# Frequency Generator vs Stop Stalker

The clearest difference is review sentiment: Stop Stalker at 100% against Frequency Generator's 50%. Stop Stalker also leads on in-app purchases (none vs 2) and update cadence (every 5 days vs every 4 weeks). Frequency Generator's advantage is price (Free vs $5.99). On ads, device support and iOS requirement there is nothing between them.

Frequency Generator is free to download; Stop Stalker costs $5.99 up front. Frequency Generator sells 2 in-app purchases, starting at $4.99 per 7 days. Stop Stalker asks for nothing beyond the download.

Frequency Generator ships an update every 4 weeks, Stop Stalker every 5 days. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Frequency Generator | Stop Stalker |
| --- | --- | --- |
| Price | **Free** | $5.99 |
| Rating | **[4.7 (23 ratings)](https://appshunter.io/ios/app/frequency-generator-hz-tones/id6468866671/reviews)** | — |
| Number of ratings | **23** | — |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Every 5 days** |
| Monetization | **Freemium** | Paid |
| Best chart rank | — | **#195** |
| Size | 33 MB | 2 MB |
| Requires iOS | 18.3 | **17.6** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Manfred Kuegel](https://appshunter.io/developer/1520736594) | [Sova Networks Inc.](https://appshunter.io/developer/1864018652) |

## What reviewers say

### Frequency Generator

[App page](https://appshunter.io/ios/app/frequency-generator-hz-tones/id6468866671)

Generate precise audio tones for sleep, focus, and relaxation. Explore a wide frequency range, shape waveforms, and access presets like Solfeggio frequencies. An optional Pro upgrade unlocks all features.

**Highlights:** Wide frequency range (1 Hz - 22,000 Hz), Multiple waveforms (sine, square, sawtooth, triangle), Background audio playback, Solfeggio frequencies and musical notes, Binaural beats and isochronic tones, Saved and pinned tone presets, Lock-screen and Control Center controls

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Weekly | $4.99 | per 7 days |
| Pro Yearly | $29.99 | per year |


### Stop Stalker

[App page](https://appshunter.io/ios/app/stop-stalker/id6756981216)

**Currently charting:** #195 Top Paid · Utilities (US App Store)

This app offers a suite of tools to detect hidden devices and protect your privacy. It includes network scanning, Bluetooth tracker detection, magnetic field sensing, and a hidden lens detector to help you feel safer in various environments.

**Highlights:** Smart Network Scanner, Bluetooth Tracker Detector, Magnetic Field Detector, Hidden Lens Detector, AR Signal Hunter, Photo Privacy Shield, Audio Masking

**In-app purchases:** none


## Frequently asked questions

### Is Frequency Generator free?

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

### Is Stop Stalker free?

Stop Stalker costs $5.99, with no in-app purchases.

### Do Frequency Generator or Stop Stalker have ads?

Neither Frequency Generator nor Stop Stalker shows ads.

### Which is updated more often, Frequency Generator or Stop Stalker?

Frequency Generator ships an update every 4 weeks, and Stop Stalker every 5 days. Most recently, Frequency Generator was updated on October 30, 2026 and Stop Stalker on October 28, 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.*