Stria vs VAMono
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Stria
This app is a multilevel interactive sound synthesizer that utilizes Frequency Modulation and Wavetable Additive techniques. It offers extensive control over oscillators, pitch grids, and effects, with support for various audio and MIDI connections.
- Multilevel interactive sound synthesizer
- Up to 240 FM or Wavetable Additive Oscillators
- Five Spectral Pitch Grid Generators
- MIDI Pad With Scale Grid
- Extensive effects chain (Doppler, Glitch Gen, Reverb, etc.)
- Snapshots Presets Morphing Pad
- Control Manager LFO for Parameters
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Stria is rated as a Killer App by Apps4iDevices. Multilevel Interactive Sound Synthesizer Idea and Csound-Orchestra by Eugenio Giordani “Stria” is the title of a very important composition by John Chowning and I would like to say that this computer music piece represents the manifest of Frequency Modulation technique applied to audio synthesis, invented by Mr. Chowning himself. + Audiobus and Inter-App Audio support + Up to 240 Frequency Modulation Oscillators or simple Wavetable Additive + Five Spectral Pitch Grid Generators (Geometric, Harmonic, Fibonacci, Scalar, Temperated) + MIDI Pad With Scale Grid + Effects chain: Doppler, Chopper, Glitch Gen, Sync Grain, Spectral Arpeggiator, FDN Reverb, Dynamic Compressor/Expander + Snapshots Presets Morphing Pad + Control Manager LFO for Parameters + Midibus, Virtual Midi and Network: 14 bit NRPN controllers + Capture Master Audio Output + File Manager, sharing common audio files via iTunes, Dropbox and AudioCopy + Post Fx Chain: Doppler, Chopper, Out Of Range, Sync Granulator, Spectral Arpeggiator, Reverb FDN, Dynamisc Processor + Bluetooth A2DP High Quality + etc...
VAMono
This app is a virtual analog monophonic synthesizer inspired by classic 80s synths. It features two oscillators, a versatile filter, and built-in effects like distortion and delay. A 64-step sequencer allows for note and parameter automation.
- Virtual analog monophonic synthesizer
- Two oscillators with extensive modulation
- 24 dB lowpass filter
- Distortion and delay effects
- 64-step sequencer for notes and parameters
- AudioUnit Extension (AUv3) and Stand Alone modes
- Ableton Link and Bluetooth MIDI support
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VAMono is a virtual analog monophonic synthesizer inspired by iconic monophonic analog synthesizers of the 80's. The oscillators are capable of wide variety of modulation to shape the sound before the filtering stage. Pitch, shape and pulse width can be modulated by LFO, ADSR envelope. Xmod and Ring modulation offers audio rate modulation. Hard Sync offers a characteristic sync sound. Filter section and Amplifier offers classic sound of the iconic analog synthesizer of 80’s. Amp section additionally offers amplitude modulation followed by distortion and delay effect. VAMono offers built-in 64 step sequencer to sequence notes and parameters. Synthesizer and Sequencer can be used as an AudioUnit Extension (AUv3) or Stand Alone. Stand Alone Mode supports Ableton Link, Bluetooth MIDI and MIDI IN/OUT. Main Features AudioUnit Extension (AUv3) - Virtual Analog Monophonic Synthesizer features two oscillators, one LFO, one lowpass filter, three envelope generator, one amplifier, distortion and delay effect. - Oscillators are capable of producing continuously variable wave shapes and offers variety of modulation. - Features two Amp Envelopes, Gate and ADSR. ADSR envelope is analog style non-linear envelope generator. - 24 dB per octave lowpass filter and amplifier produces characteristic sound of iconic analog synthesizer in 80’s - LFO provides seven wave shapes and can be synced with tempo. Distortion and delay effects are included. Sequencer - Sample accurate 64 step sequencer capable of sequencing notes and parameter automation. - Synthesizer and sequencer work as AudioUnit Extension (AUv3) and as Stand Alone. - MIDI input and output - 60 factory patches Stand Alone (AU Host Application) - Support Ableton Link - Support Bluetooth MIDI - MIDI input and output System Requirements - iOS 14.2 or later (VAMono utilizes features introduced in iOS 14 and it is not backward compatible.)
Screenshots
Verdict
The clearest difference is update cadence: VAMono at every 2 weeks against Stria's every 5 months. Stria's advantage is rating (5.0 vs 4.6) and price ($9.99 vs $14.99). On review sentiment, 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
Stria costs $9.99 and VAMono $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Stria holds the better App Store score, 5.0 against 4.6. Both are backed by a comparable volume of ratings — 35 and 12 respectively. Written reviews point the same way: 91% of Stria's written reviews are positive against 83% of VAMono's.
Stria ships an update every 5 months, VAMono every 2 weeks. The most recent releases landed on August 31, 2026 and September 20, 2026 respectively.
| Parameter | Stria | VAMono |
|---|---|---|
| Price | $9.99 — better | $14.99 |
| Rating | 5.0 (35 ratings) — better | 4.6 (12 ratings) |
| Positive reviews | 91.1% of reviews — better | 83.3% of reviews |
| Number of ratings | 35 — better | 12 |
| Update frequency | Every 5 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 15.6 | 14.2 — better |
| Further details — not scored | ||
| Size | 19 MB | 21 MB |
| Age rating | 4+ | 4+ |
| Developer | apeSoft | Ryo Togawa |
Customer experience
Stria
VAMono
In-app purchases
Stria
No in-app purchases
VAMono
No in-app purchases









