# Fourier Series Visualiser vs Physics Questions

The clearest difference is in-app purchases: Fourier Series Visualiser at none against Physics Questions's 9. Fourier Series Visualiser also leads on ads (none vs shown). Physics Questions's advantage is update cadence (every 4 days vs every 11 months) and iOS requirement (12.0 vs 26.0). On price and device support there is nothing between them.

Both are free to download. Physics Questions sells 9 one-off in-app purchases. Fourier Series Visualiser asks for nothing beyond the download.

Fourier Series Visualiser ships an update every 11 months, Physics Questions every 4 days. The most recent releases landed on October 2, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Fourier Series Visualiser | Physics Questions |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (4 ratings)](https://appshunter.io/ios/app/fourier-series-visualiser/id1582827502/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 11 months | **Every 4 days** |
| Monetization | Free | — |
| Size | 2 MB | 20 MB |
| Requires iOS | 26.0 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Jack Finnis](https://appshunter.io/developer/1633101066) | [Michael Todd](https://appshunter.io/developer/1211079532) |

## What reviewers say

### Fourier Series Visualiser

[App page](https://appshunter.io/ios/app/fourier-series-visualiser/id1582827502)

Create intricate epicycle drawings by tracing any shape with your finger. This free app visualizes the mathematical principles behind Fourier series, allowing you to adjust coefficients for different approximations and import SVG files for unique artwork. It's perfect for students, teachers, and math enthusiasts.

**Highlights:** Draw custom shapes for epicycle generation, Adjust Fourier coefficients for approximation levels, Import SVG files for artwork transformation, Visualize complex Fourier series analysis, Share drawings with friends

**Features:** macOS Compatibility

**In-app purchases:** none


### Physics Questions

[App page](https://appshunter.io/ios/app/physics-questions/id1616961005)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Electricity Questions | $1.99 | one-time |
| Electronics Questions | $1.99 | one-time |
| Electromagnetism Questions | $1.99 | one-time |
| Force & Energy Questions | $1.99 | one-time |
| Motion Questions | $1.99 | one-time |
| Optics Questions | $1.99 | one-time |
| Radioactivity & Thermodynamics | $1.99 | one-time |
| Special Relativity Questions | $1.99 | one-time |
| Waves & Particles Questions | $1.99 | one-time |


## Frequently asked questions

### Is Fourier Series Visualiser free?

Fourier Series Visualiser is free to download, with no in-app purchases.

### Is Physics Questions free?

Physics Questions is free to download, with in-app purchases available.

### Do Fourier Series Visualiser or Physics Questions have ads?

Physics Questions shows ads; Fourier Series Visualiser does not.

### Which is updated more often, Fourier Series Visualiser or Physics Questions?

Fourier Series Visualiser ships an update every 11 months, and Physics Questions every 4 days. Most recently, Fourier Series Visualiser was updated on October 2, 2026 and Physics Questions on October 6, 2026.

---

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