Comparison

Harmonic Explorer vs NinjamZap

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

Head to head
About

Harmonic Explorer

Features
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Harmonic Explorer is a unique musical instrument built for sonic discovery. Tap into a grid of harmonic tones, pan across four octaves, and sculpt sound with layered controls that invite both casual play and deep experimentation. From soft, violin-like purity to rich metallic textures and spatial choruses, Harmonic Explorer offers a wide expressive range. Adjust harmonic gains, spread tones into lush chords, or reduce everything down to a single precise frequency. Key Features: - Intuitive multi-touch interface with four full octaves - Portrait and Landscape mode fully supported - Harmonic tone generation with per-voice amplitude control - Dynamic chord spread control โ€” from single tones to shimmering triads - Built-in reverb with selectable acoustic spaces (from Room to Cathedral) - Randomize and Reset for playful experimentation or clean slates - Route Picker to send audio directly to Bluetooth or external devices - Designed for real-time performance and sound exploration - Fully offline โ€” no ads, no tracking, no accounts, no interruptions Whether you're a composer looking for new inspiration, a student learning sound design, or just curious about the nature of harmonic structure, Harmonic Explorer offers a fresh way to hear and shape music. Sculpt tones. Discover timbres. Explore harmonics.

About

NinjamZap

Features
Read full description

NinjamZap brings real-time online jamming to your iPhone and iPad โ€” now with live video. Connect to any NINJAM server, pick a username, and play music with people around the world. Free, no ads, no studio required. NINJAM is a proven protocol for internet music collaboration, used by musicians for over 15 years. Instead of fighting network latency, NINJAM embraces it: everyone plays along to a shared metronome, and you hear what others played in the previous interval. The result is a surprisingly natural and creative way to make music together. NinjamZap is the first native iOS NINJAM client, and the first NINJAM client of any kind to support live video. KEY FEATURES LIVE VIDEO (NinjamZap rooms only) - See every musician you're jamming with, frame-locked to the jam interval - HD support up to 1280x720 per tile - Auto-adapt quality follows room BPM/BPI - HDMI output and one-tap full-screen JAMMING & AUDIO - Connect to any public or private NINJAM room and start playing - Multi-channel local โ€” up to 4 separate input channels per session (guitar + bass + voice + drums) instead of a single stereo pair - Vorbis quality presets: Quick (64 kbps), Standard (128), High (192), Studio (256) - Session recording at 256 kbps AAC, optional metronome-free for DAW-ready files - USB audio interface support โ€” iRig, MOTU, Focusrite, and other Lightning/USB-C interfaces - Per-channel mixing โ€” volume, mute, solo for every musician - Audio FX per local channel โ€” Reverb (Room / Hall / Plate) + Compressor (Light / Medium / Heavy) - Configurable latency profiles โ€” Ultra Low (3 ms), Low (5 ms), Safe (10 ms) - Audio routing โ€” Apple's native picker for AirPods, HDMI, USB, Bluetooth - Echo cancellation โ€” play through your speaker without headphones - Transmit control โ€” decide exactly when your audio goes live MIDI & SYNC (iOS) - MIDI Clock Out โ€” sync external drum machines, synths, and DAWs to the room tempo - Tap tempo โ€” tap to detect BPM before proposing a change - BPM/BPI voting โ€” propose tempo and interval changes during the session SESSIONS & SOCIAL - Free, no ads, no in-app purchases โ€” fully featured forever - Guest mode โ€” no account needed, pick a username and you're in - Profile avatars โ€” image or animated GIF - Sign in with email + password, or SSO (Google, Apple) - Browse public rooms โ€” see active NINJAM servers and who's playing - Built-in metronome โ€” visual beat indicator + click track - Live chat โ€” text chat, country flags, tappable links - Now Playing artwork on the lock screen during a session - Live stream shortcut โ€” open the room's web stream from anywhere HOW IT WORKS 1. Open NinjamZap and choose a username (or sign in for a full profile) 2. Browse public rooms or enter a server address 3. Connect, enable your metronome, and listen to what others are playing 4. When you're ready, enable Transmit on your channel to join the jam 5. On NinjamZap rooms, tap the video icon to send your camera and see others 6. Adjust the mix โ€” volume, mute, and solo individual channels to taste WHO IS THIS FOR - Musicians who want to jam online without being in the same room - Guitarists, bassists, drummers, keyboardists, vocalists, and producers - Hardware musicians whose drum machines and synths need to follow the room tempo - Existing NINJAM users looking for a polished mobile client - Anyone curious about collaborative music-making over the internet ABOUT NINJAM NINJAM (Network Jam) was created by Cockos Inc. NinjamZap is an independent client โ€” not affiliated with Cockos or the official NINJAM project. Live video is a NinjamZap extension, only available on NinjamZap-hosted rooms (video.ninjamzap.com). Other NINJAM clients ignore video channels and audio still works for everyone. The core audio engine is open source under GPL v3 at github.com/jacinside/ninjamzap-core. Works with any standard NINJAM server. Free, no ads. Requires iOS 13 or later. iPhone and iPad.

Screenshots

Harmonic Explorer4 screens
NinjamZap4 screens

Verdict

The call

The clearest difference is price: NinjamZap at Free against Harmonic Explorer's $0.99. NinjamZap also leads on update cadence (every 10 days vs every 7 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

NinjamZap is free to download; Harmonic Explorer costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Harmonic Explorer ships an update every 7 months, NinjamZap every 10 days. The most recent releases landed on September 21, 2026 and October 3, 2026 respectively.

Scorecard2 real differences ยท 4 level
Harmonic Explorer versus NinjamZap: the parameters behind the verdict, then further details
ParameterHarmonic ExplorerNinjamZap
Price$0.99Free โ€” better
Update frequencyEvery 7 monthsEvery 10 days โ€” better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.615.6
Further details โ€” not scored
Size2 MB32 MB
Age rating4+9+
DeveloperPhilippe ZayJavier Cordero

In-app purchases

None

Harmonic Explorer

No in-app purchases

None

NinjamZap

No in-app purchases

Questions

Is Harmonic Explorer free?
Harmonic Explorer costs $0.99, with no in-app purchases.
Is NinjamZap free?
NinjamZap is free to download, with no in-app purchases.
Do Harmonic Explorer or NinjamZap have ads?
Neither Harmonic Explorer nor NinjamZap shows ads.
Which is updated more often, Harmonic Explorer or NinjamZap?
Harmonic Explorer ships an update every 7 months, and NinjamZap every 10 days. Most recently, Harmonic Explorer was updated on September 21, 2026 and NinjamZap on October 3, 2026.

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