Comparison

Galaxy3D vs Ear Engineer Mobile

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

Head to head
About

Galaxy3D

Relive classic arcade space shooter experiences in a 3D environment. Pilot your ship, destroy waves of alien enemies, and survive the onslaught. Simple tap and slide controls make for intuitive gameplay.

Highlights
  • 3D arcade space shooter
  • Classic gameplay revival
  • Destroy alien waves
  • Simple tap and slide controls
  • Single missile on screen
Features
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First of All!!! Controls: - Slide LEFT/RIGHT to move Left/Right your ship. - Tap to Fire. Do you like the classics? How much money have you spent in the arcade games? Want to relive the past? Galaxy3DHD takes you to the past, relive your first arcade play of your life in 3D. Your mission destroy all Aliens, try to survive of enemy ships waves. Be careful you can only have one missile on the screen. Please Enjoy!!

About

Ear Engineer Mobile

Features
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YOUR EARS ARE THE INSTRUMENT Every plugin, every monitor, every room you will ever work in sits downstream of one thing: your hearing. Ear Engineer trains it. HOW IT WORKS Pink noise plays once, for five seconds. Somewhere inside it a single ISO third-octave band is lifted by 6 dB: the noise fades in, the boost swells and settles back, the noise fades out. Then the room goes quiet and the question appears. Which band was it? One replay per round. Ten rounds per set. Score 8 or better and you move up. FIVE LEVELS, FROM OBVIOUS TO BRUTAL Level 1 offers three options a decade apart, 100 Hz against 1 kHz against 10 kHz. You will get it right, and that is the point. You are calibrating, not guessing. Then the options close in. Two octaves. One octave. Two thirds of an octave. And finally Pro, where all 31 ISO bands sit on screen and the boost could be any one of them. The options are never the same twice. Every round draws a fresh ladder from a random anchor, so level 1 asks 100 Hz / 1 kHz / 10 kHz on one round and 80 / 800 / 8000 on the next. You learn the frequencies, not the layout of the buttons. THE DETAILS ARE THE PRODUCT The filter Q never changes. It is a one-third-octave bell on every level and every round, narrow enough that 1 kHz and 1.25 kHz stay clearly tellable apart. Bandwidth is never part of the test, so you only ever train one variable at a time. The analyser does not cheat. It shows the material breathing across the spectrum, but it is tapped before the equaliser, so it can never draw the bump and hand you the answer. The moment you answer, it draws the real filter curve exactly where the boost was. That is when you see what you just heard. The noise plays once, not on a loop. One pass, one decision, the way it works when a client is sitting behind you. LOW BANDS, ON OR OFF Training on the move without headphones? Switch the low bands off and everything at 100 Hz and below leaves the game, so a phone speaker never costs you a point. Switch them back on with headphones and the full 20 Hz to 20 kHz grid is in play. BUILT FROM YEARS OF TEACHING IT This is not a toy built around a random number generator. It is a training method that has been run with real students for years, put into an app: the same intervals, the same progression, the same insistence that you name the band rather than wave at the general area. PROGRESS YOU CAN SEE Every level remembers your best set, so you can watch the day 250 Hz stops being a coin toss and starts being obvious. Every level is unlocked from the start, so you can drop into Pro whenever you feel like being humbled. FOR MIXERS, LIVE, MASTERING, POST AND BROADCAST Anyone who has swept a parametric hunting for a resonance knows the feeling of finding it by accident. This is how you stop doing that. A few minutes a day and you start reaching for the right band first, on instinct, while everyone else is still sweeping. Your ears are the one piece of gear you cannot upgrade. Maintain them. No ads. No account. No internet connection required.

Screenshots

Galaxy3D4 screens
Ear Engineer Mobile3 screens

Verdict

The call

The clearest difference is price: Galaxy3D at $1.99 against Ear Engineer Mobile's $9.99. Ear Engineer Mobile's advantage is update cadence (weekly vs every 38 months). On ads, in-app purchases, device support 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

Galaxy3D costs $1.99 and Ear Engineer Mobile $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Galaxy3D ships an update every 38 months, Ear Engineer Mobile weekly. The most recent releases landed on October 24, 2026 and October 29, 2026 respectively.

Scorecard2 real differences · 8 level
Galaxy3D versus Ear Engineer Mobile: the parameters behind the verdict, then further details
ParameterGalaxy3DEar Engineer Mobile
Price$1.99 — better$9.99
Rating5.0 (2 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 38 monthsWeekly — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS14.0 — better15.0
Further details — not scored
Size2 MB43 MB
Age rating4+4+
DeveloperIvan Cerra de Castrosebastian rivas

In-app purchases

None

Galaxy3D

No in-app purchases

None

Ear Engineer Mobile

No in-app purchases

Questions

Is Galaxy3D free?
Galaxy3D costs $1.99, with no in-app purchases.
Is Ear Engineer Mobile free?
Ear Engineer Mobile costs $9.99, with no in-app purchases.
Do Galaxy3D or Ear Engineer Mobile have ads?
Neither Galaxy3D nor Ear Engineer Mobile shows ads.
Which is updated more often, Galaxy3D or Ear Engineer Mobile?
Galaxy3D ships an update every 38 months, and Ear Engineer Mobile weekly. Most recently, Galaxy3D was updated on October 24, 2026 and Ear Engineer Mobile on October 29, 2026.

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