite depth — only date, direction, and thrust. Easy to grasp, hard to master. • A living solar system — Mercury to Neptune orbit at their own speeds. Change the launch date and the whole board lines up differently.

MISSIONS ACROSS THE SOLAR SYSTEM • Orbit — loop a planet or moon without escaping or crashing • Flyby & return — swing around the Moon's far side and let gravity sling you home • Landing — enter a gravity well and settle into a soft touchdown • Reach — time an interplanetary transfer to meet a moving planet where it will be • Gravity assist — skim a giant planet and steal a free push • Orbital cleanup — ram drifting space debris before it spreads

FEATURES • 90+ handcrafted missions across the Sun, Moon, Venus, Mars, Jupiter, Saturn, and the outer planets • Predicted-path preview with a closest-approach marker — line up the gap and you'll hit • Reserve a mid-flight boost on your trajectory, or fire it by hand • Star ratings reward fuel economy and fast transfers — chase that 3-star run • Replay any flight and export it as a video to share • Clean, quiet, starfield aesthetic with a calming soundtrack • 13 languages • Play offline • One-time "Remove Ads" available

No timers pushing you. No pay-to-win. Just you, the planets, and one perfect launch.

Read the orbits. Launch right. Safe orbits, courier.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| 광고제거 | $1.99 | one-time |



## Version history (last 5 releases)

### 1.10.0 — 2026-08-17

Delivery just got a whole lot more satisfying! 

- Missed by a hair? We now show how many km you were from the target — nail it on the next launch!
- All-new success celebration: stars pop one by one, your score counts up, and badges rain down — New Record, First Delivery, ONE SHOT, and delivery streaks.
- Special celebrations for Bullseye hits and completing a chapter, plus haptic feedback throughout.
- New Cosmetics Shop: spend mission-earned credits on hull paints, engine flames, trajectory colors, and a fireworks explosion — with a live preview.
- Quality-of-life polish: mission progress bar, slow-mo on orbit-zone entry, tap to skip cutscenes, and more.

### 1.8.0 — 2026-08-14

Jump straight into the action!

- On first launch, the game now takes you directly into the first mission (with tutorial) — no menus in the way. You can still back out to the home screen anytime.
- Stability and internal improvements.

### 1.7.0 — 2026-07-29

This update makes it visible *why* you succeeded — and why you got 2 stars instead of 3.

- **Flight screen shows the judging** — an orbit revolution counter, the capture zone (SOI) ring and the valid flyby region are now drawn on screen, and a reason icon marks the spot where a flight failed. You can finally tell what went wrong on the moon missions.
- **The tricky rules now come with guidance** — added rule explanations for lunar orbit insertion (1-3) and lunar flyby return (1-6). The tutorial also covers aim lock, fine-tuning, launch day, and how to search for a Venus solution.
- **Trajectory share card** — turn a successful flight into a single image card and share it. (This replaces the old video export.)
- **App size cut nearly in half** — a much lighter download and a lot less storage used.
- **Bug fix** — watching an ad no longer launches your probe immediately. You can check your aim and press launch when you're ready.

* Minor bug fixes and stability improvements.

### 1.5.1 — 2026-06-16

This update makes watching your flights smoother.

Consistent playback speed — missions used to feel like time passed at different rates; now they all run at the same speed, so every planet plays back consistently.
Fast-forward (1×/2×/4×) — change the speed right from the flight screen. Skip through long trips to far planets with a single tap.
Minor bug fixes and stability improvements.

### 1.4.0 — 2026-06-11

This update makes aiming easier and more precise.

- Added **−/+ buttons** beside the launch-date slider so you can fine-tune the launch day one day at a time (press and hold to move faster).
- **Flyby-return missions** now show the **return trajectory** in the preview — see your way back after rounding the target planet before you launch.
- Cleaned up the **aim zoom** on far-planet missions so the view stays focused on the destination orbit.

* Minor bug fixes and stability improvements.

## More apps by Jegeon Jung

- [Magic Color AI: Coloring Book](https://appshunter.io/ios/app/magic-color-ai-coloring-book/id6748463466)
- [My Trading Story](https://appshunter.io/ios/app/my-trading-story/id6766176598)
- [Shapes Drop — Merge Puzzle](https://appshunter.io/ios/app/shapes-drop-merge-puzzle/id6772424713)
- [Don't Get Caught! : Mini games](https://appshunter.io/ios/app/dont-get-caught-mini-games/id6794361277)

All apps by Jegeon Jung: https://appshunter.io/developer/1825889536

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-23.*