Comparison

Gradient Synth vs Nudisu

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

Head to head
About

Gradient Synth

Transform colors into unique sounds with this intuitive music creation app. Designed for beginners and children, it offers a user-friendly interface and powerful features to explore and customize a wide range of audio experiences.

Highlights
  • Preset Generator
  • Color-based sound customization
  • User-friendly interface
  • MIDI keyboard integration
  • Dynamic audio effects
  • Polyphony
Features
Read full description

** TRANSFORM COLORS INTO SOUNDS ** Designed with beginners in mind, our app makes exploring music fun and intuitive for everyone. Whether you’re just starting out or introducing your child to music, Gradient Synth offers a user-friendly interface and powerful features to help you create and perform unique sounds effortlessly. Now free to download, Gradient Synth invites everyone to explore sound and create at their own pace. ** CREATE YOUR IDEAL SOUND WITH THE NEW PRESET GENERATOR ** Type what you want to hear, and Gradient Synth’s Preset Generator transforms your description into customizable instrument settings. This innovative tool simplifies sound design, allowing you to focus on your creativity without a steep learning curve. Experience the magic of turning your ideas into music with just a few taps. ** EXPLORE YOUR CREATIVITY ** Explore a wide range of sounds, from calm and soothing to bold and experimental. Customize your tones by changing colors, enhancing both your auditory and visual creative processes. Let your imagination flow seamlessly with Gradient Synth, your gateway to endless musical possibilities. ** HERE IS WHAT OUR CUSTOMERS HAVE TO SAY ** "I believe in Gradient Synth!" - TONY G. "I feel like Mozart." - HANNAH R. "I like to change the colors." - SHEPHERD O., Age 5 ** FEATURES ** Preset Generator & Control • Type your desired sound and let the app create unique instrument settings. • Customize and refine presets to match your style. • Over 50 starter presets to inspire your first creations. • Color picker for personalized sound experiences. • Deep customization editor for perfecting your sounds. User-Friendly Interface • Tap or press the gradient to start making music instantly. • Interactive text display provides real-time feedback and learning. • Simple mode ideal for kids and beginners. Advanced Control • Play up to 4 notes simultaneously with polyphony. • Seamlessly integrate with MIDI keyboards and your favorite DAWs. • Connect wirelessly to Bluetooth MIDI devices. Dynamic Effects • Choose from reverb, delay, saturation, bitcrush, chorus, and low pass filter. • Easily adjust effect settings with XY pad and fader controls. • Add movement and depth with the Tone Animator. ** WHY GRADIENT SYNTH? ** • Innovative Preset Generator: Create and customize sounds effortlessly by describing what you want to hear. • Beginner-Friendly: Perfect for those new to music creation, fostering creativity and confidence. • Vibrant Visuals: Enhance your music experience with color-based sound customization. • Comprehensive Features: From basic controls to advanced MIDI compatibility and effects, everything you need to start your musical journey. ** JOIN OUR CREATIVE COMMUNITY ** Share your creations with friends and explore endless creative possibilities together. Download Gradient Synth now and begin your musical journey today! If you love our app, please rate us on the App Store—your feedback helps us grow and improve! ** ADDITIONAL FEATURES ** • Customizable display for a personalized setup. • Favorite preset mode for quick access to your top sounds. • Engaging visualizer for an immersive experience. • Overtone fader and ADSR envelope control for precise sound shaping. • Note Editor to adjust the scale of the gradient. • Drag to re-pitch with an easy toggle option. • Note guide overlay for effortless navigation. • Save and name your custom presets. • Left-hand edit mode for enhanced usability. • MIDI CC Control for expanded functionality. • Synesthesia exploration blending visual and auditory creativity. ** GET STARTED TODAY ** Transform your sound design experience with Gradient Synth. Download now and use our Preset Generator to create and perform music like never before! Previous purchases are honored with Lifetime Ownership. Support: http://manual.gradientsynth.com Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Nudisu

Features
Read full description

Nudisu is an intuitive piano learning app focused on helping you learn your favorite songs with ease. Follow falling notes displayed in real-time as you play, allowing you to visually connect with the music and progress faster. Customize your learning experience by adjusting the playback speed, so you can practice at a comfortable pace that suits your skill level. Whether you're a beginner or an advanced player, Nudisu's interactive interface and dynamic features guide you through each song step-by-step. The app supports flexible practice with speed controls and detailed note visualization, making it perfect for mastering songs confidently. Key Features: Real-time falling notes display synchronized with the melody or exercise Adjustable playback speed for personalized practice Song-focused learning approach, making practice fun and engaging Suitable for all skill levels, from beginners to seasoned pianists Start your musical journey with Nudisu and unlock the joy of playing piano songs effortlessly!

Screenshots

Gradient Synth4 screens
Nudisu4 screens

Verdict

The call

The clearest difference is in-app purchases: Nudisu at none against Gradient Synth's 5. Gradient Synth's advantage is update cadence (monthly vs every 2 months). On price, ads, device support and iOS requirement 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. Gradient Synth sells 5 in-app purchases, starting at $9.99 per year. Nudisu asks for nothing beyond the download.

UpkeepUpdate frequency

Gradient Synth ships an update monthly, Nudisu every 2 months. The most recent releases landed on October 24, 2026 and October 30, 2026 respectively.

Scorecard2 real differences · 8 level
Gradient Synth versus Nudisu: the parameters behind the verdict, then further details
ParameterGradient SynthNudisu
PriceFreeFree
Rating4.4 (63 ratings) — better—
Positive reviews61.5% of reviews—
Number of ratings63 — better—
Update frequencyMonthly — betterEvery 2 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.017.0
Further details — not scored
Size13 MB38 MB
Age rating4+4+
DeveloperApps Are Fun LLCGuru Prasad M

In-app purchases

5 purchases

Gradient Synth

Subscriptions2
  • Gradient Synth Supporter (Yearly)1 Year trial$9.991 Year
  • Unlimited Presets$19.991 Year
One-time3
  • 10 Presets$0.99
  • 75 Presets$4.99
  • Lifetime Unlock$12.99
None

Nudisu

No in-app purchases

Questions

Is Gradient Synth free?
Gradient Synth is free to download, with in-app purchases available.
Is Nudisu free?
Nudisu is free to download, with no in-app purchases.
Do Gradient Synth or Nudisu have ads?
Neither Gradient Synth nor Nudisu shows ads.
Which is updated more often, Gradient Synth or Nudisu?
Gradient Synth ships an update monthly, and Nudisu every 2 months. Most recently, Gradient Synth was updated on October 24, 2026 and Nudisu on October 30, 2026.

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