Comparison

topological gate vs ViscousJoukowski

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

Head to head
About

topological gate

Features
Read full description

This app introduces topological quantum gate. You can have some understanding for topological gate.

About

ViscousJoukowski

Features
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Are you interested in fluid dynamics? Viscous Joukowski simulates the flow around a Joukowski airfoil by solving the two-dimensional incompressible Navier–Stokes equations directly on your device. For teachers, students, and curious aerodynamicists, it provides an interactive way to explore how viscosity changes lift, drag, pressure, boundary layers, separation, and wake formation. Watch vorticity, speed, pressure, and streamlines evolve around the airfoil. Change the angle of attack, thickness, and camber by dragging directly on the flow field, or use precision controls. Adjust the Reynolds number to explore steady flow, separated wakes, starting vortices, and vortex shedding. Surface-pressure curves and aerodynamic-force estimates update as the simulation develops. The app also includes the classical analytical Joukowski potential-flow solution. Overlay it on the computed viscous pressure distribution to see where the ideal textbook model agrees with—or departs from—the Navier–Stokes result. In the potential solution, circulation is selected using the Kutta condition; in the viscous simulation, circulation and the wake develop dynamically from the no-slip flow. All calculations run locally using Apple MLX and GPU-accelerated Fourier methods. No server, account, or cloud computation is required.

Screenshots

topological gate2 screens
ViscousJoukowski4 screens

Verdict

The call

topological gate and ViscousJoukowski are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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.

ScorecardNo meaningful differences
topological gate versus ViscousJoukowski: the parameters behind the verdict, then further details
Parametertopological gateViscousJoukowski
PriceFreeFree
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad — betteriPhone
Requires iOS17.617.0 — better
Further details — not scored
Size6 MB16 MB
Age rating4+4+
DeveloperSungjun KimManneTroll Solutions

In-app purchases

None

topological gate

No in-app purchases

None

ViscousJoukowski

No in-app purchases

Questions

Is topological gate free?
topological gate is free to download, with no in-app purchases.
Is ViscousJoukowski free?
ViscousJoukowski is free to download, with no in-app purchases.
Do topological gate or ViscousJoukowski have ads?
Neither topological gate nor ViscousJoukowski shows ads.

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