# SmartPIV vs GraphMath

The clearest difference is update cadence: GraphMath at fortnightly against SmartPIV's every 7 months. GraphMath also leads on ratings volume (12 vs 2). SmartPIV's advantage is iOS requirement (13.0 vs 15.6). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for SmartPIV against 5.0 for GraphMath. That said, the two scores are not equally well evidenced: GraphMath has 12 ratings behind it against 2, so its average is the more settled of the two.

SmartPIV ships an update every 7 months, GraphMath fortnightly. The most recent releases landed on September 17, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | SmartPIV | GraphMath |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/smartpiv/id1471308387/reviews) | [5.0 (12 ratings)](https://appshunter.io/ios/app/graphmath/id1582680101/reviews) |
| Number of ratings | 2 | **12** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Fortnightly** |
| Monetization | Free | Free |
| Size | 35 MB | 6 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Patrick Maeder](https://appshunter.io/developer/1122594621) | [Yuri Morozov](https://appshunter.io/developer/1582368813) |

## What reviewers say

### SmartPIV

[App page](https://appshunter.io/ios/app/smartpiv/id1471308387)

This application allows users to determine flow velocity in a PIV setup, replacing traditional camera and analysis software. It visually displays current analysis results through velocity vectors for easy understanding of flow development. Designed to be simple, mobile, and convenient, it offers a low-cost and intuitive alternative for hands-on training.

**Highlights:** Determine flow velocity in PIV setups, Visualize flow with velocity vectors, Replaces traditional camera and analysis software, Low-cost and intuitive application, Mobile and convenient for hands-on training

**Features:** macOS Compatibility

**In-app purchases:** none


### GraphMath

[App page](https://appshunter.io/ios/app/graphmath/id1582680101)

This powerful graphing calculator visualizes complex mathematical functions in 2D and 3D. Explore Cartesian, cylindrical, and spherical coordinates with animated graphs and detailed tables of points. It offers features like derivatives, integrals, and intersections for comprehensive mathematical analysis.

**Highlights:** 3D graphing (Cartesian, Cylindrical, Spherical), 2D graphing (Cartesian, Polar, Parametric), Animated graphs, Detailed point tables, Derivative and integral calculations, Intersection point finding, Undo/redo functionality

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SmartPIV free?

SmartPIV is free to download, with no in-app purchases.

### Is GraphMath free?

GraphMath is free to download, with no in-app purchases.

### Which has better reviews, SmartPIV or GraphMath?

SmartPIV and GraphMath are both rated 5.0 out of 5 on the App Store, from 2 and 12 ratings respectively.

### Do SmartPIV or GraphMath have ads?

Neither SmartPIV nor GraphMath shows ads.

### Which is updated more often, SmartPIV or GraphMath?

SmartPIV ships an update every 7 months, and GraphMath fortnightly. Most recently, SmartPIV was updated on September 17, 2026 and GraphMath on October 5, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*