Comparison

StrumForge vs ModusCycler

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

Head to head
About

StrumForge

Instantly generate countless guitar chord progressions and practice with built-in scales, tempo, and grooves. Explore various chord types and fingerings, and play along with integrated drum patterns. Designed for musicians to focus on playing and songwriting.

Highlights
  • Generate over 425,000 chord progressions
  • Play along with chord diagrams in tempo
  • Solo over progressions with scale diagrams
  • Lock or randomize key
  • Choose chord types (open, barre, triads, power)
  • Built-in drum groove and tempo control
  • Left-handed chord diagram support
Features
Read full description

StrumForge brings chord progressions, drum grooves, exercises, scales, triads, and arpeggios together in one practice app. Work on chord changes, build your timing and technique, and practice improvisation with interactive diagrams and built-in playback. Instantly generate over 1 million unique, theory-based chord progressions across every key. Customize your practice loop, choose your guitar sound and rhythm, and play along at your own pace. No ads. No account required to get started. CHORD PROGRESSIONS • Generate theory-based progressions instantly across every key • Choose 2, 4, 8, 12, or 16 chords for focused loops or longer practice sessions • Select your key, mode, chord types, tempo, and guitar sound • Lock individual chords, change their voicings, or replace them manually • Explore open chords, barre chords, triads, and power chords • Add sevenths, suspended chords, and add9 chords • See chord shapes outlined on your scale diagram during playback or chord preview • Build your own progression to practice specific chord changes RHYTHM & DRUMS • Play along with sampled drum grooves that bring your practice to life • Unlock the full collection of 20 grooves with Pro, including rhythms in 4/4, 3/4, and 6/8 • Customize drum parts from light to busy, add fills, and choose a metronome click • Choose guitar strumming patterns independently of the drum groove • Adjust guitar and drum volumes to suit your practice • Save drum settings and guitar strum with each favorite progression TRIADS & ARPEGGIOS • Explore every triad inversion and how shapes connect across the fretboard • Play along with the Triad Trainer to practice changes in time • Learn moveable arpeggios through CAGED chord shapes • Follow animated TAB that highlights each fret as it plays • Adjust playback tempo, direction, and rhythm to suit your practice EXERCISES & RIFFS • Build technique with hundreds of original guitar drills and riffs, from beginner to advanced • Practice picking, scale sequences, legato, slides, bends, blues, and more • Follow guitar playback with synchronized TAB and an animated fretboard • Adjust tempo and key, loop exercises, and use a count-in and metronome • Filter by difficulty, technique, and type, and save your favorites • Tap the lightning bolt to preview Exercises; Pro unlocks the practice controls SCALES & FRETBOARD • Improvise over progressions with matching mode and pentatonic scale diagrams • Explore CAGED scale shapes individually or across the full fretboard • Choose note or interval labels and highlight triads or characteristic intervals • Move diagrams to your preferred fretboard position • Explore chord shapes with interval, note, or suggested finger-placement labels • Use left-handed diagrams in portrait or landscape UNLOCK STRUMFORGE PRO • Unlimited progression generation and longer progressions • Musical styles for mood-based generation • All drum grooves, customizable kits, fills, and independent guitar strumming • Triad Trainer and Arpeggio Trainer with animated TAB • Exercises with hundreds of drills and riffs, synchronized TAB, and guitar playback • Advanced scale tools and individual CAGED scale shapes • Save, revisit, and share favorite progressions with scale and rhythm settings • Sync favorites and preferences across devices with an account • Track practice automatically with session stats and streaks • Guitar tuner with popular alternate tunings and reference tones • Metronome with tap tempo, subdivisions, swing, and saved presets • Additional 12-string, overdrive, and arpeggiated guitar sounds • Dark mode and saved practice preferences From focused technique drills to exploring the whole fretboard, StrumForge helps you put music theory into practice—and discover ideas for your own songs along the way. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

ModusCycler

Features
Read full description

Turn chord progressions into music you understand. ModusCycler shows you the matching church modes and scales for any progression — on fretboard, TABs, piano and standard notation — and backs you up with a complete jam band. JAM SESSION BUILDER Build your own backing track in seconds: tap chords into the bar grid, get piano accompaniment with musical embellishments (a statistical improviser based on Chopin and Beethoven statistics), plus a precise metronome with swing — hit Play and jam. Launch offer: everyone who joins in the first 6 weeks keeps the Jam Session Builder free forever — afterwards it is a €19.99 in-app purchase. NEW: ESCALATOR — SCALE REFERENCE & SLIDES All seven positions of the major scale as a printable Kiltz/CAGED and 3NPS reference, now right inside the app. The transitions trainer connects positions with slides — and the new out-of-scale slides reveal the pros' trick: change the entire scale family with ONE shape, using a slide formula like "C, 2 frets down and back". You always land on a chord tone, fingering included. NEW: CHEATING CHEAT SHEET WITH SCALE-CHANGE COMBOS Two linked wheels per chord: church mode and scale in shorthand. Below, every mode combination of your progression sorted by effort: no change, one change (there and back) or two — each with its slide formula. Pin chords to keep them fixed; the eScalator opens right with the matching keys. SCALES FOR IMPROVISATION TUTOR The modes·explorer derives church modes step by step on the fretboard: choose a position, understand the mode, play the scale. With Kiltz/CAGED boxes and all seven 3-notes-per-string patterns. FOR EVERY MELODIC INSTRUMENT ModusCycler shows you which notes fit over the chords — in standard notation and by note name, playable on any instrument. Ideal for improvising and melodic accompaniment on saxophone, clarinet, flute, trumpet, violin, xylophone, vibraphone, accordion, harmonica or voice. Fingering diagrams cover guitar and piano; the scale theory applies to all. MORE FEATURES - Fresh tile design: four approaches (Global, Smart, Flexible, Cheating) and four views (fretboard, TABs, piano, notation) at a glance - Build progressions: wheel picker, modal interchange table, circle of fifths, song database - Smart analysis: matching modes with percentage ranking and character descriptions - Undo for chords and modes, key-change dialog with pin - Stage view: all scale diagrams full-screen — print-quality, with a transport bar - Notation with correct key signatures, deviations shown with accidentals - Real piano samples, metronome with sounds and swing - Tutorials: bird's-eye overview + 12-step tour, extensive online manual - 6 languages: English, German, Spanish, French, Italian, Norwegian For everyone who improvises, accompanies flexibly or finally wants to understand modes — guitarists, pianists, wind and brass players, string players, singers, songwriters and producers. TRY THE FULL VERSION FOR FREE On app.moduscycler.com the complete full version runs free in your browser for one day — after that it continues there with limited features. Try everything before you download the app. Looking for modes, church scales, improvisation or jamming? ModusCycler (also "Modus Cycler") brings you scales, modes and chords for your next jam session — improvise on guitar, bass, piano and every melodic instrument.

Screenshots

StrumForge4 screens
ModusCycler4 screens

Verdict

The call

The clearest difference is price: StrumForge at Free against ModusCycler's $11.99. StrumForge also leads on update cadence (every 2 days vs fortnightly). ModusCycler's advantage is in-app purchases (none vs 4). On ads, device support and iOS requirement 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

StrumForge is free to download; ModusCycler costs $11.99 up front. StrumForge sells 4 in-app purchases, starting at $2.99 per 7 days. ModusCycler asks for nothing beyond the download.

UpkeepUpdate frequency

StrumForge ships an update every 2 days, ModusCycler fortnightly. Both last shipped on October 28, 2026.

Scorecard3 real differences · 7 level
StrumForge versus ModusCycler: the parameters behind the verdict, then further details
ParameterStrumForgeModusCycler
PriceFree — better$11.99
Rating4.8 (60 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings60 — better—
Update frequencyEvery 2 days — betterFortnightly
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size70 MB50 MB
Age rating4+4+
DeveloperAdam SpainRobert Ulrich Seidel Dr

In-app purchases

4 purchases

StrumForge

Subscriptions3
  • StrumForge Pro Weekly7 Days trial$2.997 Days
  • StrumForge Pro Monthly$4.991 Month
  • StrumForge Pro Annual$24.991 Year
One-time1
  • Lifetime Pro$49.99
None

ModusCycler

No in-app purchases

Questions

Is StrumForge free?
StrumForge is free to download, with in-app purchases available.
Is ModusCycler free?
ModusCycler costs $11.99, with no in-app purchases.
Do StrumForge or ModusCycler have ads?
Neither StrumForge nor ModusCycler shows ads.
Which is updated more often, StrumForge or ModusCycler?
StrumForge ships an update every 2 days, and ModusCycler fortnightly. Most recently, StrumForge was updated on October 28, 2026 and ModusCycler on October 28, 2026.

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