Seyfert vs Nocturne LoFi
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Seyfert
This music effect plugin creates unique echoes that orbit and revolve around the listener. It offers advanced control over pitch, depth, and tone for each echo, with a built-in reverb and EQ for a rich soundscape. It functions as a standalone app or an Audio Unit for music production software.
- Orbital echo generation
- Spin and Doppler pitch-bend effects
- 3D binaural imaging
- Octave shimmer and transpose
- Per-echo tone and drive
- Echo-focused reverb and EQ
- Standalone and AUv3 support
Read full descriptionHide full description
Seyfert is a delay unlike your others: every echo spawns at its own place in an orbit around you, and the whole constellation slowly revolves. Turn up Feedback and you don't just add repeats, you spawn more echoes into the orbit, from a single tight slap to a dense, spiralling cloud. Spin revolves the whole field around you. Doppler bends the echoes in pitch as they whirl toward and away. 3D wraps them around your head on headphones. Lift the repeats an octave into crystalline shimmer, drop them a sub-octave for weight, or detune them into a chorus. A lush reverb blooms around the echoes, never the dry signal, so your source stays clear while the repeats dissolve into space. Features: - Orbital echoes, where Feedback sets how many circle you - Spin, from a gentle drift to a full whirl - Doppler pitch-bend as the orbit turns - 3D binaural imaging for headphones - Shimmer and transpose, up or down one octave (octaves, fifths, sub-octaves) - Per-echo Trail tone, tape Wobble, and Drive - Lush reverb applied to the echoes - Full 5-band EQ on the wet signal - Orbit and Ping-Pong patterns, tempo sync - 18 factory presets, plus save your own - Standalone app and Audio Unit (AUv3) for GarageBand, AUM, Logic, and more No accounts, no tracking, no data collected. Everything stays on your device.
Nocturne LoFi
Create personalized soundscapes for focus, relaxation, or sleep with generative music. Explore diverse immersive worlds and customize your audio experience with real-time controls. Save and share your creations, or use it as an instrument for music production.
- Generative real-time music mixing
- Immersive sound worlds with distinct identities
- Customizable mood, rhythm, and tone controls
- Focus timer and sleep fade functionality
- Background playback and system controls
- Save and sync custom sound combinations
- Export audio as M4A files
- AUv3 instrument extension for music creators
Read full descriptionHide full description
Nocturne LoFi is an immersive generative LoFi and ambient music studio for focus, reading, rest, sleep, and late-night creativity. Choose a scene and let its beats, melodies, and environmental textures evolve in real time. Nocturne does not simply repeat one short recording, so each session feels familiar without sounding exactly the same. 【11 IMMERSIVE SCENES】 Travel from Rainy Desk, Late Night Study, Midnight Café, and Night Train to VHS Memory, Forest Cabin, Space Radio, Harbor Dawn, Sunday Morning, Thunderstorm, and Rainy Day. Every scene has its own musical structure and atmosphere. Shape mood, BPM, tone, space, motion, stereo width, and ambience, or generate a fresh variation. Save favorite combinations and return directly to their scenes in Immersive Mode. 【BUILD YOUR OWN SCENES】 Import audio into the shared library, stack up to three layers, and adjust each layer’s volume, pan, and playback speed. Blend your sounds with a generated Nocturne bed to create a personal atmosphere. Choose a built-in vector cover or import, crop, and preview your own image. Pick a clock position, then enjoy your custom scene alongside the built-in scenes on the Home screen and in Immersive Mode. 【SHIMMER AND SOUND SHAPING】 Built-in Shimmer adds a bright, floating upper tail to the sound. Control Amount, Pitch, Decay, Tone, and Modulation, then combine it with warmth, drift, reverb, and the rest of Nocturne’s sound controls. 【FOCUS, SLEEP, AND BACKGROUND PLAYBACK】 Choose a 25-minute focus session, 45-minute deep-work session, or 60-minute sleep timer. Timers continue on the Lock Screen and in the background, pause playback when complete, and gently fade the volume near the end of Sleep Mode. Control playback from the Lock Screen, Control Center, headphones, and Now Playing. Supported iPhone models also show playback and timer status in Dynamic Island, while the Home Screen widget keeps the current scene and BPM visible. 【AUv3 FOR MUSIC CREATORS】 Nocturne LoFi includes both an AUv3 instrument and the Nocturne LoFi FX audio effect for compatible hosts such as GarageBand and AUM. The instrument supports built-in scenes and shared user audio, MIDI performance, host sync, a variable-length step sequencer, swing, ties, per-step velocity, triplet rates, and host project state restoration. Nocturne LoFi FX processes host input with tape warmth, Drive, Tone, Tape Age, Wow, Flutter, Dust, stereo width, Shimmer, and a tempo-aware sequencer. It also supports automatable parameters and effect bypass. The standalone app can discover and load compatible third-party AUv3 effects—including their custom interfaces—so you can build an effects chain around Nocturne. 【EXPORT AND SHARE YOUR SOUND】 Render the current scene as a stereo M4A file, or add it directly to the shared AUv3 audio library for continued use in the instrument and your custom scenes. 【ONE PURCHASE, COMPLETE EXPERIENCE】 Nocturne LoFi is a one-time purchase with no subscription. One purchase unlocks every scene, generative music, custom scenes, timers, audio export, iCloud sync, and AUv3 features.
Screenshots
Verdict
The clearest difference is review sentiment: Seyfert at 100% against Nocturne LoFi's 33%. Seyfert also leads on rating (5.0 vs 3.7) and iOS requirement (15.0 vs 17.0). On price, 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
Seyfert costs $1.99 and Nocturne LoFi $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Seyfert holds the better App Store score, 5.0 against 3.7. Both are backed by a comparable volume of ratings — 3 and 3 respectively. Written reviews point the same way: 100% of Seyfert's written reviews are positive against 33% of Nocturne LoFi's.
Both ship on a similar rhythm, roughly every 2 days. The most recent releases landed on October 24, 2026 and October 29, 2026 respectively.
| Parameter | Seyfert | Nocturne LoFi |
|---|---|---|
| Price | $1.99 | $1.99 |
| Rating | 5.0 (3 ratings) — better | 3.7 (3 ratings) |
| Positive reviews | 100.0% of reviews — better | 33.3% of reviews |
| Number of ratings | 3 | 3 |
| Update frequency | Every 2 days | Every 2 days |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 3 MB | 114 MB |
| Age rating | 4+ | 4+ |
| Developer | Konstantin Torsten Schutz | 宁 徐 |
Customer experience
Seyfert
Nocturne LoFi
In-app purchases
Seyfert
No in-app purchases
Nocturne LoFi
No in-app purchases







