DM1 for iPhone vs ButterSynth
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DM1 for iPhone
Transform your iPhone into a powerful beat-making machine with this advanced vintage drum machine. Create intricate rhythms with a step sequencer, play beats on drum pads, and apply a wide range of real-time effects. Easily compose songs and export your creations.
- 154 electronic drum kits
- Step sequencer
- Drum pads with quantized recording
- Mixer with channel controls
- Real-time FX trackpads
- Song composer with timeline editing
- Instrument mode for melodies
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DM1 is an advanced vintage Drum Machine. It turns your iPhone into a fun and creative beat making machine. Easy and fast to use, loaded with 154 superb electronic drum kits and beautiful hyper-realistic graphics, DM1 has been designed for a lot of instant fun. As electronic musicians ourselves, we, at Fingerlab, have developed DM1 with the intention of delivering the perfect mix between fun playability and powerful sonic capacities. We always keep in mind the importance of a beautiful design with the right balance of powerful abilities while avoiding clumsy, overbusy interfaces. Check our 154 electronic drum kits. 42 classic vintage drum kits plus 112 in-house produced electronic kits, edited and mastered at Fingerlab professional studio. DM1 offers 5 main sections: 1 - THE STEP SEQUENCER frees your imagination with a smart use of the multi-touch screen. Just turn on and off steps in your sequence with the tip of your fingers to create cool beats, or unexpected rhythms! 2 - THE DRUM PADS simply lets you play and record the beat that tickles your fingers. No need to be a first-class drummer, automatic quantize does the work for you. 3 - THE MIXER for quick and subtle sound mixing of your drum kits. Featuring settings for volume, pitch, sample length, custom drum kit element for each channel, mute and solo mode. 4 - THE FX TRACKPADS a creative FX trackpad to distort, modulate and transform your beats. The effects include: Overdrive, Delay, Reverb, Phaser, Formant, Dalek, Filter, Compressor, Envelope follower, Dub Delay, Texturizer, Robotizer, and Noise Gate. 5 - THE SONG COMPOSER allows you to quickly make a song with the beat patterns you have created. Just drag and drop the patterns onto the timeline. Fast and easy. Specifications: - Retina Display - Graphic design by Jonas Eriksson - Smart ergonomy for fast creativity and fun - 108 vintage and produced drum kits, mastered at in-house Fingerlab Sound Studios - 48 additional drum kits available with In-App Purchases - Instrument mode allowing to add bassline, chord and melody - 3 instruments: Piano, Korg MicroPreset and Cello Strings - 3 other instrument (Clavinet, Marimba, MiniLogue) are available with In-App Purchases - Step Sequencer with multi-touch matrix - Mixer page with pitch, length and level rotary controls, pan controls, and custom drum kit per channel - 9 Drum pads, quantized recording - FX Trackpad for real-time sonic destruction - 16 or 32 Steps per patterns - The Randomizer tool - Extra fast drum kit loading - Playable pattern selection for extra creativity - Mode song with intuitive editing - High-quality export to SoundCloud, DropBox, Email, iTunes shared folder, AudioCopy or any other apps - Audio background mode - Audiobus support - Import & Export your song project (DropBox, Mail, iTunes folder) - Full Midi implementation - Inter-App Audio support Watch DM1 video trailer on YouTube Fingerlab's channel: http://www.youtube.com/fingerlab Feel free to let us know what you think and what you'd like to see in the next DM1 update. Enjoy! Watch us : vimeo.com/ fingerlab Visit us : fingerlab.net Follow us : twitter.com/ fingerlab Contact us : contact@fingerlab.net Powered by Fingerlab http://www.fingerlab.net
ButterSynth
This powerful synthesizer app offers a hybrid approach, combining wavetable, FM, and sample-based synthesis. Create unique sounds with a vast sonic range, advanced modulation, and a built-in effects rack. It caters to both experienced sound designers and beginners with extensive presets.
- Hybrid 6-oscillator synthesis (wavetable, FM, sample)
- Built-in wavetable editor
- FM engine with 4 operators
- Sample and Granulator engines
- 32-slot modulation matrix
- Internal FX rack with 16 modules
- Extensive preset library
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ButterSynth is a hybrid 6-oscillator wavetable/FM/sample-based AUV3 and standalone synthesizer with a vast sonic range, from gentle pads to screaming leads and basslines. Mix any combination of wavetable, FM, sample and other synthesis engines for one truly massive sound. For the more advanced users, you'll love using ButterSynth's thoughtfully designed interface, incredibly powerful modulation matrix, fully-featured internal FX rack, factory waveform and sample libraries, and almost limitless scope for fun, experimentation and sound design. For less experienced synth programmers, ButterSynth includes a library of hundreds of ready-to-use presets, sparking your creativity to start making music right away. Headline features include - Mix and match any combination of 6 synthesis engines to either emulate your favourite synths of yester-year or build a synth ready for the future. - Dual-wavetable engines also feature 9 phase modes, wave folding, and deep unison controls modelled on vintage hardware synths. - Built-in wavetable editor gives you the ability to tweak, morph, and hand-draw your own custom wavetables, with each wavetable supporting up to 256 frames. - FM engine offers 4 operators with a selection of 12 modulation paths. Each operator can be loaded with any waveform from the factory or user library, and can also self-modulate via the feedback dial. - Sample and Granulator engines both let you load samples (either imported or from the factory library) and control precisely how they are chopped, triggered and layered. Both also feature the same powerful unison modes available in the WT engine. - Highly configurable 32-slot modulation matrix featuring precise mix/max ranges, self-modulation (via the amount target), plus configurable response curves and layer modes. Simply long-tap any parameter to set it as a Mod destination! - Full suite of versatile control sources which includes: 4x MSEG-style looping curve envelopes, 4x LFOs, 4x step sequencers, X/Y pad with motion recording, 8x Macro dials and a powerful arpeggiator inspired by Kirnu Interactive’s Cream. - The EFX rack lets you build your own insert effects chain using any combination of the 16 built-in FX modules. Modules available at launch include delay, reverb, distortion, chorus, OTT compression etc. Note - FX parameters can also be targeted by the mod matrix, unlocking the possibility to program ‘per voice’ modulated effects. - All presets, wavetables, samples and other settings are stored in the Files app, making bulk import/export, backup and community sharing quick and easy. - All of this is housed in an irresistibly designed 4-tab UI that makes synth programming quick and fun.
Screenshots
Verdict
The clearest difference is price: DM1 for iPhone at $4.99 against ButterSynth's $19.99. DM1 for iPhone also leads on review sentiment (73% vs 59%). ButterSynth's advantage is in-app purchases (none vs 1). On rating, ratings volume, update cadence and 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
DM1 for iPhone costs $4.99 and ButterSynth $19.99 up front. DM1 for iPhone sells 1 one-off in-app purchase. ButterSynth asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.1 for DM1 for iPhone against 4.0 for ButterSynth. Both are backed by a comparable volume of ratings — 80 and 63 respectively. Written reviews are what separate them: 73% of DM1 for iPhone's written reviews are positive against 59% of ButterSynth's.
DM1 for iPhone ships an update every 3 months, ButterSynth every 2 months. The most recent releases landed on October 24, 2026 and October 21, 2026 respectively.
| Parameter | DM1 for iPhone | ButterSynth |
|---|---|---|
| Price | $4.99 — better | $19.99 |
| Rating | 4.1 (80 ratings) — better | 4.0 (63 ratings) |
| Positive reviews | 73.3% of reviews — better | 59.2% of reviews |
| Number of ratings | 80 — better | 63 |
| Update frequency | Every 3 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases — better | Paid |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.6 | 14.0 — better |
| Further details — not scored | ||
| Size | 253 MB | 468 MB |
| Age rating | 4+ | 4+ |
| Developer | Fingerlab | Arto Vaarala |
Customer experience
DM1 for iPhone
ButterSynth
User reviews
DM1 for iPhone
From 80 App Store ratingsWhat we love
- 💎 Best drum machine app
- 🎨 Great variety of drum sounds and kits
- 🎚️ Intuitive and easy to use interface
- 🔊 High-quality sound
- 💰 Excellent value for money
Room to improve
- 🐛 Crashes and stability issues
- 📱 Compatibility problems on newer devices
- 🔋 Battery drain
- 🔇 Lack of individual track export
- 🕰️ Inaccurate tempo and timing
ButterSynth
From 63 App Store ratingsWhat we love
- ✨ Deep sound design capabilities
- 🎛️ Versatile modulation matrix
- 🔊 Great sound quality
- 💡 Innovative wavetable generator
- 🌟 Serum-like experience
Room to improve
- 📱 Fiddly on small screens
- 🐛 Crashes frequently
- 🐛 Disappears in Cubasis
- 🐛 Spikes CPU usage
- 🐛 Crashes on patch change
Bugs and requests
DM1 for iPhone
Reported bugs
4 issues- Crashes on launch
- Audio distortion and glitches
- Sync and timing issues when exporting to other apps
- Unresponsive controls and UI elements
Requested features
7 requests- Add support for more time signatures (3/4, 5/4, etc.)
- Implement Ableton Link for better sync with other apps
- Allow importing and using custom samples
- Add more effects and per-channel processing
- Implement a save/revert function to avoid losing progress
Show 2 moreShow fewer
- Improve tempo controls with finer adjustment and tap tempo
- Provide individual track export options
ButterSynth
Reported bugs
39 issues- App crashing with AUM
- Disappears in Cubasis randomly
- Crashes all the time inside Logic
- Changing a patch spikes CPU to 99%
- Crashes on every patch change
Show 34 moreShow fewer
- No audio when rendering or freezing track
- Keyboard doesn't load on iPhone
- iOS18 broke ButterSynth (audio recording issues)
- Failed to load as Auv3
- Crashes as soon as a preset is selected
- Some patches hanging/sounding without input
- CPU spikes to 100% on preset switching
- Audio crackles on preset switching
- Sample module has consistent buzz
- LFOs are extremely simple (no phase offset)
- Square wave LFO is not square (has slew)
- Step sequencer always has glide/slew
- Cannot save custom presets
- No undo function in wave table editor
- AUv3 plugin resets when ButterSynth crashes
- Does not show up as auv3 in Cubasis, AUM, or Audio Evolution
- Crashes regularly even on newest iPad
- Preset changes every time play is pressed
- Not resizing appropriately on smaller screens
- Crashes with unison function in AUM
- White noise on crash with unison
- Sound continues after song stops in GarageBand
- Preset changes on stop, rewind, or play in GarageBand
- Keeps crashing in GarageBand (AUv3)
- Patches in standalone sound different as AUv3
- Crashes when hitting play with arpeggiator/sequencer on iPhone
- No keyboard appears in iPhone standalone mode
- Audio Unit Extension quit error on export
- Lots of crashes in standalone and hosted in AUM
- MIDI not working
- Automation still doesn’t work in Logic Pro
- Random LFO is great for recording sequences
- Preset browser closes each time a new preset is selected
- Works as AUv3 after starting in standalone mode
Requested features
20 requests- MPE popup possible on top of the auv3
- Button to hide built-in keyboard
- Buffer size option
- Additional MIDI mappings (e.g., arpeggiator toggle)
- Sustain pedal support
Show 15 moreShow fewer
- Longer LFO speed for evolving soundscapes
- Alternative skins/color themes
- Pinable preset browser
- Virtual keyboard to remain active while browser is pinned
- Make app take up whole screen (no black borders)
- Master detune
- Parameter lock
- More presets
- Fix square wave LFO to be truly square
- Fix step sequencer glide/slew for discrete steps
- Undo function in wave table editor
- Filter key follow button
- Adjust envelope curves (especially release)
- Easier way to adjust modulation matrix amount
- Phase distortion inclusion
In-app purchases
DM1 for iPhone
- All Packs$3.99
ButterSynth
No in-app purchases









