Comparison

Stria vs rrarrow

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

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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...

About

rrarrow

Create experimental audio effects with extended feedback capabilities. This modular noise machine offers a simplified interface for fast assembly and flexible connectivity, allowing you to control processing parameters with the audio signal itself.

Highlights
  • Modular audio effect processing
  • Extended feedback capabilities
  • 20 audio processing blocks
  • Built-in audio recorder
  • MIDI controller support
  • Audiobus and Inter-App Audio support
  • Background audio playback
Features
Read full description

rrarrow is the experimental noise machine / modular audio effect for the iOS featuring extended feedback capabilities. Key features: - Simplicity. The interface is simplified for faster assembly and more flexible connectivity — you can assemble your effect very fast and control all the processing parameters with the audio signal! - Feedback capabilities. You can add feedbacks to the audio chain to get some chaotic noise sounds . - 20 blocks for audio processing: - Sine generator. Basic oscillator with sine waveform - Saw and square oscillators - Signal multiplier - Delay - Frequency shifter - Envelope follower - “Lorenz attractor” - Quantizer - Sample-and-hold - Reverb - Special Lowpass filter - Clipper - Nonlinear shaper (for self-oscillating circuit) - two special waveshaping modules with “fold” and “wrap” distortion blocks that work with audiofiles: - lookup table. Loads up to 10 seconds of audiofile to be used as nonlinear transfer function - Players with/without interpolation and speed control - "scrub" block for semi-random granular file playback - Built-in audio recorder. Share the audio file to other applications or AudioShare. - MIDI support! Assign MIDI controllers to all faders. Supports network midi and has a virtual MIDI in. - Audiobus support. Now you can stream live audio directly to other Audiobus-compatible apps! See http://audiob.us for more information. Works as input and filter. - Audiobus state saving support - Inter-App Audio support - Background audio support: enabled when connected to Audiobus and user switchable otherwise. The 'background audio" switch is located in app's "settings" page iPad2/iPhone4S or newer is recommended for complex presets this app is optimized for iPad and iPhone 5 To get started please watch the tutorial videos on the website and read the user guide inside the app

Screenshots

Stria4 screens
rrarrow3 screens

Verdict

The call

The clearest difference is update cadence: rrarrow at every 4 weeks against Stria's every 6 months. rrarrow also leads on price ($3.99 vs $9.99) and device support (4 vs 2). Stria's advantage is rating (5.0 vs 4.6) and review sentiment (91% vs 81%). 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

CostPrice · In-app purchases · Ads · Monetization

Stria costs $9.99 and rrarrow $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Stria holds the better App Store score, 5.0 against 4.6. Both are backed by a comparable volume of ratings — 35 and 19 respectively. Written reviews point the same way: 91% of Stria's written reviews are positive against 81% of rrarrow's.

UpkeepUpdate frequency

Stria ships an update every 6 months, rrarrow every 4 weeks. The most recent releases landed on October 14, 2026 and September 28, 2026 respectively.

Scorecard6 real differences · 4 level
Stria versus rrarrow: the parameters behind the verdict, then further details
ParameterStriarrarrow
Price$9.99$3.99 — better
Rating5.0 (35 ratings) — better4.6 (19 ratings)
Positive reviews91.5% of reviews — better81.3% of reviews
Number of ratings35 — better19
Update frequencyEvery 6 monthsEvery 4 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPadiPhone, iPad, iPod, Mac — better
Requires iOS17.015.6 — better
Further details — not scored
Size20 MB29 MB
Age rating4+4+
DeveloperapeSoftAlexey Nadzharov

Customer experience

Stria

All ratings35 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews47 reviews
Positive91.5%
Neutral4.3%
Negative4.3%

rrarrow

All ratings19 ratings
Positive94.7%
Neutral0.0%
Negative5.3%
Written reviews16 reviews
Positive81.3%
Neutral6.3%
Negative12.5%

In-app purchases

None

Stria

No in-app purchases

None

rrarrow

No in-app purchases

Questions

Is Stria free?
Stria costs $9.99, with no in-app purchases.
Is rrarrow free?
rrarrow costs $3.99, with no in-app purchases.
Which has better reviews, Stria or rrarrow?
Stria is rated higher. Stria averages 5.0 out of 5 from 35 ratings, while rrarrow averages 4.6 from 19 ratings.
Do Stria or rrarrow have ads?
Neither Stria nor rrarrow shows ads.
Which is updated more often, Stria or rrarrow?
Stria ships an update every 6 months, and rrarrow every 4 weeks. Most recently, Stria was updated on October 14, 2026 and rrarrow on September 28, 2026.

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