Comparison

LSPIV vs WingFlow

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

Head to head
About

LSPIV

This application enables large-scale particle image velocimetry (LSPIV) using a smartphone. It offers a non-intrusive method for measuring water surface velocity distribution in both field and lab settings. The app provides instant ortho-rectification of captured images without needing ground control points.

Highlights
  • Large-scale particle image velocimetry
  • Water surface velocity measurement
  • Non-intrusive velocimetry
  • Smartphone implementation
  • Instant ortho-rectification
  • No GCPs required
Features
Read full description

LSPIV (large-scale particle image velocimetry) is an image-based method for measuring velocity distribution on the water surface. Applications of LSPIV have been increasing for both field and laboratory experiments as unique and powerful tools for non-intrusive velocimetry using conventional imaging devices and specialized image processing software. This app utilizes a smartphone to implement LSPIV. By innovatively combining the sensors embedded in smartphones, the images captured with them can be intrinsically and instantly ortho-rectified without making recourse to GCPs. The app was developed under support by the River Fund in charge of the Foundation of River and Watershed Environment Management (FOREM), Japan; Grant-in-Aid for Young Scientists (B); and the Research Fund of Japan Institute of Country-ology and Engineering.

About

WingFlow

Features
Read full description

WingFlow is a mini, interactive Computational Fluid Dynamics (CFD) app for iOS that lets you explore how wings and airfoils behave in flight. Selected as a winner of Apple’s 2026 Swift Student Challenge, WingFlow makes aerodynamic concepts visual, interactive, and easy to understand. Features: • Choose from popular airfoil designs including: Trainer (based on the Cessna 172) Glider Utility (inspired by STOL aircraft) • Design your own airfoils in the Custom Wing Builder: Adjust camber, chord, and thickness See changes update in real time • Fine-tune simulation settings with interactive sliders: Airspeed Angle of attack Particle density (simulation load) • Watch live lift and drag gauges respond instantly to your changes • Tap tooltips (?) throughout the app to learn aerospace concepts and terminology Experiment, learn, and see the physics of flight come to life.

Screenshots

LSPIV1 screens
WingFlow3 screens

Verdict

The call

The clearest difference is iOS requirement: LSPIV at 11.0 against WingFlow's 18.1. On price, ads, in-app purchases and device support 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.

Scorecard1 real difference · 8 level
LSPIV versus WingFlow: the parameters behind the verdict, then further details
ParameterLSPIVWingFlow
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 13 months—
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS11.0 — better18.1
Further details — not scored
Size71 MB1 MB
Age rating4+4+
DeveloperRyota TsubakiLana Sambol

In-app purchases

None

LSPIV

No in-app purchases

None

WingFlow

No in-app purchases

Questions

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

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