Aether Synth vs MIDI Memos
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Aether Synth
This music creation app offers a professional synthesizer engine with dual-layer sound design and rhythmic motion. It can be used as a standalone workstation or as an AUv3 instrument within compatible iOS hosts for recording and production.
- AUv3 instrument support
- Standalone synth workstation
- Dual preset layering
- Melodic and drum sequencers
- Sampler tools
- Multitrack audio workspace
- Arpeggiator and motion controls
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Aether Synth is an AUv3 synthesizer, sequencer and sampler for iPhone Duo, iPhone and iPad, built for creating expressive sounds that move. Start with a sound, combine two sounds into something new, introduce motion, build a pattern, capture a sample, or simply play. Aether brings synthesis, sequencing, sampling and performance together in one instrument designed to keep ideas moving. CREATE YOUR OWN SOUND Build rich synth patches for pads, basses, leads, textures, atmospheres and evolving sounds. Aether is designed to make sound creation immediate. Shape a patch directly, explore presets for inspiration, or use Random Sound to discover combinations you might not have reached manually. The result can become a finished sound or the starting point for something completely different. DUAL — TWO SOUNDS BECOME ONE Dual lets you combine two independent sounds into a new composite instrument. Choose a sound for A. Choose another for B. Blend between them and shape the result. The two sides can complement each other, contrast with each other, or create something that neither patch produces alone. Save your favorite Blends and return to them later. MAKE SOUNDS MOVE Aether is built around motion as part of the instrument. Use Motion and Random Motion to animate sound over time and create patches that evolve rather than remain static. Movement can be subtle and organic or become a major rhythmic part of the sound. This makes Aether especially suited to evolving pads, shifting textures, rhythmic sounds and patches that respond like performances rather than snapshots. SEQUENCE IDEAS Turn sounds into patterns with Aether's built-in sequencer. Create melodic and rhythmic phrases, experiment with different rates and musical feels, and develop ideas without leaving the instrument. The arpeggiator provides another immediate way to transform held notes and chords into movement, while tempo synchronization keeps rhythmic material locked to the music. SAMPLING Capture and work with audio directly inside Aether. Use sampling alongside synthesis to bring recorded material into the same creative environment as your patches, patterns and performances. A sample can become part of a larger musical idea instead of living in a separate workflow. PERFORM Aether is designed to be played. Use the keyboard and performance controls to shape sounds in real time, then connect a MIDI controller when you want a more traditional playing experience. Velocity, sustain and expressive controls allow patches to respond dynamically instead of behaving like static presets. DISCOVER INSTEAD OF SEARCHING Sometimes you know exactly what sound you want. Sometimes you don't. Random Sound and Random Motion make exploration part of the workflow. Generate a new direction, keep what works, reshape it, combine it with another sound in Dual, and continue from there. The goal is not randomness for its own sake. It is getting from a blank idea to something musically useful quickly. STANDALONE OR AUV3 Use Aether as a standalone instrument on iPhone and iPad, or load it as an AUv3 instrument inside compatible hosts and DAWs. That means the same sound-design environment can work as an instrument on its own or become part of a larger mobile production setup. BUILT FOR MUSICIANS Aether brings together: • Synthesizer sound design • Dual layered instruments and saved Blends • Motion and evolving sound • Random Sound and Random Motion • Preset exploration • Sequencing • Arpeggiation • Sampling • Performance controls • MIDI • Standalone operation • AUv3 plugin support Whether you're designing an evolving ambient texture, building a bass or lead, creating a rhythmic patch, experimenting with layered sounds, or starting a new musical idea from scratch, Aether is designed to keep the distance between inspiration and sound as short as possible. Create a sound. Make it move. Turn it into music.
MIDI Memos
Quickly capture musical ideas with a single tap. Record MIDI from external keyboards or the built-in on-screen piano, then instantly share clean MIDI files to your favorite DAWs. It's a streamlined tool for songwriters and musicians.
- One-tap MIDI recording
- On-screen piano keyboard
- Background recording
- Automatic take splitting
- MIDI file sharing to DAWs
- Take library with search and favorites
- Adjustable tempo and metronome
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MIDI Memos is the fastest way to capture a musical idea on your iPhone or iPad. One button, one tap, you're recording. Play your MIDI keyboard or tap the built-in on-screen piano. Tap stop. You've got a clean Standard MIDI File ready to share to GarageBand, Logic, Ableton, Cubase, or any DAW. That's it. No setup, no tracks, no menus to navigate. WHAT IT DOES • Records MIDI from any Bluetooth or USB-C MIDI keyboard, controller, or pad • Built-in on-screen piano — set the exact number of keys, slide the starting note one key at a time, and play full-width in landscape • Background recording keeps capturing while the screen is locked or you switch to another app • Optional auto-split breaks a long session into separate takes at the silences (off by default) • A quick summary after each take — see the note count, length, detected key, and tempo, then rename, favorite, or discard it on the spot • Plays back every take through a high-quality piano so you can audition immediately • Optional metronome click during recording • Adjustable tempo (40–240 BPM), embedded in every exported file so it imports at the right tempo • Share .mid files instantly via AirDrop, Files, Mail, Messages, or directly to any DAW • Take library with favorites, search, and a 30-day trash so accidental deletes are recoverable • Universal — works on iPhone and iPad • No accounts, no tracking, no ads WHO IT'S FOR • Songwriters who want to capture a melody before it slips away • Producers who need a quick MIDI sketchpad away from the studio • Pianists and keyboardists practicing on a digital piano who want to log a take • Teachers and students who want a no-friction way to record an exercise • Anyone who has ever thought "I had an idea, but by the time I opened my DAW it was gone" WHY IT'S DIFFERENT Most DAWs are powerful and complex. MIDI Memos is the opposite — a single-purpose utility that does one thing well. There is no project to create, no track to arm, no preset to pick. The big red button is the entire interface. PRIVACY Your recordings stay on your device and are never uploaded. There are no accounts and no ads. MIDI Memos sends anonymous usage analytics and crash reports so bugs get fixed; none of it is used to track you across other apps. REQUIREMENTS • iOS 18 or later • iPhone or iPad • A MIDI keyboard via Bluetooth or USB is recommended; on-screen keyboard works too
Screenshots
Verdict
The clearest difference is price: MIDI Memos at Free against Aether Synth's $2.99. MIDI Memos also leads on review sentiment (100% vs 63%) and rating (5.0 vs 4.7). Aether Synth's advantage is ratings volume (10 vs 3). On update cadence, 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
MIDI Memos is free to download; Aether Synth costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
MIDI Memos holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 10 and 3 respectively. Written reviews point the same way: 63% of Aether Synth's written reviews are positive against 100% of MIDI Memos's.
Aether Synth ships an update every 5 days, MIDI Memos every 3 days. The most recent releases landed on November 13, 2026 and November 5, 2026 respectively.
| Parameter | Aether Synth | MIDI Memos |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 4.7 (10 ratings) | 5.0 (3 ratings) — better |
| Positive reviews | 62.5% of reviews | 100.0% of reviews — better |
| Number of ratings | 10 — better | 3 |
| Update frequency | Every 5 days | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 35 MB | 19 MB |
| Age rating | 4+ | 4+ |
| Developer | Jacob Kirk | Mayank Sanganeria |
Customer experience
Aether Synth
MIDI Memos
In-app purchases
Aether Synth
No in-app purchases
MIDI Memos
No in-app purchases









