# Touch Waves vs Periodic

The clearest difference is update cadence: Periodic at every 5 weeks against Touch Waves's every 5 months. Periodic also leads on price ($1.99 vs $3.99) and iOS requirement (15.1 vs 26.0). On ads, in-app purchases and device support there is nothing between them.

Touch Waves costs $3.99 and Periodic $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Touch Waves ships an update every 5 months, Periodic every 5 weeks. The most recent releases landed on October 13, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Touch Waves | Periodic |
| --- | --- | --- |
| Price | $3.99 | **$1.99** |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/touch-waves/id347672384/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 63.2% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 5 weeks** |
| Monetization | Paid | — |
| Size | 49 MB | 31 MB |
| Requires iOS | 26.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Xavier Daxhelet](https://appshunter.io/developer/339056993) | [Om Prakash Chapagain](https://appshunter.io/developer/1618620262) |

## What reviewers say

### Touch Waves

[App page](https://appshunter.io/ios/app/touch-waves/id347672384)

Explore wave physics with interactive animations and detailed explanations. This app covers vibrations, waves on strings, acoustics, and optics, making complex concepts visual and understandable for students and educators.

**Highlights:** Wave physics concepts, Interactive animations (2D & 3D), Basic equations, Classroom projection support, Covers vibration, acoustics, optics, Detailed subject list

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Periodic

[App page](https://appshunter.io/ios/app/periodic-table-elements-pro/id1628646759)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Touch Waves free?

Touch Waves costs $3.99, with no in-app purchases.

### Is Periodic free?

Periodic costs $1.99, with no in-app purchases.

### Do Touch Waves or Periodic have ads?

Neither Touch Waves nor Periodic shows ads.

### Which is updated more often, Touch Waves or Periodic?

Touch Waves ships an update every 5 months, and Periodic every 5 weeks. Most recently, Touch Waves was updated on October 13, 2026 and Periodic on October 30, 2026.

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