Comparison

Frequency Generator vs Voice Studio

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Frequency Generator

This audio toolkit generates tones for testing and tuning, checks speaker performance for distortion, and uses sound waves to clean water and debris from speakers. It offers precise frequency control and high-fidelity sound output for various audio needs.

Highlights
  • Tone generator (20-20,000 Hz)
  • Speaker testing for distortion
  • Water eject mode for speaker cleaning
  • Precise frequency control
  • High-quality sound output
Features
Read full description

Frequency Generator: Hz Waves is a versatile audio toolkit that combines a tone generator, speaker tester, and water ejector in one app. Generate any frequency from 20 Hz to 20 kHz to meet all your sound needs – whether you're doing a hearing test, tuning an instrument, or experimenting with sound waves. Ensure your phone's speakers are in top shape by running comprehensive audio tests to detect distortion or imbalances. If your speaker is muffled from water, use the speaker cleaner function with 4 specialized modes to remove water and debris, instantly restoring loud and clear sound. Key Features - Tone Generator (20–20,000 Hz): Generate sine wave tones at any frequency. Useful for hearing tests, instrument tuning (440 Hz, 432 Hz, etc.), and science experiments. - Speaker Tester: Check your phone's speakers with frequency sweeps across the full audio spectrum. Identify distortion, low volume, or other issues in your device's speakers. - Water Eject Mode: Remove water and dust from your speaker with 4 powerful sound wave modes (speaker cleaner). Fix muffled audio and boost speaker volume back to normal. - Easy & Precise Control: Fine-tune frequencies easily with intuitive controls (slider or direct input) to get the exact tone or sound wave you need. - High-Quality Sound: Enjoy continuous, high-fidelity tones with no interruptions – perfect for audio calibration and speaker maintenance. Water Eject Mode is unlocked with a Premium subscription (Weekly, Monthly, or Annual). Subscription auto-renews; you can cancel anytime. Premium Plans: - Weekly - Monthly - Yearly Download Frequency Generator: Hz Waves now to enhance your audio experience and keep your phone's speakers at peak performance! Privacy Policy: https://chillcraftapps.es/knowledgedesc?id=2 Terms and Conditions: https://chillcraftapps.es/knowledgedesc?id=12

About

Voice Studio

Effortlessly record audio, transcribe it into searchable text, and organize your notes with timestamps and tags. This app supports background recording, Bluetooth microphones, and multiple languages for seamless transcription.

Highlights
  • Background recording with pause/resume
  • Bluetooth microphone support
  • Speech-to-text transcription
  • Word-level timestamps
  • Searchable transcripts
  • Audio playback with highlighting
  • Organize with tags and calendar
Features
Read full description

Voice Studio turns what you record into text you can search, skim and share. Meetings, lectures, interviews or a thought you don't want to lose all end up as a transcript you can actually read. Recording is built for real rooms: pause and resume the same file, keep capturing while you switch apps or lock the screen, and connect a Bluetooth mic. Schedule a start and stop time and it records without you. Speech to text uses Apple speech recognition. With a connection, audio is processed by Apple's speech service, the same one behind Siri Dictation, for the sharpest result. With no connection, the recognizer built into your iPhone takes over automatically, so a transcript still comes back. Many spoken languages are supported. Every word carries a timestamp. The transcript highlights along with playback, karaoke style, and tapping a word jumps the audio to that moment. Add a title, tags, mood and place, then browse by calendar or stats. FEATURES - Recording with pause, resume and background mode - Bluetooth mic, noise reduction and live monitoring - Scheduled auto-start and auto-stop - Speech to text in many spoken languages - Word timestamps, follow-along highlighting, tap to jump - Markers, waveform scrubbing and playback speed - Titles, tags, mood, location, calendar and stats - Export TXT or JSON, share audio, themes and languages Voice Studio Pro unlocks the full experience with a yearly subscription or a one-time lifetime purchase. Subscriptions renew automatically and can be cancelled anytime in Settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Frequency Generator4 screens
Voice Studio4 screens

Verdict

The call

The clearest difference is ads: Voice Studio at none against Frequency Generator's shown. Voice Studio also leads on update cadence (every 11 days vs every 2 months). Frequency Generator's advantage is ratings volume (16 vs 1). On price, rating, in-app purchases and monetization model there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Frequency Generator sells 4 in-app purchases, starting at $4.99 per 7 days and Voice Studio sells 2 in-app purchases, starting at $9.99 per year. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Frequency Generator against 5.0 for Voice Studio. That said, the two scores are not equally well evidenced: Frequency Generator has 16 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Frequency Generator ships an update every 2 months, Voice Studio every 11 days. The most recent releases landed on July 8, 2026 and September 8, 2026 respectively.

Scorecard3 real differences · 6 level
Frequency Generator versus Voice Studio: the parameters behind the verdict, then further details
ParameterFrequency GeneratorVoice Studio
PriceFreeFree
Rating5.0 (16 ratings)5.0 (1 ratings)
Number of ratings16 — better1
Update frequencyEvery 2 monthsEvery 11 days — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhoneiPhone, iPad — better
Requires iOS17.616.4 — better
Further details — not scored
Size12 MB35 MB
Age rating4+4+
DeveloperORIOL NADAL SERRA朝军 窦

Customer experience

Frequency Generator

All ratings16 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Voice Studio

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

4 purchases

Frequency Generator

Subscriptions3
  • Weekly Premium3 Days trial$4.997 Days
  • Monthly Premium$4.991 Month
  • Yearly Premium$39.991 Year
One-time1
  • Premium For Life$14.99
2 purchases

Voice Studio

Subscriptions1
  • Voice Studio Pro — Annual$9.991 Year
One-time1
  • Voice Studio Pro — Lifetime$19.99

Questions

Is Frequency Generator free?
Frequency Generator is free to download, with in-app purchases available.
Is Voice Studio free?
Voice Studio is free to download, with in-app purchases available.
Which has better reviews, Frequency Generator or Voice Studio?
Frequency Generator and Voice Studio are both rated 5.0 out of 5 on the App Store, from 16 and 1 ratings respectively.
Do Frequency Generator or Voice Studio have ads?
Frequency Generator shows ads; Voice Studio does not.
Which is updated more often, Frequency Generator or Voice Studio?
Frequency Generator ships an update every 2 months, and Voice Studio every 11 days. Most recently, Frequency Generator was updated on July 8, 2026 and Voice Studio on September 8, 2026.

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