Tone Gen Pro vs Spectrolite
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Tone Gen Pro
Create various audio signals, including single tones, sweeps, and merged sounds, with extensive parameter control. Ideal for students, musicians, educators, and audio professionals exploring sound.
- Generate single type signals (sine, square, noise)
- Create sweep (chirp) signals (linear/exponential)
- Generate click signals with adjustable duty cycle
- Merge multiple tones and sweeps
- Frequencies up to 20 kHz
- Extensive parameter control
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Generate audio signal of different shapes with many parameters and options. You can generate frequencies up to 20 kHz of audio signal. If you are curious student about sound after a physics class, music instruments hobbyist/professional, a teacher, or a professional in audio equipment, this app is for you ! You can generate: - Single type signal (sinusoidal, square, noise, etc) - Sweep (chirp) signal (linear or exponential) - Click: ON-OFF sine wave with any duty cycle and ON frequency - Merged sound of any number of tones or sweeps
Spectrolite
This app visualizes sound in real-time using various spectrogram types. Explore detailed audio data with intuitive touch controls and adjustable parameters. An optional purchase unlocks advanced measurement tools.
- Real-time spectrogram visualization
- Constant-Q, linear, and mel frequency scales
- Full human hearing frequency range
- Intuitive touch panning and zooming
- Adjustable gain, Q, and other parameters
- Pro version: grids, scales, spectrum view, tap-to-measure
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Spectrolite visualizes sound as spectrograms in real time. Spectrolite supports constant-Q spectrograms, which use a logarithmic frequency scale for a display where musical notes are evenly spaced. Spectrograms based on linear and mel frequency scales are also supported. The display covers the full frequency range of human hearing. Intuitive touch panning and zooming lets you dive in and explore the spectrograms in detail. Gain, Q, and other parameters can be adjusted in real time and instantly apply to the display of past signals as well as future ones. The Pro in-app purchase adds grids and scales for time, frequency, and amplitude, as well as a spectrum view and a tap-to-measure function. This expands Spectrolite into an audio measurement tool that you can use to measure frequencies, musical pitches, amplitudes, and durations.
Screenshots
Verdict
The clearest difference is rating: Spectrolite at 4.8 against Tone Gen Pro's 4.5. Spectrolite also leads on review sentiment (83% vs 75%). Tone Gen Pro's advantage is update cadence (every 3 months vs every 8 months) and iOS requirement (12.0 vs 15.6). On price, ratings volume, ads 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
Both are free to download. Tone Gen Pro sells 1 one-off in-app purchase and Spectrolite sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Spectrolite holds the better App Store score, 4.8 against 4.5. Both are backed by a comparable volume of ratings — 45 and 51 respectively. Written reviews point the same way: 75% of Tone Gen Pro's written reviews are positive against 83% of Spectrolite's.
Tone Gen Pro ships an update every 3 months, Spectrolite every 8 months. The most recent releases landed on October 13, 2026 and October 9, 2026 respectively.
| Parameter | Tone Gen Pro | Spectrolite |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (45 ratings) | 4.8 (51 ratings) — better |
| Positive reviews | 75.0% of reviews | 83.3% of reviews — better |
| Number of ratings | 45 | 51 — better |
| Update frequency | Every 3 months — better | Every 8 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 44 MB | 1 MB |
| Age rating | 12+ | 4+ |
| Developer | Ibrahim Al-Sammarraie | Waxing Wave |
Customer experience
Tone Gen Pro
Spectrolite
In-app purchases
Tone Gen Pro
- Tone Gen Pro Full$1.99
Spectrolite
- Pro$4.99
Questions
Is Tone Gen Pro free?
Is Spectrolite free?
Which has better reviews, Tone Gen Pro or Spectrolite?
Do Tone Gen Pro or Spectrolite have ads?
Which is updated more often, Tone Gen Pro or Spectrolite?
Other comparisons
