Comparison

IND vs Tone Generator+ Freq

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

Head to head
About

IND

Features
Read full description

Ahora con una interfaz simple y intuitiva, puedesgestionar completamente tu sistema de sonidoutilizando las siguientes configuraciones: Ruta de canales Ganancia general Ganancia de canales Crossovers Limiteador Elevador de entrada Elevador de salida Selector de fase Alineación de tiempo Memoria configurable Monitoreo de bateria Monitoreo del Límiteador A través de una interfaz did¡ctica e intuitiva, es posiblehacer todas las configuraciones de DSP desde estaApp utilizando un teléfono inteligente o tableta, facilitaros ajustes del sistema, se puede hacer desde susistema de audio en tiempo real y hay un modo dedemostración para las personas que no tienen algunaexperiencia con esto todavia y pueden aprender cómofunciona.

About

Tone Generator+ Freq

Generate precise audio tones with various waveforms for testing, calibration, and experiments. Offers a wide frequency range and adjustable volume in a simple interface.

Highlights
  • Precise frequency generation
  • Multiple waveform types (sine, square, sawtooth, triangle)
  • Adjustable volume control
  • Full audible range support (20 Hz - 20,000 Hz)
  • Clean and stable audio output
  • Simple user interface
Features
Read full description

Tone Generator: Frequency Hz plays audio tones from 1 Hz to 22 kHz — pick a frequency or a preset, press the big Play button under the dial, and hear it. Sine, square, sawtooth and triangle waves, plus white, pink and brown noise. The tone keeps playing when you switch to another app or lock the screen, so a tone or noise can run while you read, work or rest. A sleep timer (15, 30 or 60 minutes) stops it for you. ▶ SET THE FREQUENCY • Step with the frequency arrows, jump by semitone or octave, or tap A4 • Watch the note name and cents readout as you go • Type exact Hz values for the right ear, the mixer and the sweep • The tone you hear matches the frequency shown on screen ▶ WAVEFORMS AND NOISE • Sine for a clean pure tone • Square, sawtooth and triangle for harmonics • White, pink and brown noise ▶ PRESETS — ONE TAP TO HEAR THEM • Tinnitus masking tone, sleep, A4 440 Hz, subwoofer 60 Hz, bass strings E A D G, dog whistle, cat repel • Brainwave beat pack (delta, theta, alpha, beta, gamma) and solfeggio tones • Save your own presets, including mixer setups • Tapping a preset starts the sound; if a tone is already playing, it switches to the new preset ▶ CHANNELS, BEATS AND SWEEP • Mono, stereo with a separate right-ear frequency, binaural beats and isochronic tones • Dual tone: two frequencies at once • Mixer: layer up to four tones, each with its own waveform and level • Frequency sweep between any two frequencies, once or looping, with the dial following the sweep ▶ MORE TOOLS • Instrument tuner: play a note and see its pitch and cents (uses the microphone) • Water Eject: a 165 Hz tone at full volume to help push water out of the speaker • Speaker and subwoofer checks with steady tones and sweeps ▶ WHO IT IS FOR • Musicians checking tuning against an exact Hz • People testing speakers, headphones and subwoofers • Students exploring sound, frequency and waveforms • Anyone who wants a steady tone or noise in the background ▶ SAFETY Start at a low volume. Loud tones, especially high frequencies, can harm hearing and speakers. Brainwave and solfeggio presets are traditionally used in relaxation and focus routines; they are not a medical or therapeutic treatment. The tinnitus preset is a masking tone, not a treatment. Available in 30 languages.

Screenshots

IND4 screens
Tone Generator+ Freq3 screens

Verdict

The call

The clearest difference is ads: IND at none against Tone Generator+ Freq's shown. IND also leads on device support (3 vs 1) and iOS requirement (12.2 vs 17.0). On price, update cadence and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

IND ships an update every 10 days, Tone Generator+ Freq every 5 days. The most recent releases landed on October 8, 2026 and October 24, 2026 respectively.

Scorecard3 real differences · 6 level
IND versus Tone Generator+ Freq: the parameters behind the verdict, then further details
ParameterINDTone Generator+ Freq
PriceFreeFree
Rating—5.0 (2 ratings) — better
Number of ratings—2 — better
Update frequencyEvery 10 daysEvery 5 days — better
AdsNo — betterYes
In-app purchasesNoNo
Monetization—Ad-supported
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS12.2 — better17.0
Further details — not scored
Size57 MB61 MB
Age rating17+17+
Developer伟 陈Kyu-Hee Jang

In-app purchases

None

IND

No in-app purchases

None

Tone Generator+ Freq

No in-app purchases

Questions

Is IND free?
IND is free to download, with no in-app purchases.
Is Tone Generator+ Freq free?
Tone Generator+ Freq is free to download, with no in-app purchases.
Do IND or Tone Generator+ Freq have ads?
Tone Generator+ Freq shows ads; IND does not.
Which is updated more often, IND or Tone Generator+ Freq?
IND ships an update every 10 days, and Tone Generator+ Freq every 5 days. Most recently, IND was updated on October 8, 2026 and Tone Generator+ Freq on October 24, 2026.

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