GachaSimulator vs Harena
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
GachaSimulator
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"Gacha Simulator" is an app that emphasizes simple and intuitive operation. Have you ever wondered why you never seem to win anything when pulling gacha in various games? If so, try your luck with "Gacha Simulator"! ・How to Use It's very simple. From the settings screen, choose your desired probability value and tap the capsule to start testing your luck. Before you begin, you'll need to configure the following two items: ・Mode To accommodate those who don’t like tapping repeatedly, the app offers three modes: 1. Normal Mode: Tap once to pull the gacha once. You can also long-press to pull repeatedly. 2. Fast Mode: Long-press to pull gacha continuously at high speed. 3. Instant Mode: Tap once to immediately pull until you hit a win. ・Probability Value Tap the settings button on the main screen to go to the settings page, then select your desired probability from the dropdown list. After selecting, press the “register” button at the top right to complete the setup. There are 11 preset probability values by default, but if the one you want to test isn’t listed, you can create your own on the settings screen. Enter a title name and the desired probability value, then tap the “Add to Title List” button. Your custom value will then appear in the dropdown list for selection. If you no longer need a custom title, you can also delete it by selecting it from the dropdown and tapping the delete button. Set your own preferred probability and try your luck today!
Harena
Explore a dynamic sandbox with over 165 materials, including sand, water, lava, and creatures. Simulate complex reactions, manage heat and electricity, and even control a character in a vast, offline world.
- 165+ materials with unique properties
- Complex heat and reaction simulation
- Electricity and magnetism mechanics
- Wind, pressure, and airflow simulation
- Playable creatures and steerable character
- Offline play with save slots
- Multiple simulation views
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- 165 materials: sand, water, lava, acid, metals, gases, plants, creatures. 32 of them are made only by reaction - Grids up to 2048 x 1152, 2.36 million cells, every cell simulated - Heat: every material has a melting, boiling and ignition point, and latent heat - Reactions have a temperature window, and each one you find is logged in the codex - Four views: material, thermal, velocity and air flow - Electricity: wire, battery, diode, lamp, and heat, cold and wind sensors - Optics and magnetism: laser, mirror, prism, two magnets, pump - Wind and pressure: smoke, spores and ash are carried by the air - Creatures and vehicles, including a character you steer yourself - Six starting worlds, ten save slots, undo, pinch to zoom and pan. Landscape only, playable offline
Screenshots
Verdict
The clearest difference is device support: Harena at 3 against GachaSimulator's 1. Harena also leads on iOS requirement (15.0 vs 18.1). On price, ads and in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | GachaSimulator | Harena |
|---|---|---|
| Price | Free | Free |
| Rating | — | 3.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Weekly | — |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Monetization | — | Ad-supported |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 18.1 | 15.0 — better |
| Further details — not scored | ||
| Size | 23 MB | 84 MB |
| Age rating | 4+ | 4+ |
| Developer | YUSUKE KAJIWARA | SATOSHI MAEDA |
In-app purchases
GachaSimulator
No in-app purchases
Harena
No in-app purchases









