Comparison

Tone generator vs DSP MASTER

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

Head to head
About

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.

Highlights
  • Generate periodic signals
  • Adjustable frequency and amplitude
  • Integrated instrument tuner
  • Metronome for practice
  • Hearing ability tests
  • Generate white/pink noise
  • Create tone sequences
Features
Read full description

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.

About

DSP MASTER

Features
Read full description

DSP Master is suited for controlling DSP devices from Audio Design. You can connect the compatible devices via Bluetooth to perform EQ settings, Filter settings and other DSP functions. Compatible DSP devices: Crunch CRE400.4DSP ESX SE800.6DSP HiFonics ZXR800/8DSP

Screenshots

Tone generator4 screens
DSP MASTER4 screens

Verdict

The call

The clearest difference is in-app purchases: DSP MASTER at none against Tone generator's 3. DSP MASTER also leads on ads (none vs shown) and iOS requirement (9.0 vs 12.0). On price, update cadence and device support 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. Tone generator sells 3 one-off in-app purchases. DSP MASTER asks for nothing beyond the download.

UpkeepUpdate frequency

Tone generator ships an update every 5 months, DSP MASTER every 4 months. Both last shipped on September 17, 2026.

Scorecard3 real differences · 7 level
Tone generator versus DSP MASTER: the parameters behind the verdict, then further details
ParameterTone generatorDSP MASTER
PriceFreeFree
Rating4.0 (152 ratings) — better—
Positive reviews67.1% of reviews—
Number of ratings152 — better—
Update frequencyEvery 5 monthsEvery 4 months — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.09.0 — better
Further details — not scored
Size27 MB6 MB
Age rating4+4+
Developermichael heinzAudio Design

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
Show 5 more
  • 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
Show 2 more
  • Dark mode option
  • Advanced analytics dashboard

DSP MASTER

Not enough reviews yet to summarise bugs or requests.

In-app purchases

3 purchases

Tone generator

One-time3
  • Extra-Feature 1$1.99
  • No advertising$1.99
  • Upgrade to full version$3.99
None

DSP MASTER

No in-app purchases

Questions

Is Tone generator free?
Tone generator is free to download, with in-app purchases available.
Is DSP MASTER free?
DSP MASTER is free to download, with no in-app purchases.
Do Tone generator or DSP MASTER have ads?
Tone generator shows ads; DSP MASTER does not.
Which is updated more often, Tone generator or DSP MASTER?
Tone generator ships an update every 5 months, and DSP MASTER every 4 months. Most recently, Tone generator was updated on September 17, 2026 and DSP MASTER on September 17, 2026.

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