Comparison

Blofeld vs Strum

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

Head to head
About

Blofeld

Experience the classic Waldorf synthesizer sound on your iPad with this app. It offers a powerful wavetable engine for rich, expressive tones and can control hardware units. Compatible with existing soundsets and popular hosts, it brings iconic sounds to your mobile music production.

Highlights
  • Wavetable synthesis engine
  • AUv3 support
  • Hardware control
  • Compatible with existing soundsets
  • Classic Waldorf sound character
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The versatile Waldorf synthesizer classic Blofeld now also available for iPad including auv3 for hosts like Logic, Garageband, Cubasis, AUM and others. With the Blofeld app you can also control your hardware and it is compatible with existing Blofeld soundsets. The sound generation of the Blofeld plugin delivers the typical fat and rich Waldorf sound character that so many Waldorf users worldwide love when they are playing their Blofeld, Q, Q+, Microwave, Microwave II/XT or even the flagship, the Wave. The secret of its sound is a powerful wavetable engine that enables these intense and expressive sounds. This unique synthesis system is based on the revolutionary PPG synthesizers of the early 80s. When you hear the Blofeld for the first time, you’ll immediately remember those edgy, assertive or bell-like timbres that have been an integral part of countless worldwide hits since the PPG era.

About

Strum

Features
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Strum is a clean, focused tablature editor for ukulele, guitar, and electric guitar. Write a song, drop in chords, set a strum pattern, and hear it back on a real recorded instrument - all on one screen, laid out the way fretted-instrument players think about a song. » Tab-first editing › Choose what you see: standard staff, tablature, beat counters, chord boxes, chord names, strum directions, and lyrics. › Tap any beat to add or edit notes from chords or manual frets. Copy a measure and paste it anywhere, or duplicate whole sections. › Section labels, repeat barlines, and per-section time signatures: a 5/4 bridge inside a 4/4 song is a two-tap change. » Capo, written the way songbooks write it › Set a capo on any song and playback moves to the real sounding pitch, while the tab keeps showing the frets you actually hold. › Chord names do not change - a C shape is still "C" - and a "Capo 3" badge sits on the song and on exported PDFs. › Standard notation follows the capo, because notation shows what you hear. › The tuner knows too: tune the open strings as usual, then switch to the capoed pitches to check intonation. » Real instruments, not a synth › In Instrument mode nothing you hear is synthesised. The ukulele was recorded note by note for this app, so chords ring and fade the way the real thing does - body taps and muted chucks included. › Guitar and electric guitar are sampled from real instruments too. If you would rather have the lighter built-in synth, it is one switch in Settings, set per device. » Pay once, play forever › No subscriptions, no accounts, no ads. Buy Strum once, and it's yours. » Every tuning, and a tuner that knows them › Ukulele: high-G, low-G, Baritone. Guitar and electric guitar: Standard, Eb half-step-down, Drop C, Drop D - each with its own full chord library. › Build a custom tuning at any open-string pitch, or hide the ones you never use. › The built-in tuner handles all of them, custom ones included, and can set a custom tuning by ear from a plucked string. › An adaptive noise gate learns your room's background noise, ignoring voices and fans for a jitter-free needle, and it snaps straight to the correct string when you switch notes. › Set the concert pitch anywhere from 415 Hz to 466 Hz, so an ensemble at 442 or a baroque group at 415 is one tap away. » Practice hub › Follow-tab highlights the current beat and chord as it plays, auto-scrolling your tab hands-free. › The in-song metronome locks to your sheet music's time signature and subdivision, so it never drifts out of phase. › Rhythm Training builds speed with automated tempo ramps and a live progress dashboard. › Drop-Out Training mutes the click after a few measures, to test whether you drift. » Chords and strum patterns › A library of common ukulele and guitar shapes ready to drop into a beat, plus your own built in the multi-fret finger editor. › Change a fingering globally, or long-press a chord in the Beat Editor to override it for one song. › Build strum patterns from up and down strokes, arpeggios, fingerstyle, chucks, mutes, and rests. Save them, browse the built-in library by time signature, or set per-song and per-section overrides. » iPhone, iPad, and Mac › Strum scales from a quick lookup on your phone to a full editing surface on iPad or Mac. Your library syncs through your private iCloud account, so a song you wrote on the couch is waiting on your iPad at practice. » PDF export and sharing › Export any song as a clean PDF or image to print and share, or send the native .strum file to other players. » Private by default › Songs, folders, sections, custom chords, tunings, patterns, and preferences sync through your private Apple CloudKit database. › The microphone is used only inside the tuner - audio is processed on-device and never recorded or sent anywhere. › No accounts. No analytics. No third-party servers. Your songs never leave Apple's infrastructure.

Screenshots

Strum4 screens

Verdict

The call

The clearest difference is price: Strum at $3.99 against Blofeld's $24.99. Strum also leads on update cadence (every 5 days vs every 3 weeks). Blofeld's advantage is iOS requirement (16.0 vs 26.0). On ads, in-app purchases and device support 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

Blofeld costs $24.99 and Strum $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Blofeld ships an update every 3 weeks, Strum every 5 days. The most recent releases landed on October 15, 2026 and October 11, 2026 respectively.

Scorecard3 real differences · 7 level
Blofeld versus Strum: the parameters behind the verdict, then further details
ParameterBlofeldStrum
Price$24.99$3.99 — better
Rating4.6 (28 ratings) — better—
Positive reviews62.1% of reviews—
Number of ratings28 — better—
Update frequencyEvery 3 weeksEvery 5 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPadiPhone, iPad — better
Requires iOS16.0 — better26.0
Further details — not scored
Size117 MB55 MB
Age rating4+4+
DeveloperWaldorf MusicMateusz Dabrowski

Bugs and requests

Blofeld

Reported bugs

2 issues
  • No presets at first, had to delete and re-download the app
  • Some old sysex files don't import properly

Requested features

2 requests
  • Physical emulation mode based on the desktop hardware device
  • Ability to favorite presets

Strum

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Blofeld

No in-app purchases

None

Strum

No in-app purchases

Questions

Is Blofeld free?
Blofeld costs $24.99, with no in-app purchases.
Is Strum free?
Strum costs $3.99, with no in-app purchases.
Do Blofeld or Strum have ads?
Neither Blofeld nor Strum shows ads.
Which is updated more often, Blofeld or Strum?
Blofeld ships an update every 3 weeks, and Strum every 5 days. Most recently, Blofeld was updated on October 15, 2026 and Strum on October 11, 2026.

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