Comparison

Neoharp vs 3D Synth

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

Head to head
About

Neoharp

Features
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Official app for the Neoharp musical instrument. Fine-tune your sound across all three channels — Chord Buttons, Bass, and Tone Keys — with flexible, per-channel controls. Connect your Neoharp to your iPhone or iPad (via USB-C), open the app, and let your ideas flow. What you can do in the app: - Balance the volume of each channel with the built-in mixer. - Choose Chord Buttons behavior: play the chord tones on press, or switch harmony silently (no chord playback). - Disable/enable the Bass voice. - Set chord voicing and range: define the playable range, toggle inversions on or off, and choose the lowest reference note (note offset). - Toggle sustain on/off; connect an external pedal to control note sustain with your foot. And that’s not all — more features are coming in future updates! Requirements: - A Neoharp instrument is required for full functionality. Questions or feedback: neoharp@neoharp.com

About

3D Synth

Features
Read full description

3DSynth! A chromatic touch synthesizer and on-device recorder. Chromatic by design - 3DSynth lets you play all notes and frequencies continuously—not locked to MIDI steps—so you control pitch directly with your finger like a real instrument! Real-time, responsive play - Low latency and immediate feedback keep your phrasing natural and expressive while you glide and shape the note in motion. Shape your sound - Choose different instruments (oscillator, FM, plucked), sculpt with ADSR and add effects like reverb, modulation, delay, distortion, and EQ! Record on device - Capture your takes directly to the app’s local recordings folder for sharing and backup. **Important** Deleting the app removes its local data, including recordings and settings. Export anything you want to keep before uninstalling or resetting the device. Enjoy and thanks for downloading!

Screenshots

Neoharp4 screens
3D Synth3 screens

Verdict

The call

The clearest difference is iOS requirement: Neoharp at 13.0 against 3D Synth's 18.5. On price, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Scorecard1 real difference · 7 level
Neoharp versus 3D Synth: the parameters behind the verdict, then further details
ParameterNeoharp3D Synth
PriceFreeFree
Rating—4.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 6 months—
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better18.5
Further details — not scored
Size79 MB9 MB
Age rating4+4+
DeveloperNeoharp L.L.C-FZDavid Noy

In-app purchases

None

Neoharp

No in-app purchases

None

3D Synth

No in-app purchases

Questions

Is Neoharp free?
Neoharp is free to download, with no in-app purchases.
Is 3D Synth free?
3D Synth is free to download, with no in-app purchases.
Do Neoharp or 3D Synth have ads?
Neither Neoharp nor 3D Synth shows ads.

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