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Android Apps > Simulation > ReactionLab 2 - Sandbox
App profile & analytics · Simulation · Data updated 2026-09-25
ReactionLab 2 - Sandbox icon

ReactionLab 2 - Sandbox

by HF_Games · $3.49 · Version 1.6.0

“Ready to let your inner mad scientist shine?” the developer's tagline

Availability On Google Play since July 2014 ↗
Rating on Google Play
4.44/5
889 ratings
At a glance AppBrain's trailer of this app, made from our data
Rating
4.44
889 reviews
Total installs
13
thousand
Installs, last 30 days
5
Best rank
–
not in the top lists
Last updated
September 2, 2015
1.6.0
AppBrain's verdict EstablishedWell rated

ReactionLab 2 - Sandbox has 13 thousand installs. Users rate it well: 4.4 stars from 889 ratings.

ReactionLab 2 - Sandbox is made and published by HF_Games. AppBrain is an independent app data site and isn't affiliated with HF_Games. The app name, icon, screenshots and description belong to HF_Games and are shown as published on Google Play.

About ReactionLab 2 - Sandbox

ReactionLab 2 - Sandbox is a simulation app developed by HF_Games.

Install Statistics

ReactionLab 2 - Sandbox has been installed 13 thousand times. In the last 30 days, the app was installed 5 times.

User Ratings

ReactionLab 2 - Sandbox is rated 4.44 out of 5 stars. The rating is based on 890 ratings.

App Information

ReactionLab 2 - Sandbox costs $3.49. The app size is 956.17 kB. The latest version available is 1.6.0. The last update was on September 2, 2015.

Technical Requirements

ReactionLab 2 - Sandbox requires Android 2.3.3+ or higher. The app has a content rating of Everyone. The app has been available on Google Play since July 2014.

Description by HF_Games (from Google Play)
Draw elements onto the canvas and watch them interact in real time!

With 80+ elements, hundreds of different particle types, and nearly 140 achievements to attain. There are endless creative possibilities and undiscovered combinations. Try to find every reaction, or just build something awesome; it's up to you!

⚗️ Features:
- Massive reactions list and over 80 elements
- Freely pause and rewind time
- Zoom tool with minimap
- Save creations locally or share them with others online

🌟 You Should Know:
- No ads or in-app purchases
- Tiny 1MB install size
- Runs smoothly on any device
- Only permission used is 'network', for the share feature

Recent changes:
Ver 1.6.0:
- Added 12 new elements and 21 new reactions.
- UI and animation improvements.
- Improved support for very high resolution displays.
- Performance improvements.
- Minor bug fixes.

Ver 1.5.0:
- Added 3 new elements and 8 new reactions.

[More detailed changelog available at: http://reactionlab.hforsyth.com]
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App Performance Report

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Screenshots

ReactionLab 2 - Sandbox Screenshot 1 of 9
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ReactionLab 2 - Sandbox Screenshot 5 of 9
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ReactionLab 2 - Sandbox Screenshot 7 of 9
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ReactionLab 2 - Sandbox Screenshot 9 of 9
Screenshots by HF_Games, from the Google Play listing
Official page on Google Play

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Google Play Rating history and histogram

Rating history
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590
200
34
16
43

Installs over time

Installs over time
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ReactionLab 2 - Sandbox has been installed 13 thousand times. Over the past 30 days, it has been installed 5 times.

Changelog of ReactionLab 2 - Sandbox

Show changelog

Developer information for HF_Games

HF_Games

hunter@hforsyth.com

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Comments on ReactionLab 2 - Sandbox for Android

★★★★★ Not a bad pixel game. It could definitely use some updates though, the gui could be more descriptive and in depth. For example the share tab could have a search bar to look for specific levels, maybe a filter button. You could add more tools, like a clone tool (not the clone emitter) that can copy pixels you drag your finger over, then a drag tool to drag pixels around the screen to make reactions easier (and more fun), and an identify tool (in case we can't figure out what type a pixel is)
★★★★★ A really cool little app. It takes barely storage and is overall a good little app. I suggest adding more elements, possibly add some kind of pandemic, even though there is already a plague. I give it 5 Stars, well done!
★★★★★ This app is amazing 👌 so I 100 percent recommend downloading it but I'd Like it even more if they'd add liquid nitrogen (Best game ever!!!!!!)
★★☆☆☆ There are better particle physics games out there. This one has too small a field to really do anything interesting, and many of its elements do not behave the way one would assume they should.
★★☆☆☆ Fun for 99 cents on sale, that's it. The developer seems to have discontinued updates since 2015. The community still uploads plenty of creations to see. Only problem, which is INCREDIBLY bad, is the only way to find creations is to browse pages of creations by date. No way to look anything up. No favorites to save to go back to. Just start at the most recent and click click click backwards through history. Quite awful, and almost defeats the purpose of having a community.
★★☆☆☆ Needs more elements that are actually on the periodic table.

Google Play Rankings for ReactionLab 2 - Sandbox

This app is not ranked

Technologies used by ReactionLab 2 - Sandbox

1 permissions
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Frequently asked questions about ReactionLab 2 - Sandbox

Is ReactionLab 2 - Sandbox free?

No. ReactionLab 2 - Sandbox costs $3.49 on Google Play.

Is ReactionLab 2 - Sandbox still available?

Yes. ReactionLab 2 - Sandbox is on Google Play, and the last update we saw was on September 2, 2015.

Does ReactionLab 2 - Sandbox contain ads?

No. Google Play does not list ReactionLab 2 - Sandbox as containing ads.

What Android version does ReactionLab 2 - Sandbox require?

ReactionLab 2 - Sandbox runs on Android 2.3.3 and higher.

How large is ReactionLab 2 - Sandbox?

ReactionLab 2 - Sandbox is 956.17 kB.

Is ReactionLab 2 - Sandbox suitable for children?

Google Play rates the content of ReactionLab 2 - Sandbox as suitable for everyone.

How many times has ReactionLab 2 - Sandbox been installed?

Google Play lists 10,000+ installs for ReactionLab 2 - Sandbox.

How do people rate ReactionLab 2 - Sandbox?

ReactionLab 2 - Sandbox scores 4.44 out of 5 stars, from 889 ratings on Google Play.

Who made ReactionLab 2 - Sandbox?

ReactionLab 2 - Sandbox was developed by HF_Games. It is listed in the simulation category on Google Play.

What are the best alternatives to ReactionLab 2 - Sandbox?

People looking at ReactionLab 2 - Sandbox also look at these simulation apps: SandBox: Powder Simulator, Sandbox Powder Alchemy Element, Sandbox Elements: 2D Physics, Chemistry Cool, Pixie Dust - Sandbox.

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