TestTone vs EGSY01 Analog Synth
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TestTone
Read full descriptionHide full description
This test signal generator is ideal for checking audio equipment and confirming audible frequency ranges.It can play sine, triangle, sawtooth, and square waves from 20 Hz to 20 kHz, as well as white noise and pink noise. Features • You can switch between preset frequencies, white noise, and pink noise using the frequency preset buttons. You can also tap the frequency display area to enter any desired frequency manually. The frequency can also be adjusted using the left/right buttons or by tapping the frequency display. • Supports switching between sine, triangle, sawtooth, and square waveforms. • Playback starts or stops by tapping the ON/OFF button or the icon at the top. Note Playing at high volumes may cause hearing damage or damage to your audio equipment. Please use with caution.
EGSY01 Analog Synth
Create a wide range of analog and vintage sounds with this versatile synthesizer app. It features dual oscillators, multiple synthesis types, and extensive modulation options. Seamlessly integrate with other music apps and hardware via MIDI and audio sharing protocols.
- Dual oscillators with selectable waveforms
- FM, addictive, and subtractive synthesis
- Arpeggiator and step sequencer
- InterApp audio, AUv3, and CoreMIDI support
- Touch-sensitive keyboard with modulation
- Stereo delay and FX panel
- Oscilloscope visualization
Read full descriptionHide full description
ElliottGarage presents EGSY01 analog synth v2.0, featuring InterApp audio, AU3, CoreMIDI, Audiobus and much more! With EGSY01 you can create sounds without any limit, from modern ones to vintage analog ones, working with arpeggiator, step sequencer and FM, addictive and subtractive synthesis . The totally brand new audio engine generate your sound mixing 2 oscillators with 4 selectable waveforms, and you can watch the sound created on the oscilloscope screen. You can set the sounds through the panels "Oscillators", "ADSR/LFO", "FM", "FX" and "Settings", and play with any master keyboard or MIDI controller (CORE MIDI), or creating a wireless MIDI network, or again sending the audio signal to other apps with InterApp audio or AUDIOBUS. The keyboard is touch sensitive, and you can modulate the sound by sliding your finger up and down on the keys or moving the pitch modulation (assignable to various parameters of the synth from "Settings" panel). You can also set your favorite musical scale on the keyboard and easily play over your songs. Stereo delay and Arpeggiator steps time can be synchronize in the BPM tempo panel, to generate incredible rythmic figures. Features: - 2 oscillators with selectable waveforms, volume, octave e detune - InterApp Instrument & AU3 compliant - MIDI In from other app and MIDI controllers - 4 Waveforms (Sine, Saw, Triangle, PWM) - Core midi/Network midi - MIDI Learn functionality to map all knobs and slider to your external MIDI controller - Vca / Vcf - Evenlope ADSR - FM Synthesis panel (with 2 operators) - Panel BPM tempo, with tap tempo, tempo sync for Delay & Arpeggiator, and subdivisions (4/4, 6/8 and 8/8) - Arpeggiator - 4 different types of arpeggiator, gate, selection arpeggio octaves - Step sequencer with selection from 4 to 16 steps and pitch values root, fifth, 1 octave, 1 octave fifth, 2 octave - Setting for keyboard and arpeggiator portamento - Stereo delay (can be synchronized with the arpeggiator) - Panel FX (delay + crush + noise) - VoiceSynth effect with Keyboard Controlled option - Granular effect - High Pass and Low Pass Filter - Keyboard with 6 octaves and control on filter cutoff - Keyboard musical scales (56 different types) - Modulation wheel can be assigned to different parameters - Oscilloscope - Presets save - overwrite - exchange - LFO with selectable amplitude and frequency - Audiobus, Interapp & AU3 - Polyphony - Universal App * the app includes presets designed by Red Sky Lullaby, SoundOfIzrael and Alfonso Fo' Corace [Fo's Room]
Screenshots
Verdict
The clearest difference is update cadence: EGSY01 Analog Synth at every 10 days against TestTone's every 5 months. EGSY01 Analog Synth also leads on iOS requirement (9.1 vs 15.6). TestTone's advantage is price ($1.99 vs $6.99). On ads, in-app purchases 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
TestTone costs $1.99 and EGSY01 Analog Synth $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.
TestTone ships an update every 5 months, EGSY01 Analog Synth every 10 days. The most recent releases landed on October 27, 2026 and October 23, 2026 respectively.
| Parameter | TestTone | EGSY01 Analog Synth |
|---|---|---|
| Price | $1.99 — better | $6.99 |
| Rating | — | 4.5 (29 ratings) — better |
| Positive reviews | — | 72.7% of reviews |
| Number of ratings | — | 29 — better |
| Update frequency | Every 5 months | Every 10 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 9.1 — better |
| Further details — not scored | ||
| Size | 8 MB | 27 MB |
| Age rating | 4+ | 4+ |
| Developer | HTLab | Elliott Garage |
In-app purchases
TestTone
No in-app purchases
EGSY01 Analog Synth
No in-app purchases









