# Tone generator vs GPS TRAIL

The clearest difference is in-app purchases: GPS TRAIL at none against Tone generator's 3. GPS TRAIL also leads on ads (none vs shown). Tone generator's advantage is iOS requirement (12.0 vs 14.0). On price, update cadence and device support there is nothing between them.

Both are free to download. Tone generator sells 3 one-off in-app purchases. GPS TRAIL asks for nothing beyond the download.

Tone generator ships an update every 5 months, GPS TRAIL every 4 months. The most recent releases landed on October 19, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Tone generator | GPS TRAIL |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (152 ratings)](https://appshunter.io/ios/app/tone-generator/id457003837/reviews)** | — |
| Number of ratings | **152** | — |
| Positive reviews | 67.1% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Every 4 months** |
| Monetization | Free with in-app purchases | — |
| Size | 27 MB | 62 MB |
| Requires iOS | **12.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [michael heinz](https://appshunter.io/developer/292745639) | [Daniel Chavarria Ospina](https://appshunter.io/developer/1579035297) |

## What reviewers say

### Tone generator

[App page](https://appshunter.io/ios/app/tone-generator/id457003837)

Create various periodic signals with adjustable frequency and amplitude for testing electronic circuits or tuning instruments. Features include a metronome, a real-time tuner, and options for generating different noise types and tone sequences. It also offers unique features for hearing tests and party games.

**Highlights:** Generate periodic signals, Adjustable frequency and amplitude, Integrated instrument tuner, Metronome for practice, Hearing ability tests, Generate white/pink noise, Create tone sequences

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Extra-Feature 1 | $1.99 | one-time |
| No advertising | $1.99 | one-time |
| Upgrade to full version | $3.99 | one-time |

**What reviewers like**

- 🚀 Works every time!
- 🚀 Awesome application for generating tones and studying sound
- 👍 Very useful
- 👍 Genius
- 👍 Great app to make your tones

**What reviewers complain about**

- 🐛 Doesn't go lower than 10hz
- 🔍 Ruined by ads
- 🔍 Way too many ads
- 🔍 Crashes before I can export even though I paid for the feature
- 🔍 Fake app. Buying the upgrade doesn't do anything. There is no support. You can't export like it says you can. It's a scam.

**Reported bugs**

- Doesn't go lower than 10hz
- Crashes before I can export even though I paid for the feature
- Fake app. Buying the upgrade doesn't do anything. There is no support. You can't export like it says you can. It's a scam.
- app is modified
- No tone

**Requested features**

- Wish I had a manual  that explains a couple functions
- More precise way to select the frequency
- Playing of multiple tomes
- Manually enter a frequency
- More than one voice


### GPS TRAIL

[App page](https://appshunter.io/ios/app/gps-trail/id1660396798)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Tone generator free?

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

### Is GPS TRAIL free?

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

### Do Tone generator or GPS TRAIL have ads?

Tone generator shows ads; GPS TRAIL does not.

### Which is updated more often, Tone generator or GPS TRAIL?

Tone generator ships an update every 5 months, and GPS TRAIL every 4 months. Most recently, Tone generator was updated on October 19, 2026 and GPS TRAIL on October 8, 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.*