Comparison

Mighty Synth Sampler vs GrimoHex

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

Head to head
About

Mighty Synth Sampler

Transform any sound into a playable instrument with this powerful synth and sampler. Create custom instruments, layer sounds, and perform with your unique audio creations. Supports SoundFonts and offers advanced synthesis features.

Highlights
  • Three-oscillator synth engine
  • 16-slot sampler with loop points
  • Audio recording and import
  • SoundFont (SF2/SFZ) support
  • AUv3 plugins for DAWs
  • Downloadable sound packs
Features
Read full description

Mighty Synth Sampler turns any sound into a playable instrument. It's a free, fully-featured synth and sampler for iPhone, iPad, and Mac built for musicians who want to create, layer, and perform with their own sounds and SoundFonts (SF2/SFZ). ROMPLERS RULE! The app is built around four pillars: • The Synth A full subtractive synth engine powered by AudioKit. Three independent oscillator layers with volume, semitone, detune, and pan controls. Shape your sound with amplitude and filter envelopes, a low-pass filter, LFO, unison, glide, drive, and more. A built-in arpeggiator, flexible play surfaces, and MIDI support round out a synth that's deep without being overwhelming. • The Sampler Build your own sample-based instruments from scratch. Record directly in the app or import audio files, map them across the keys, set loop points, adjust root notes and note ranges, and save your creations as reusable instruments and banks. • Sound Packs The app comes with a built-in starter bank and supports downloadable sound packs both free and paid. New packs are added to the store without requiring an app update. You can also create your own banks and share them with others. • AUv3 Support Four AUv3 plugins in one app: Mighty Synth (instrument), Mighty Sampler (audio effect for capturing and building instruments), Mighty Effects (standalone effects chain), and Mighty MIDI (MIDI processor and play interface). Load them individually in your favorite DAW or AUv3 host. Features • Free app with all core features included • Three-oscillator synth engine with detune, pan, and semitone control per layer • Amplitude and filter envelopes with per-oscillator scope • Low-pass filter with cutoff, resonance, and key tracking • LFO targeting filter cutoff, pitch, or volume • Unison with up to 8 voices, width, detune, and offset control • Effects: reverb, delay, chorus, drive, phaser, compressor, panner, and more • Built-in arpeggiator with BPM sync, octave range, and pattern modes • Multiple play surfaces: keys, pads, All 4ths layout, scale layout, and more • 16-slot sampler with loop points, root note mapping, and note range editing • Record audio directly in-app • Import audio files and SF2/SFZ SoundFonts • Downloadable sound packs (free and paid) • Create, export, and share your own instrument banks • Four AUv3 plugins: Mighty Synth, Mighty Sampler, Mighty Effects, Mighty MIDI • MIDI CC mapping • Available for iPhone, iPad, and Mac Thank You & Enjoy! Nick Culbertson MobyPixel.com

About

GrimoHex

Create beats quickly with a tactile, hardware-inspired sampler and step sequencer. Record, shape, and sequence sounds for fast music production on your iPhone. Ideal for producers and beat makers on the go.

Highlights
  • Hardware-style pad workflow
  • 128-step sequencing
  • Sample recording and playback
  • Sample editing tools
  • Real-time sound shaping
  • MIDI-focused sequencing
  • Pattern-based music creation
Features
Read full description

GrimoHex is a modern sampler and step sequencer built for fast, tactile beat creation on iPhone. Designed for producers, electronic musicians, and mobile beat makers, GrimoHex gives you a focused hardware-inspired workflow without the clutter of a full DAW. Record sounds, shape samples, build patterns, and perform ideas quickly from a compact pad-based interface. At its core, GrimoHex combines a hands-on sampler, drum machine, and step sequencer into one streamlined music production app. It is made for sketching beats, building loops, sequencing drums, triggering samples, and creating patterns wherever inspiration hits. Key features: • Hardware-style pad workflow for fast beat making • 128-step sequencing for detailed pattern creation • Sample recording and playback • Trim, zoom, and sample editing tools • Real-time sound shaping controls • MIDI-focused sequencing workflow • Pattern-based music creation • Clean interface designed for speed and focus • Built for mobile producers, beat makers, and electronic artists GrimoHex is ideal for making drum patterns, sample-based beats, loops, sketches, and performance-ready ideas on the go. Whether you are building rhythms from recorded samples, sequencing external gear, or creating patterns directly on your phone, GrimoHex keeps the process fast and musical. A focused sampler. A tactile sequencer. A compact groovebox for iPhone.

Screenshots

Mighty Synth Sampler4 screens
GrimoHex4 screens

Verdict

The call

The clearest difference is price: Mighty Synth Sampler at Free against GrimoHex's $12.99. Mighty Synth Sampler also leads on ratings volume (40 vs 1). GrimoHex's advantage is in-app purchases (none vs 3) and review sentiment (100% vs 83%). 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

Mighty Synth Sampler is free to download; GrimoHex costs $12.99 up front. Mighty Synth Sampler sells 3 one-off in-app purchases. GrimoHex asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

GrimoHex holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Mighty Synth Sampler has 40 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 83% of Mighty Synth Sampler's written reviews are positive against 100% of GrimoHex's.

UpkeepUpdate frequency

Mighty Synth Sampler ships an update fortnightly, GrimoHex every 5 days. The most recent releases landed on September 30, 2026 and September 21, 2026 respectively.

Scorecard7 real differences · 3 level
Mighty Synth Sampler versus GrimoHex: the parameters behind the verdict, then further details
ParameterMighty Synth SamplerGrimoHex
PriceFree — better$12.99
Rating4.8 (40 ratings)5.0 (1 ratings) — better
Positive reviews83.3% of reviews100.0% of reviews — better
Number of ratings40 — better1
Update frequencyFortnightlyEvery 5 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPad, Mac — betteriPhone, iPad
Requires iOS16.016.0
Further details — not scored
Size158 MB5 MB
Age rating4+4+
DeveloperMoby PixelJames Draper

Customer experience

Mighty Synth Sampler

All ratings40 ratings
Positive92.5%
Neutral5.0%
Negative2.5%
Written reviews30 reviews
Positive83.3%
Neutral10.0%
Negative6.7%

GrimoHex

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

3 purchases

Mighty Synth Sampler

One-time3
  • Vintage Synth Sound Pack$4.99
  • Super Chiptune Sound Pack$4.99
  • Tape Drift Sound Pack$4.99
None

GrimoHex

No in-app purchases

Questions

Is Mighty Synth Sampler free?
Mighty Synth Sampler is free to download, with in-app purchases available.
Is GrimoHex free?
GrimoHex costs $12.99, with no in-app purchases.
Which has better reviews, Mighty Synth Sampler or GrimoHex?
GrimoHex is rated higher. Mighty Synth Sampler averages 4.8 out of 5 from 40 ratings, while GrimoHex averages 5.0 from 1 ratings.
Do Mighty Synth Sampler or GrimoHex have ads?
Neither Mighty Synth Sampler nor GrimoHex shows ads.
Which is updated more often, Mighty Synth Sampler or GrimoHex?
Mighty Synth Sampler ships an update fortnightly, and GrimoHex every 5 days. Most recently, Mighty Synth Sampler was updated on September 30, 2026 and GrimoHex on September 21, 2026.

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