A Smule Original — 2009
The App That Put Auto-Tune In Your Pocket
Before singing apps, before AI vocal magic, before the world went social with music — there was a $2.99 app that let anyone sound like a superstar. And the internet was never quite the same.
Launched September 4, 2009 · iPhone ExclusiveThe Idea
T-Pain had been making waves with the most talked-about sound in hip-hop: extreme Auto-Tune. Not the subtle pitch correction hidden under every pop vocal — the bold, robotic, unmistakably-him T-Pain Effect.
"I was trying to figure out why I didn't have an app yet," he told Billboard. So he went to Smule — the Silicon Valley team behind the viral Ocarina app — and told them to make something that would "blow all these other apps out the water."
The result was a piece of mobile software history: the same Antares Auto-Tune technology T-Pain used in the studio, running in real time on an iPhone, for $2.99.
The Team
Three forces came together to make it happen:
T-Pain
The Voice & Vision
Smule
Engineering & Design
Antares
Auto-Tune Technology
"The same thing I use in the studio — that's gonna be on the phone."
— T-Pain, Rolling Stone
From Smule's founder at launch: "We founded Smule to deeply explore how something like the iPhone can fundamentally change the way people express and interact."
"What Smule has done here is technically incredible — and it's a friggin' killer product idea, to boot."
— TechCrunch, September 2009
Real-Time Processing
Pitch correction happened live as you sang — no buffering, no delay. The iPhone became a studio vocal chain in your hand.
Authentic Tech
Built on Antares Auto-Tune — not a simulation. The same professional technology behind countless chart-topping records.
Social by Design
Share recordings to Facebook, MySpace, and Twitter instantly. Every user a performer. Every phone a stage.
Sing Anything
Included original T-Pain beats plus full iTunes library integration — the T-Pain Effect on any song you owned.
Freestyle Mode
Pure Auto-Tune expression, no backing track required. Acapella freestyles with full T-Pain Effect.
Auto-Tune Video
Version 1.5 added front-camera video with Auto-Tune, pioneering the selfie-performance format years before it was a thing.
Official gauge readings from the Smule instrument panel
300K
Downloads in the first 3 weeks alone
66
Minutes avg. per user session — "absolutely ludicrous for any app" — TechCrunch
34.7M
Auto-Tuned recordings created by users
Top 25
Paid Apps of All Time on the App Store
"Do you have any idea how many hours I could waste getting my mom to sing hip-hop?"
— Mashable
"Hip hop fans are going to love this. Drunken frat boys are going to love this. Hell, I can't stand hearing Auto-tune in songs anymore, and I can't put this thing down."
— TechCrunch
"As a musician, putting the bona fide Auto-Tune processor on a handheld device seems amazing enough. But as a software developer, I'm also impressed with Smule's approach to interface design."
— Macworld
"Smule is once again breaking new grounds with this application that merges music technology, the iPhone's capabilities, and mainstream hip-hop music."
— VatorTV
As Featured On & Covered By
I Am T-Pain was never just an app. It was a proof of concept — a demonstration that the gap between the studio and the singer's bedroom could be closed by a phone. That idea didn't die when the app went quiet. It became the foundation of everything Smule built next.
2009 · Antares Auto-Tune
2012–2015 · Social Platform
2024 · AI Vocal Magic
The same Smule engineering team that cracked real-time Auto-Tune on a 2009 iPhone has spent 15 years deepening that work. Today, Smule's AI-powered vocal processing — built in Smule Labs — applies studio-quality transformation to every performance on the platform. The concept T-Pain championed went global.
50M+
Users Worldwide
2B+
Performances Recorded
150+
Countries
The Legacy Continues
I Am T-Pain showed what was possible. Smule is where that possibility lives on — with millions of singers, hundreds of thousands of songs, and AI vocal tech that makes everyone sound extraordinary.
Free to download · Smule Inc. · San Francisco, CA