Chord Randomizer vs irio pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Chord Randomizer
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Chord Randomizer is a powerful music theory practice tool from Nathaniel School of Music. Whether you're a beginner just learning your triads or an advanced musician drilling diatonic progressions, Chord Randomizer keeps your practice sessions fresh and effective. FEATURES - Randomised chord progressions so you never practice the same sequence twice - Three skill levels: Beginner, Intermediate, and Diatonic - Live audio playback with realistic instrument sounds: piano, guitar, harp, and cello - Arpeggio and block-chord playback modes, each with independent volume - Built-in metronome with configurable BPM from 40 to 240 - Playback speed multiplier: 1x, 1.5x, and 2x - Chord rate control: change chords every beat, every bar, or every two bars - Loop mode for continuous practice - MIDI export for use in any DAW - PNG export to share a clean chord chart with students or bandmates - Dark, professional UI optimised for practice sessions PERFECT FOR - Music students building chord recognition - Teachers generating practice exercises - Songwriters and composers exploring new progressions - Guitarists, pianists, and keyboardists of all levels Chord Randomizer runs entirely on-device. No account is needed, and no data is collected.
irio pro
This app offers a modular effects canvas for musicians, allowing for flexible signal chain routing with studio-grade modules. It supports various instruments and DAWs, featuring advanced amp modeling and modulation capabilities.
- Modular effects canvas
- Free signal chain routing
- Studio-grade audio modules
- Advanced amp modeling (NAM player)
- Customizable modulation effects
- AUv3 plugin support
- Scene and preset switching
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irio pro is a modular audio effects processor for iPhone, iPad and Apple Silicon Mac. Add modules and connect them in any order. Multiple inputs and outputs, parallel paths. The number of modules is limited only by your device's CPU. Runs standalone or as an AUv3 plugin. For guitar, bass, or any audio source. GUITAR / AMP - NAM (Neural Amp Modeler) player: A2 models, standard and nano - Cab section with IR loading, noise gate, 3-band EQ, high and low cut - Dual-cab IR blender with alignment scope - Drives and fuzzes (circuit-level simulations) - rosa: audio to MIDI converter - Chromatic tuner EFFECTS - 5 delays, 3 reverbs - Convolution for delays, reverbs and cabs - Chorus, flanger, pitch vibrato, photocell vibe, wah, ring modulator - Pitch shifting - Compressors - Noise gate - Parametric EQ with live analyzer - 8-voice synth ROUTING / ENGINE - Free routing, any order - Multi-channel in and out - Instances limited only by CPU - Live metering on every connection - Patch-wide tempo - Hosts other AUv3 effects - Hosts AUv3 instruments - Engine builder, 40+ DSP blocks MODULATION - Three modifier types: LFO, envelope follower, hand-drawn LFO - Route a modifier to almost any control - One modifier to many targets, each with its own range - LFO rates and delay times lock to the tempo PERFORM - 4 scenes per preset - Perform page with multiple pad banks - Pads trigger presets, scenes, module memories, stomps, module switches (Stop, Freeze, Kill Dry), A/B, tap tempo, looper and player transport - Pads are momentary or latching, groupable, in 16 colors - Multi-pads: one pad controls several targets - XY pads - 4 assignable knobs - Shortcuts: switches and knobs assignable to any control - MIDI learn on every control - Host automation in AUv3 (AUTO slots) - Saveable perform layouts TOOLS - 4-track looper - Take recorder - Audio file player - Metronome with speed trainer - Whole-system backup Free version, no trial or time limit: NAM player, morph drive, gyre mod, irio delay, irio verb, 3-band EQ, noise gate, audio player, metronome, global tempo. Pro Complete unlocks all modules. One purchase, no subscription. More at iriopro.com
Screenshots
Verdict
Chord Randomizer and irio pro are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Chord Randomizer | irio pro |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.9 (8 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 8 — better |
| Update frequency | — | Every 3 days |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 19 MB | 31 MB |
| Age rating | 4+ | 4+ |
| Developer | Jason Zachariah | Mads Rohde |
In-app purchases
Chord Randomizer
No in-app purchases
irio pro
No in-app purchases









