# KURIOFIT vs Tuning Fork Studio

The clearest difference is in-app purchases: KURIOFIT at none against Tuning Fork Studio's 3. KURIOFIT also leads on iOS requirement (13.0 vs 15.0). Tuning Fork Studio's advantage is update cadence (every 2 weeks vs every 8 months). On price, ads and device support there is nothing between them.

Both are free to download. Tuning Fork Studio sells 3 in-app purchases, starting at $0.99 per month. KURIOFIT asks for nothing beyond the download.

KURIOFIT ships an update every 8 months, Tuning Fork Studio every 2 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | KURIOFIT | Tuning Fork Studio |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/tuning-fork-studio/id6751743458/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 2 weeks** |
| Monetization | **Free** | Freemium |
| Size | 40 MB | 35 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Koninklijke Jumbo B.V](https://appshunter.io/developer/1621483630) | [丽俨 龚](https://appshunter.io/developer/1816613061) |

## What reviewers say

### KURIOFIT

[App page](https://appshunter.io/ios/app/kuriofit/id6504661932)

This app connects your Kurio Smart Watch to your iPhone, allowing you to customize watch faces and access various health and activity tracking features. Monitor your sleep, heart rate, and daily steps with integrated tools.

**Highlights:** Smart Watch synchronization, Customizable watch faces, Activity tracker, Sleep monitor, Heart rate monitor, Mini-games

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

**In-app purchases:** none


### Tuning Fork Studio

[App page](https://appshunter.io/ios/app/tuning-fork-studio/id6751743458)

Generate fundamental audio waveforms like sine, square, triangle, and sawtooth with precise control over frequency, amplitude, phase, and harmonics. Export high-quality audio for music production, sound design, and acoustic testing.

**Highlights:** Sine, square, triangle, sawtooth wave generation, Precise frequency control (A4 standard, custom Hz), Amplitude, phase, and multi-harmonic overlay, Real-time complex sound synthesis, High-quality audio export, Music production and sound design tool

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $0.99 | per month |
| Yearly | $5.99 | per year |
| Lifetime | $9.99 | one-time |


## Frequently asked questions

### Is KURIOFIT free?

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

### Is Tuning Fork Studio free?

Tuning Fork Studio is free to download, with in-app purchases available.

### Do KURIOFIT or Tuning Fork Studio have ads?

Neither KURIOFIT nor Tuning Fork Studio shows ads.

### Which is updated more often, KURIOFIT or Tuning Fork Studio?

KURIOFIT ships an update every 8 months, and Tuning Fork Studio every 2 weeks. Most recently, KURIOFIT was updated on October 24, 2026 and Tuning Fork Studio 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.*