Comparison

Guitar Progression Generator vs midiOS

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

Head to head
About

Guitar Progression Generator

Features
Read full description

Guitar Progression Generator revolutionizes how songwriters, composers, and improvisers craft killer chord progressions—instantly! Unlock pro-level creativity with full arrangements: drag-and-drop your way to chords + drums + bass. Remix public hits, or generate AI-powered versions of your songs (beta launching soon!). Why Guitarists Love It Pick your scale, drag chords between templates, and watch genius suggestions light up. Build in any key, trash what doesn't vibe, and hear it all with lush Piano/Rhodes, electric/acoustic bass, or electronic sounds. Pro Features That Inspire - Smart drag-and-drop builder with secondary dominants, modal interchange, and diminished magic (major/harmonic minor). - Dynamic fingerboard syncs to your chords—scale view, full tones, CAGED, Drop 2 (pick your voicing!). - Independent bass for reharmonization wizardry. - Real-time drums via editable sequencer grid. - 1–20 chord slots (odd times? No problem). - Tempo slider: 40–200 BPM. - Instant chord analysis: name, function, scale, mode. From home builder to player page with live visuals—everything flows on mobile or tablet. No ads! https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Guitar Progression Generator puts pro-level songwriting in your pocket. Build chord progressions from scratch, hear them instantly with a full band, and export studio-ready chord charts — all without touching a DAW. BUILD PROGRESSIONS YOUR WAY Choose your key, scale (Major, Harmonic Minor, Melodic Minor), and drag chords into place. Our concentric chord wheel lays out diatonic, borrowed, and dominant chords in one beautiful view — so you can see harmonic relationships at a glance and never run out of ideas. EXTENDED CHORDS & JAZZ HARMONY Go beyond triads with 7ths, 9ths, 11ths, 13ths, and altered dominants (7#9, 7b9, 7#5, and more). Perfect for jazz, neo-soul, gospel, lo-fi, and cinematic writing. HEAR EVERYTHING — INSTANTLY Hit play and hear your progression with up to 4 instruments: • Keys: Rhodes, Piano, Organ, or Pad • Bass: Electric or Acoustic • Drums: Acoustic Kit or 808s • Guitar fretboard synced to every chord Each instrument is independently adjustable — tweak the bass line, edit the drum grid note by note, and shape the arrangement you hear in your head. MULTI-SECTION SONG STRUCTURES Build full songs with A, B, C, and D sections, each with its own chords, bass line, and drum pattern. Arrange them in any order (Intro → Verse → Chorus → Bridge) and hear the whole song play through. SMART FEATURES THAT INSPIRE • Intelligent chord suggestions light up as you build • Secondary dominants, modal interchange, and diminished substitutions • Independent bass for reharmonization and walking lines • "Now Playing" indicator shows the current chord in real time • Adaptive sustain — sparse progressions ring out, busy ones stay tight • 1–20 chord slots per section (odd meters welcome) • Tempo control from ballad to shred FRETBOARD & CHORD DIAGRAMS A dynamic fretboard syncs to your progression in real time. Switch between Scale view and Chord fingering view to see exactly what to play. EXPORT & SHARE Generate clean PDF chord charts for rehearsals, lessons, or your songwriting archive. Print or share directly from the app. AI SONG GENERATION (Beta) Describe a vibe — pick a genre, mood, and tempo — and let AI generate a backing track for you. Available with Pro and Elite subscriptions. NO ADS. EVER. Focus on the music. Free users get the full creative toolkit with zero interruptions. Whether you're sketching ideas on the couch, prepping for a gig, or teaching students — Guitar Progression Generator is the fastest way to go from "what if" to "that's the one." https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

midiOS

Features
Read full description

Before installing, visit midios.app/setup for setup instructions. midiOS is a new kind of instrument. Transform your iPhone into an expressive MIDI instrument with advanced harmony, multidimensional performance control, and deep DAW integration. Play notes, chords, scales, arpeggios, modulation, and complete live performances from the device you already carry. With Offline Play, midiOS becomes a self-contained instrument. Choose from built-in sounds, create an instrument rack, record or import personal samples, and capture performances in Offline LiveGrid—without a Mac, DAW, account, or network connection. Designed for musicians, midiOS opens ready to perform. Tap pads to play notes, chords, and scales. Change keys, modes, voicings, and tonal centers without interrupting your flow. Swipe across pads to explore inversions, chord qualities, suspensions, secondary dominants, chromatic movement, and harmonic variations. Every gesture can become musical. Shape your performance with multi-touch, directional gestures, device motion, aftertouch, pitch movement, XY pads, sliders, knobs, and macros. Optional facial controls let head and expression movements influence harmony, modulation, register, and other performance destinations in real time. Performance Modes transform these inputs into coordinated musical systems. Intelligent voice leading keeps chords connected, expressive harmony controls create fluid transitions, and synchronized arpeggiation follows your DAW’s tempo and phase without restarting the pattern. Built-in modes provide focused setups for piano performance, harmony exploration, musical learning, generative flow, and Ableton control, while Custom Mode lets you create your own instrument. Save complete instruments and performance setups in the Layout Library, then switch between them quickly. Discover and install compatible instruments through the midiOS Marketplace, or transfer your own layouts securely between midiOS and the midiOS Bridge. Using the free midiOS Bridge for Mac, connect over USB or Wi-Fi for a fast, authenticated MIDI connection to your computer. midiOS works with MIDI-compatible software and offers deep Ableton Live integration, including clip and scene launching, transport, session navigation, mixer controls, macros, and real-time visual feedback on your iPhone. Rotate your device to enter LiveGrid and transform your iPhone into a live performance controller. Launch clips and scenes, navigate your session, control transport, and manage your performance from across the stage or studio. Built for live performance, midiOS combines responsive MIDI, intelligent harmony, stable note ownership, fast layout switching, haptic feedback, visual feedback, and automatic reconnection in a workflow designed to keep you focused on making music. Most MIDI apps give you buttons. midiOS gives you an instrument that responds to how you play. Learn more at midios.app.

Screenshots

Guitar Progression Generator4 screens
midiOS4 screens

Verdict

The call

The clearest difference is price: Guitar Progression Generator at Free against midiOS's $24.99. Guitar Progression Generator also leads on device support (3 vs 1) and iOS requirement (13.0 vs 26.0). midiOS's advantage is in-app purchases (none vs 5) and update cadence (every 3 days vs every 8 days). On ads 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

Guitar Progression Generator is free to download; midiOS costs $24.99 up front. Guitar Progression Generator sells 5 in-app purchases, starting at $4.99 per month. midiOS asks for nothing beyond the download.

UpkeepUpdate frequency

Guitar Progression Generator ships an update every 8 days, midiOS every 3 days. The most recent releases landed on November 8, 2026 and November 12, 2026 respectively.

Scorecard5 real differences · 1 level
Guitar Progression Generator versus midiOS: the parameters behind the verdict, then further details
ParameterGuitar Progression GeneratormidiOS
PriceFree — better$24.99
Update frequencyEvery 8 daysEvery 3 days — better
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS13.0 — better26.0
Further details — not scored
Size89 MB12 MB
Age rating4+4+
DeveloperRomeu Beatojason merrill

In-app purchases

5 purchases

Guitar Progression Generator

Subscriptions4
  • Pro Monthly$4.991 Month
  • Elite Monthly$9.991 Month
  • Pro Yearly$34.991 Year
Show 1 more
  • Elite Yearly$69.991 Year
One-time1
  • Unlock Premium Features$9.99
None

midiOS

No in-app purchases

Questions

Is Guitar Progression Generator free?
Guitar Progression Generator is free to download, with in-app purchases available.
Is midiOS free?
midiOS costs $24.99, with no in-app purchases.
Do Guitar Progression Generator or midiOS have ads?
Neither Guitar Progression Generator nor midiOS shows ads.
Which is updated more often, Guitar Progression Generator or midiOS?
Guitar Progression Generator ships an update every 8 days, and midiOS every 3 days. Most recently, Guitar Progression Generator was updated on November 8, 2026 and midiOS on November 12, 2026.

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