Comparison

Water Rocket Fun vs WATER Mob

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

Head to head
About

Water Rocket Fun

Explore the physics of water rockets and optimize launch parameters for maximum altitude. This simulator uses advanced fluid mechanics and thermodynamics for accurate predictions, with a user-friendly interface for students and enthusiasts.

Highlights
  • Physics simulation
  • Launch optimization
  • Accurate apogee predictions
  • User-friendly interface
  • Rocket design aids
  • Launcher blueprints
  • Altitude calculator
Features
Read full description

This program can help students and rocketeers understand the physics of water rockets and how to optimize their water rocket launches to obtain the highest apogees. The interface is designed to be easy to use and understand. But don't be fooled by the program's simple layout, few if any of the other simulators you may find are as accurate. Under the hood this program is pretty sophisticated and thorough. The methodology includes both incompressible and compressible fluid mechanics along with a fair amount of thermodynamics and numerical methods to provide accurate water rocket apogee predictions. Check out the excellent correlation between simulation and sophisticated high speed digital camera results shown (see graphs) and at our web site. Software Includes: * Easy input of rocket launch variables * Rapid analysis of rocket launch * Generation of performance data plots * Rocket design aids & experiments * Simple launcher design blueprints * Altitude calculator

About

WATER Mob

Features
Read full description

WATER Mobile can load and run a WATM module (a .wasm file follows spec) for learning and networking purpose. Current version doesn't support load and run your own WATM module yet, but it can load and run several examples as we provided in the app. To use it for now, first you go to the "Setup" tab and choose a "WATM" module that you want to play with, specify the "Network", and put in an remote network address you want to connect to as address:port (an example for the setup can be: choose "Plain v0 (TinyGo)" as the WATM, choose "TCP" as the Network, and put "google.com:443" in to the address (although this address will give you an Dial Error in the end, since they are not design to wait for random packages, so if you want something that stays connected, try host your own listener as instructed below)), then click save. Then you can switch to the "WATER" tab and press "Dial WATER!" and you are good to go! For developers, if you'd like to see WATER Mob work in details, open the Console app on a Mac and connects to your iPhone, or just run the app on your Mac (with M chips), and see filter with "Runner" in your console to see the whole connecting + package transfer process. And if you'd like to have your own end point to receive and send packages between the WATER app, run 'nc -l port-you-want-to-listen-on' (e.g. nc -l 4444) on your terminal, and then specify the address box in the WATER app differently(to be the one for your own end point) and then press "Dial"!

Screenshots

WATER Mob2 screens

Verdict

The call

The clearest difference is update cadence: WATER Mob at every 2 days against Water Rocket Fun's every 21 months. WATER Mob also leads on device support (3 vs 1). On price, ads, in-app purchases and iOS requirement 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Water Rocket Fun ships an update every 21 months, WATER Mob every 2 days. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.

Scorecard2 real differences · 8 level
Water Rocket Fun versus WATER Mob: the parameters behind the verdict, then further details
ParameterWater Rocket FunWATER Mob
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 21 monthsEvery 2 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPadiPhone, iPad, iPod — better
Requires iOS13.0 — better14.5
Further details — not scored
Size19 MB38 MB
Age rating4+4+
DeveloperSeeds SoftwareErik Chi

In-app purchases

None

Water Rocket Fun

No in-app purchases

None

WATER Mob

No in-app purchases

Questions

Is Water Rocket Fun free?
Water Rocket Fun is free to download, with no in-app purchases.
Is WATER Mob free?
WATER Mob is free to download, with no in-app purchases.
Do Water Rocket Fun or WATER Mob have ads?
Neither Water Rocket Fun nor WATER Mob shows ads.
Which is updated more often, Water Rocket Fun or WATER Mob?
Water Rocket Fun ships an update every 21 months, and WATER Mob every 2 days. Most recently, Water Rocket Fun was updated on October 24, 2026 and WATER Mob on October 27, 2026.

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