Tone generator vs Sound Oscilloscope
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Tone generator
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.
- Generate periodic signals
- Adjustable frequency and amplitude
- Integrated instrument tuner
- Metronome for practice
- Hearing ability tests
- Generate white/pink noise
- Create tone sequences
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Generate various periodic signals with different waveforms with adjustable frequency and amplitude. These are used to test electronic circuits such as amplifiers and filters. Also suitable for musicians to tune their instruments. As soon as a note sounds, the integrated tuner recognizes the pitch and displays the note name and deviation. For any instrument that produces an even tone. A metronome also helps you to practise. Drive insects away or compare your hearing ability with your friends and relatives and share your results! Or watch others straining their ears to find the sounds that cannot locate you. Party fun is guaranteed! optional features (Purchase): - free of Ads - manual frequency input - support app functionality for connected Bluetooth devices, e.g. speaker - different signals - white/pink noise - tuner for tuning instruments (real-time tone recognition C1-C8) with tuning whistle - metronome for a steady tempo - note/tone for frequency - Left/right channel, stereo - create a tone sequence for playing several different frequencies in particular time slot - loop for tone sequence - save and delete tone sequences - load saved tone sequences - send your tone sequence as an audio file (.caf format) - option to compress audio files Attention: If you want to share your results with others, first test your audible frequencies, then mark under the speakers your lowest audible tone and your highest audible tone (stored only temporarily). A small hint: the chart will show you what other frequencies of your age are still possible to reach.
Sound Oscilloscope
Visualize sound waves and analyze their frequency spectrum. This utility displays the waveform of various sounds, from your voice to musical instruments, and reveals their overtone structure. Explore the sonic characteristics of your environment with this straightforward tool.
- Shows sound waveform
- Shows sound spectrum
- Shows sound power level
- Sensitive algorithm
- Works from 30 Hz to 4000 Hz
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Sound Oscilloscope app is a simple oscilloscope that shows sound waveform. If you use this app you can watch and analyze waveform of your voice, a musical instrument, a car, a train and more... Further, Sound Oscilloscope allows you to watch sound spectrum and you can know the overtone structure of the sound. The working range of the app is 30 Hz to 4000 Hz. How about observing various kind of sound? Sound Oscilloscope will accompany you. Features -Sensitive algorithm -Shows waveform of sound -Shows spectrum of sound -Shows power level of sound
Screenshots
Verdict
The clearest difference is rating: Tone generator at 4.0 against Sound Oscilloscope's 3.3. Tone generator also leads on review sentiment (67% vs 33%) and ratings volume (155 vs 24). Sound Oscilloscope's advantage is in-app purchases (none vs 3) and ads (none vs shown). On price, device support and iOS requirement 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 generator sells 3 one-off in-app purchases. Sound Oscilloscope asks for nothing beyond the download.
Tone generator holds the better App Store score, 4.0 against 3.3. That said, the two scores are not equally well evidenced: Tone generator has 155 ratings behind it against 24, so its average is the more settled of the two. Written reviews point the same way: 67% of Tone generator's written reviews are positive against 33% of Sound Oscilloscope's.
Tone generator ships an update every 5 months, Sound Oscilloscope every 9 days. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.
| Parameter | Tone generator | Sound Oscilloscope |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (155 ratings) — better | 3.3 (24 ratings) |
| Positive reviews | 66.8% of reviews — better | 33.3% of reviews |
| Number of ratings | 155 — better | 24 |
| Update frequency | Every 5 months | Every 9 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 12.1 |
| Further details — not scored | ||
| Size | 27 MB | 15 MB |
| Age rating | 4+ | 4+ |
| Developer | michael heinz | Shinichi Takemura |
Customer experience
Tone generator
Sound Oscilloscope
Bugs and requests
Tone generator
Reported bugs
10 issues- 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
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- Frozen on my iPad
- Doesn't produce any sound
- No sound
- Faulty
- No sound
Requested features
7 requests- 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
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- Dark mode option
- Advanced analytics dashboard
Sound Oscilloscope
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Tone generator
- Extra-Feature 1$1.99
- No advertising$1.99
- Upgrade to full version$3.99
Sound Oscilloscope
No in-app purchases
Questions
Is Tone generator free?
Is Sound Oscilloscope free?
Which has better reviews, Tone generator or Sound Oscilloscope?
Do Tone generator or Sound Oscilloscope have ads?
Which is updated more often, Tone generator or Sound Oscilloscope?
Other comparisons
