# TuningForkPlus vs I

The clearest difference is in-app purchases: I at none against TuningForkPlus's 3. I also leads on update cadence (every 2 weeks vs every 3 months) and iOS requirement (12.0 vs 15.0). On price, ads and device support there is nothing between them.

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

TuningForkPlus ships an update every 3 months, I every 2 weeks. The most recent releases landed on October 2, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | TuningForkPlus | I |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/tuningforkplus/id6751743458/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Monetization | Freemium | — |
| Size | 3 MB | 27 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [丽俨 龚](https://appshunter.io/developer/1816613061) | [ACEBOTT](https://appshunter.io/developer/1849826945) |

## What reviewers say

### TuningForkPlus

[App page](https://appshunter.io/ios/app/tuningforkplus/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

**In-app purchases (3)**

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


### I

[App page](https://appshunter.io/ios/app/i-notepad/id6773274716)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is TuningForkPlus free?

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

### Is I free?

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

### Do TuningForkPlus or I have ads?

Neither TuningForkPlus nor I shows ads.

### Which is updated more often, TuningForkPlus or I?

TuningForkPlus ships an update every 3 months, and I every 2 weeks. Most recently, TuningForkPlus was updated on October 2, 2026 and I on October 1, 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.*