# StringVest vs Hoverophone

The clearest difference is price: Hoverophone at Free against StringVest's $0.99. Hoverophone also leads on update cadence (every 10 days vs every 2 months). StringVest's advantage is iOS requirement (15.0 vs 17.6). On ads, in-app purchases and device support there is nothing between them.

Hoverophone is free to download; StringVest costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

StringVest ships an update every 2 months, Hoverophone every 10 days. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | StringVest | Hoverophone |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | — | **[4.3 (3 ratings)](https://appshunter.io/ios/app/hoverophone-theremin-synth/id6781463406/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 10 days** |
| Monetization | — | Free |
| Size | 15 MB | 13 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Philip Vincent](https://appshunter.io/developer/1890469991) | [Maxim Oransky](https://appshunter.io/developer/1639941241) |

## What reviewers say

### StringVest

[App page](https://appshunter.io/ios/app/stringvest/id6761650269)

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

**In-app purchases:** none


### Hoverophone

[App page](https://appshunter.io/ios/app/hoverophone-theremin-synth/id6781463406)

This app reimagines the theremin for your iPhone, allowing you to play music by waving your hands in the air without touching the screen. It offers a polyphonic synthesizer with various sound options and microtonal capabilities for unique musical exploration.

**Highlights:** Air-based theremin playing with front camera hand tracking, Polyphonic synthesizer with multiple voice options, Microtonal keyboard with 12-TET or 24-TET quarter tones, Stack up to twelve notes by pinning voices, Continuous pitch glide and volume control, Fully offline functionality

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

**In-app purchases:** none


## Frequently asked questions

### Is StringVest free?

StringVest costs $0.99, with no in-app purchases.

### Is Hoverophone free?

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

### Do StringVest or Hoverophone have ads?

Neither StringVest nor Hoverophone shows ads.

### Which is updated more often, StringVest or Hoverophone?

StringVest ships an update every 2 months, and Hoverophone every 10 days. Most recently, StringVest was updated on October 27, 2026 and Hoverophone on October 24, 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.*