Stria vs Unique for iPhone
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...
Unique for iPhone
Create unique analog synth sounds with a wide sonic spectrum. Explore classic and gritty tones with versatile oscillators, filters, and built-in effects. Features a unique Vowel Filter for distinctive vocal-like textures.
- Multiple oscillator waveforms
- Analog filter types
- Vowel Filter with formant stringing
- LFO and envelope modulation
- Recordable XY field and sequencer
- Dual effect units
- Audio Unit v3 support
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“Unique sounds like syrup with dirt kicked into it. If Bootsy Collins, Roger Troutman and Daft Punk would have met up in Studio 54 to create a soft-synth, for sure something like Unique would have come out of it…” Sound & Recording Mag Unique was made for fun and vibes: Analogue sound, intense modulation and a killer set of features, delivering an amazing sonic spectrum that’s full of character: Classy sounds, powerful, warm… sometimes gritty. Each of the 2 oscillators offers a selection of 5 waveforms: sawtooth and pulse waves are here, along with noise, triple saw and triple FM waves. There's also an additional sub-oscillator strapped into the master section for added oomph. The internal controllers will bring in the dynamics: an LFO and an envelope, there's a recordable XY field & a sequencer. Use these to modulate any knob – a simple long tap will do. The sound springs to life when it hits the filter section. Needless to say, analogue high-pass, low-pass and band-pass varieties are in place, along with a comb filter. Standards aside, the actual intention behind this project, the Vowel Filter, also became its outstanding feature: string together two or four vowel formants and play them back in a multitude of ways. Once you’ve built your sound, there’s tons of sound polish in two chained multi-effect units. Features • Sawtooth, Triple Saw, Pulse, Triple FM, Noise with tonal Filter, Sub Sine • 5 Filters with 5 Modulators each • Duophone Arpeggiator • Vowel Filter • Two Effect Sections • Audio Unit v3 • Ableton Link Kit • MIDI Learn & Host Automation • 300 groovy presets by various artists
Screenshots
Verdict
The clearest difference is review sentiment: Stria at 91% against Unique for iPhone's 44%. Stria also leads on rating (5.0 vs 3.8). Unique for iPhone's advantage is update cadence (every 4 weeks vs every 5 months) and price ($4.99 vs $9.99). On ratings volume, ads, in-app purchases and monetization model 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 Unique for iPhone $4.99 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 3.8. Both are backed by a comparable volume of ratings — 35 and 27 respectively. Written reviews point the same way: 91% of Stria's written reviews are positive against 44% of Unique for iPhone's.
Stria ships an update every 5 months, Unique for iPhone every 4 weeks. The most recent releases landed on August 31, 2026 and September 21, 2026 respectively.
| Parameter | Stria | Unique for iPhone |
|---|---|---|
| Price | $9.99 | $4.99 — better |
| Rating | 5.0 (35 ratings) — better | 3.8 (27 ratings) |
| Positive reviews | 91.1% of reviews — better | 44.0% of reviews |
| Number of ratings | 35 — better | 27 |
| Update frequency | Every 5 months | Every 4 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.6 | 12.0 — better |
| Further details — not scored | ||
| Size | 19 MB | 35 MB |
| Age rating | 4+ | 4+ |
| Developer | apeSoft | Sugar Bytes GmbH |
Customer experience
Stria
Unique for iPhone
In-app purchases
Stria
No in-app purchases
Unique for iPhone
No in-app purchases









