Comparison

NiceTuner vs GPF Easy Diapason

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

Head to head
About

NiceTuner

Features
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NiceTuner is a professional instrument tuner designed for musicians of all levels. Whether you're tuning a guitar before a gig, practicing violin, or exploring traditional instruments, NiceTuner delivers studio-quality precision in your pocket. KEY FEATURES ◆ Multi-Instrument Support • Guitar (Standard, Drop D, Open G, DADGAD) • Bass (Standard, Drop D, 5-string) • Ukulele (Standard C, Low G, D tuning) • Violin (Standard tuning) • Piano (Full 88-key range) • Erhu (D-A, C-G, G-D tunings) • Guzheng (D Major, G Major) ◆ Professional-Grade Precision • High-resolution 16K-point FFT analysis • ±0.1 cent accuracy for precise tuning • Real-time pitch detection at 30 FPS • Adaptive sensitivity for any environment ◆ 4 Musical Temperaments • Equal Temperament (modern standard) • Just Intonation (pure intervals) • Pythagorean (classical tuning) • Meantone (Renaissance music) ◆ Reference Tone Generator • 4 instrument sounds: Piano, Electric Piano, Guitar, Violin • Full chromatic range across all octaves • Quick-play scales: C Major and Chromatic • Adjustable A4 frequency (400-480 Hz) ◆ Smart Tuning Features • String-by-string guided tuning mode • Auto-advance to next string when in tune • Note stability detection prevents false readings • Color-coded visual feedback (green/yellow/red) ◆ Beautiful Design • Premium Aurora theme with glassmorphism effects • Dark and Light mode support • Smooth animated dial and level meters • Clean, intuitive interface ◆ Customizable Settings • Pointer damping (Low/Medium/High) for different instruments • Detection sensitivity adjustment • Reference pitch: 432 Hz, 440 Hz, 442 Hz, or custom • Volume control for reference tones ◆ 9 Languages Supported English, 日本語, Deutsch, Français, 简体中文, 繁體中文, 한국어, Español, Português Perfect for guitarists, violinists, pianists, and enthusiasts of traditional instruments like erhu and guzheng. NiceTuner combines professional accuracy with an elegant user experience. Download NiceTuner and tune with confidence.

About

GPF Easy Diapason

Read full description

GPF Easy Diapason is a simple tuning fork app for iPhone. It plays a continuous reference tone to help tune instruments and voices. The interface is clean and minimal, with quick controls for sound setup. Main features: - Tap the 3D tuning fork to start or stop sound - Reference frequency presets: A440, A432, A444, Baroque 415 - Base frequency control from 220 Hz to 880 Hz - Fine tuning in cents (-50 to +50) - Volume control - Waveform selection: Sine, Square, Triangle, Saw - Real time frequency display in Hz - Version and build info in footer Design: - Black and white style - Clear typography - Focused single screen workflow for fast use Technical notes: - Built with SwiftUI - Audio engine based on AVAudioEngine and AVAudioPlayerNode - Automatic build number increment on each build This app is made for musicians, students, choir practice, and anyone who needs a fast and reliable pitch reference on iPhone.

Screenshots

NiceTuner4 screens
GPF Easy Diapason3 screens

Verdict

The call

NiceTuner and GPF Easy Diapason are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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.

ScorecardNo meaningful differences
NiceTuner versus GPF Easy Diapason: the parameters behind the verdict, then further details
ParameterNiceTunerGPF Easy Diapason
PriceFreeFree
Update frequencyEvery 3 weeks—
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad — betteriPhone
Requires iOS17.6 — better18.6
Further details — not scored
Size27 MB0 MB
Age rating4+4+
DeveloperGuizhou Vanilla Information Technology Co., Ltd.Gian Paolo Fontani

In-app purchases

None

NiceTuner

No in-app purchases

None

GPF Easy Diapason

No in-app purchases

Questions

Is NiceTuner free?
NiceTuner is free to download, with no in-app purchases.
Is GPF Easy Diapason free?
GPF Easy Diapason is free to download, with no in-app purchases.
Do NiceTuner or GPF Easy Diapason have ads?
Neither NiceTuner nor GPF Easy Diapason shows ads.

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