The #1 Professional Songwriting App

Never Sound
Off-Beat Again.

A pro songwriting studio that highlights your rhymes, counts your syllables, and tracks your flow in real time.

Start Writing Free No Credit Card Needed
RhymeFlux app showing real-time rhyme highlighting with color-coded syllable matching across multiple bars

Stop Writing in Apps That Don't Get Rap.

Writing in Notes
  • You rhyme everything in your head and hope you don't forget the scheme
  • No way to check if your syllables actually fit the beat
  • Writer's block hits and you just stare at a blank screen
  • Lose bars when your phone dies or your app crashes
Writing in RhymeFlux
  • Multi-syllable rhymes get highlighted for you instantly as you type
  • Live syllable counter shows you exactly how your flow fits a 4/4 beat
  • AI Suggestions provide instant multi-syllabic rhymes and word swaps to elevate vocabulary
  • Every keystroke saves instantly, even with zero Wi-Fi
What You Get

Gear to Make
Your Bars Hit Harder.

Find Rhymes Nobody Else Hears

Rhyme Finder

Basic dictionaries only catch simple rhymes like "cat" and "hat." We scan the actual sound of your words to catch deep multi-syllable schemes in real time as you type. Patterns like "incredible" matching "unforgettable" pop up instantly.

Stay Perfectly on Beat

Live Syllable Counter

See your syllable count update live as you type. It even counts "FBI" right - 3 syllables.

Kill Writer's Block

AI Suggestions

Tap any word for instant rhymes, vibe-tuned word swaps, and multi-syllable phrase ideas.

AI That Matches Your Vibe

Set your style: Trap, Drill, Lyrical, or Melodic. The AI writes bars that actually sound like you.

Rhymes How You Spit

Our rhyme engine knows 576 slang words like "jawn," "Glizzy," "K-Dot," and "Drizzy." It rhymes the way rappers actually rap.

Booth Teleprompter

Turn your phone into a recording booth teleprompter. Big text, auto-scroll, screen never dims.

Write Anywhere, No Wi-Fi Needed

Every keystroke saves to your device. Pro users get 7 days of full offline access.

Your Bars Follow You Everywhere

Open your project on any device and pick up right where you left off with secure cloud sync.

Record Takes Right Inside

Lay down quick audio takes on every line. Pro users get unlimited recordings to compare and perfect delivery.

See Your Cadence

Know Your Flow Before You Record.

Stop guessing your rhythm. The Beat Grid shows you exactly how your syllables land on a 4/4 beat. You'll see if your flow is too packed or too empty before you ever step in the booth.

Syllable Counter Beat Grid
ACTIVE_SCAN: 0x4F2A
COORD_X: 42.19
COORD_Y: 09.82
DEPTH: 2048_SAMPLES
BUFF: 1024ms
SIGNAL_LOCK: 100%
SYS_READY 100%
Realtime Scanning Active
How It Works

Three Steps. That's It.

1

Open Your Studio

Sign up free and jump straight into your writing workspace. No downloads, no setup. It runs right in your browser.

2

Write Your Bars

Start typing and watch the rhyme highlighter color-code your matches. It catches multi-syllable rhymes across your lines in real time so you can build complex schemes fast.

3

Perfect Your Flow

Use the AI co-writer and flow tracker to polish every line. See your syllable count, check your rhythm, and make every bar count before you hit the booth.

Stop Guessing. Start Writing.

The free plan lets you test the pro tools. Go Pro to unlock everything and take your bars to the next level.

Monthly Plan
$15/mo

Lock in your flow tonight.

  • Unlimited Projects & Songs
  • 800 AI Uses Per Month
  • Cloud Sync & Automatic Backups
  • Advanced Rhyme Highlighting (English Optimized)
  • Airplane Mode Studio (7-Day Offline)
  • Emergency Bar Restore (Recycle Bin)
Get Monthly
Save 45%
Annual Plan
$99/year

Most artists pick this one.

  • Everything in Monthly
  • Infinite Recording Stacks
  • Unlimited Beat Player Time
  • Priority Support (Direct Line)
Get Annual

14-Day Money-Back Guarantee

Lifetime Plan
$249once

Ownership for life. No monthly bills.

  • Everything In Annual
  • VIP Founder (No Subscription)
Get Lifetime

All prices are inclusive of VAT where applicable. Transactions processed by Paddle.

Writing Studio

Rhyme Finder

Search any word and get up to 300 rhymes, grouped by syllable count. Tap to drop one into your line.

Sound-Based Matching

Our rhyme engine matches words by sound, not spelling. Every scheme hits, no matter how it's written.

Internal & Slant Rhymes

Catches the loose rhymes rappers actually use — not just textbook perfect ones.

Glitch Versions

Save a remixed Glitch Version next to your Organic on any line. Swipe to compare and pick the winner.

Ghost Rhymes

Empty lines fade in rotating rhyme words ranked against your last bar and active vibe. Free, no AI tokens.

Studio Gear

Airplane Mode Studio

Keep writing on planes, in the booth, or at the venue. Zero Wi-Fi needed.

Line-by-Line Recording

Record your takes directly on each bar. Keep unlimited audio stacks per line.

Full Song View

See all your verses and hooks in one long list — perfect for a top-to-bottom performance run.

Drag-and-Drop Structure

Drag whole blocks of bars and verses to fine-tune your song structure in one click.

Teleport Lines

Move any line between verses, hooks, or other sections with one tap.

Built-In Beat Player

Loop YouTube beats or drop in your own MP3 or WAV files. Mobile-friendly — no YouTube Premium needed.

AI Co-Writer

AI Suggestions Popup

Tap any word — a 3-column popup opens with rhymes, vibe-tuned word swaps, and multi-syllable phrases.

Rewrite Mode

Hit Sparkle on any line to remix it into a Glitch Version. Swipe between Organic and Glitch to pick the winner.

God Prompt

Stuck on a whole verse? Generate a 4–5 bar section in one shot, tuned to your active vibe.

Generate Next Bar

On empty lines, pick a mode: Complete It (matches your scheme), Switch Up (new scheme), or Rhythm Match (mirrors syllable count).

Concept Roller

Out of ideas? Roll a random rap topic and keyword set. Free — no AI tokens used.

Professional Workflow

Fits Right Into Your Studio Setup.

RhymeFlux isn't just a notebook. It's a full writing studio that sits between your brain and the microphone. Write your schemes, record your scratch takes, and take it straight to the booth.

Step 1

Write and lock in your scheme.

Step 2

Record guide takes for flow.

Ableton FL Studio Logic Pro Pro Tools

Universal Export & Copy-Paste Workflow

FAQ

Got Questions?

Is RhymeFlux free to use?
Yes. The free plan gives you 3 active songs, 3 sections per song, and 15 AI uses every 30 days so you can test the full studio. The 'Spotlight Rule' means rhyme highlighting and Pro tools fade out after bar 12 of your first tab — but you can keep writing plain text forever.
What happens to my lyrics if I lose internet?
Nothing bad. Every keystroke saves straight to your device. Pro users can work offline for up to 7 days. Your bars are always safe.
How is this different from writing in Notes or Google Docs?
Those tools don't understand rap. RhymeFlux scans your vowel sounds and catches multi-syllable rhyme schemes in real time. It also counts your syllables live so you can see your flow before you record.
What does the AI actually do?
Tap any word and a 3-column popup opens with rhymes, vibe-tuned word swaps, and multi-syllable phrase replacements. We also have 'Ghost Rhymes' that fade in on empty lines when you're stuck.
Can I cancel anytime?
Yes. Monthly and annual plans can be cancelled whenever you want. No hidden fees, no tricks. Lifetime is a one time payment so there is nothing to cancel.
Does RhymeFlux work in other languages?
The rhyme highlighting is built for English - US, UK, Australian, and Canadian accents. It won't catch rhymes accurately in Spanish, French, or other languages. The AI Co-Writer can brainstorm in multiple languages, but for full rhyme scanning and syllable counting, English gives you the best results.

Ready to Level Up
Your Writing?

Open your free studio right now. No credit card, no setup, no catch.

RhymeFlux Professional Lyric Studio App Interface
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