Comparison

Pure Acid vs Flip Sampler

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

Head to head
About

Pure Acid

This app is a high-quality bassline synthesizer and drum machine inspired by classic 80s hardware. It offers a retro analog sound with modern features for fast and fun music creation. Explore various genres with factory presets and create unique rhythms and basslines.

Highlights
  • AUv3, Ableton Link, AudioBus, IAA support
  • Classic bassline waveforms (Saw, Pulse)
  • Distortion and filter LFO effects
  • 32-step sequencer with pattern editing
  • 16 independent drum parts with customizable sounds
  • Realtime master effects with XY-pad
Read full description

Pure Acid is a top quality bassline synthesizer and drum machine in one app! Inspired by classic hardware bassline synthesizers and rhythm machines, which changed musical world back in 80's, like the legendary TB-303 synthesizer, TR-808 / 707 / 909 rhythm boxes and their numerous replicas, Pure Acid is designed to bring back the feeling of retro analog gear in every detail in terms of sound, as well as to provide new functions previously unavailable in the original devices to make your music creation workflow fast and fun! A large number of factory preset patterns will immerse you into an exciting world of Acid House, Techno, Hardcore and Big Beat music genres, which will inspire you to create your own basslines and rhythms for your compositions! You can use Pure Acid app as a ready-to-go realtime musical instrument (groove box) in your jam sessions together with Ableton Link to synchronize it with the rest of your music gear. Its bassline editing system and randomization options will be handy to create unique groovy basslines easily. Realtime master effects with XY-pad controls can add expression to your live performance. You can also use Pure Acid with AudioBus, AUM or other IAA-supporting apps to create complex and interesting sound setups. Features: • supports AUv3, Ableton Link, AudioBus, Inter-App Audio, Core Midi, Virtual Midi In/Out, Bluetooth Midi • AudioBus state saving support • 64-bit sound engine • Midi Learn • Export to midi file • includes Multiple Output AUv3 plugin with 6 audio output busses Bassline Section: • 2 classic bassline waveforms: Saw and Pulse • classic knobs: Tune, Cutoff, Resonance, Env Mod, Decay and Accent • Distortion effect with amount, HPF and Boost knobs • filter LFO with rate and depth knobs Sequencer Section: • up to 12 bassline patterns can be stored in one preset • up to 32 steps per each bassline pattern • patterns can be chained together to create more complex patterns • pattern Tempo and Swing parameters • Gate parameter, which allows you to adjust bass note lengths • Pattern Editor allows you to copy, transpose patterns, shift notes left/right, insert or delete a note, variate (randomize all note properties expect pitch), shuffle (randomize notes order only), reverse and compose patterns using Bassline Composer function • onscreen keyboard allows you to enter bassline notes in a comfortable way. You can also record basslines in realtime. Drums Section: • 16 independent drum parts • 35 different classic drum sounds with ability to tune your own drum kit • each drum part sound has its own parameters: Tune, Decay, Attack/Snap/Color, FX A send, FX B send, Boost, Pan, Level • up to 12 drum patterns and 4 drum fill patterns per preset • 16 steps per each drum pattern, with ability to add 16 "backbeat" steps between main steps (32 steps per drum pattern in total) • patterns can be chained together to create more complex patterns • Swing and Flam features • Total Accent part with adjustable total accent value can give you ability to "highlight" specific steps in your drum pattern • new: step conditions for drum steps Mixer Section: • 2 mixer channels: Bassline and Drums • Drive effect for each channel • 2 send effect pedals: FX A and FX B • 14 send effect types • send effect can be routed to either master output, MFX or another send effect (FX A -> FX B), which allows to chain several effects one after another • MFX pedal with 22 effect types to choose from • FX A and FX B send amount knobs for each mixer channel • XY-pad on each effect pedal to control their parameters • Master Limiter effect to prevent sound clipping and more: • Unlimited number of user presets • 84 factory presets • Audio export to wav file (16, 24 or 32 bit) • Preset / Bank Share function • Selectable UI color schemes with ability to adjust colors manually • Can work either as a standalone app, or as AUv3 audio unit plugin • Designed for both iPad and iPhone

About

Flip Sampler

Create music on the go with this intuitive, sample-based studio. Import or record sounds, shape them with effects, and arrange them into full tracks. Features include a piano roll, automation, and live performance tools.

Highlights
  • Sample-based music creation
  • Import/record sounds
  • Built-in effects and editing
  • Piano roll and automation
  • Song arrangement and mixing
  • Live performance features
  • Export tracks and stems
Features
Currently charting
Read full description

Flip is a sample-based mobile music studio that was designed for a fast and intuitive work flow. Import your own sounds via AirDrop or the Files app, or record sounds directly with your device's microphone or a connected iOS interface. As soon as you record a sound it’s available to be played on drum pads as well as being mapped across a keyboard. Sounds can be subtly shaped or entirely transformed using the built-in effects and easy-to-use editing tools. You can record a quantized or unquantized performance on the pads or keyboard. There is also a full piano roll where you can enter and edit notes and velocities. Record knob movements or draw automation by hand to bring even more life to your sounds. Every automation lane can also have its own independent length, for polymetric and generative music possibilities. Create up to 16 different sections for your song and drag and drop them into any order to create your arrangement. Mixing and mastering tools allow you to finish a full track without ever leaving your phone. You can export your full track, or hit the tape icon and record the live output of the app while you tweak anything on the fly. Both options allow you to capture individual track stems as well! A performance page lets you trigger your patterns live while controlling a global filter, assignable pitch bends and reverb sends, and a random fill generator. Artist packs are available in-app at $3.99 or less, which include original sounds and projects from Andrew Huang, Cuckoo, Chuck Sutton, Kilamanzego, Pusher, and more on the way all the time. Features: - 9 track sampler - 4 effects per track: Delay, Filter, Chorus, Bitcrush - Graphic EQ per track - Monophonic or up to 16-note polyphonic playback per sample - Adjustable pitch, volume, playback direction, sample start and stop points - Looping Envelope with forward, backward, both (ping pong) direction - 19 automatable parameters per track - Independent lengths for each automation lane - Automation can be recorded via knob movements or drawn by hand - Drum pad and keyboard input - Full piano roll with 10 octaves, note velocity, editing tools - Randomization over sample selection for quick inspiration - Randomization over note position to create surprising variations - Drag-and-drop song arrangement page - Global reverb with individual track sends - Mixing and mastering tools - Powerful performance features for creating instant fills, pitch shifts, reverb sends, and global low or high pass filtering - Export full track and stems - Live recording of performances - Metronome with tap tempo and swing/shuffle - Ableton Link integration for easy syncing with other devices over WiFi - Share projects and sounds via AirDrop, email, etc. - Undo and redo

Screenshots

Pure Acid4 screens
Flip Sampler4 screens

Verdict

The call

The clearest difference is rating: Pure Acid at 4.9 against Flip Sampler's 4.2. Pure Acid also leads on review sentiment (94% vs 65%) and iOS requirement (13.0 vs 15.6). Flip Sampler's advantage is in-app purchases (none vs 2) and price ($11.99 vs $14.99). On ratings volume, update cadence, ads and monetization model 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

Pure Acid costs $14.99 and Flip Sampler $11.99 up front. Pure Acid sells 2 one-off in-app purchases. Flip Sampler asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Pure Acid holds the better App Store score, 4.9 against 4.2. Both are backed by a comparable volume of ratings — 167 and 326 respectively. Written reviews point the same way: 94% of Pure Acid's written reviews are positive against 65% of Flip Sampler's.

UpkeepUpdate frequency

Pure Acid ships an update every 3 weeks, Flip Sampler every 4 weeks. The most recent releases landed on October 17, 2026 and October 19, 2026 respectively.

Scorecard6 real differences · 5 level
Pure Acid versus Flip Sampler: the parameters behind the verdict, then further details
ParameterPure AcidFlip Sampler
Price$14.99$11.99 — better
Rating4.9 (167 ratings) — better4.2 (326 ratings)
Positive reviews94.1% of reviews — better64.5% of reviews
Number of ratings167326 — better
Update frequencyEvery 3 weeks — betterEvery 4 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree with in-app purchases
Best chart rank—#182 — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.6
Further details — not scored
Size44 MB208 MB
Age rating4+4+
DeveloperDmitrij PavlovSuture Sound Inc.

Customer experience

Pure Acid

All ratings167 ratings
Positive97.0%
Neutral1.8%
Negative1.2%
Written reviews152 reviews
Positive94.1%
Neutral2.6%
Negative3.3%

Flip Sampler

All ratings326 ratings
Positive76.4%
Neutral11.3%
Negative12.3%
Written reviews234 reviews
Positive64.5%
Neutral18.4%
Negative17.1%

User reviews

Pure Acid

From 167 App Store ratings

What we love

  • 🚀 Powerful and feature-rich
  • 👍 Intuitive and easy to use
  • 🎶 Excellent sound quality
  • 🎛️ Great sequencing and programming capabilities
  • 🔌 Seamless integration with other apps and hardware

Room to improve

  • 🐛 Occasional audio cutoff or sync issues
  • 🔍 Lack of detailed documentation or tutorials
  • 🔀 Limitations in pattern length and drum sequencing

Flip Sampler

From 326 App Store ratings

What we love

  • 🚀 Intuitive and easy to use
  • 👍 Powerful sampling and automation features
  • 💡 Great for sketching out musical ideas on the go
  • 🚀 Responsive and fast workflow
  • 👍 Comprehensive and feature-rich for the price

Room to improve

  • 🐛 Frequent crashes and stability issues
  • 🐛 Bugs with MIDI, automation, and sample management
  • 👎 Limited to 9 sample pads
  • 👎 Glitchy piano roll and note editing
  • 👎 Delay and latency issues with Bluetooth devices

Bugs and requests

Pure Acid

Reported bugs

2 issues
  • GUI scaling issues on smaller devices
  • Crashes or freezes on certain devices

Requested features

4 requests
  • Ability to import MIDI files
  • Standalone drum machine mode
  • Expanded drum sample library
  • Knob/parameter automation recording

Flip Sampler

Reported bugs

5 issues
  • Samples randomly re-pitch or lose settings
  • Undo function doesn't work as expected
  • Exported tracks have different key/pitch than original
  • Metronome glitches and stops working
  • Dynamic island on iPhone 14 Pro covers UI elements

Requested features

5 requests
  • Expand to 16 or more sample pads
  • Add longer loop/pattern lengths
  • Implement MIDI controller support
  • Improve sample organization and folder management
  • Add resampling and time-stretching capabilities

In-app purchases

2 purchases

Pure Acid

One-time2
  • Ukrainian style color scheme$4.99
  • Ukrainian style app icon$4.99
None

Flip Sampler

No in-app purchases

Questions

Is Pure Acid free?
Pure Acid costs $14.99, and also offers in-app purchases.
Is Flip Sampler free?
Flip Sampler costs $11.99, with no in-app purchases.
Which has better reviews, Pure Acid or Flip Sampler?
Pure Acid is rated higher. Pure Acid averages 4.9 out of 5 from 167 ratings, while Flip Sampler averages 4.2 from 326 ratings.
Do Pure Acid or Flip Sampler have ads?
Neither Pure Acid nor Flip Sampler shows ads.
Which is updated more often, Pure Acid or Flip Sampler?
Pure Acid ships an update every 3 weeks, and Flip Sampler every 4 weeks. Most recently, Pure Acid was updated on October 17, 2026 and Flip Sampler on October 19, 2026.

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