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EffectDeck
Effects for any player on your iPhone
Android has RootlessJamesDSP — system-wide audio effects without root. iOS had nothing. Not a worse version. Nothing. AUv3 only runs inside a DAW, EQ apps only touch their own player. iOS 27 cracked it open: an app can now present itself as an audio output device. Pick EffectDeck in Control Center and everything you play goes through your chain — Spotify, YouTube, podcasts, anything. 100+ effects from EffeTune's DSP core. IR reverb, analyzers, a 16x16 matrix. Free, no account, no ads.
Top comment
Android people have had RootlessJamesDSP for years. System-wide EQ and convolution, no root needed. On iOS there was nothing — not a worse version, nothing. AUv3 only runs inside a DAW. EQ apps only touch their own player. Every thread about it ended with "you can't do that on iOS." You can now. iOS 27 added a way for an app to present itself as an audio output device, and EffectDeck uses it. Pick it in Control Center and the system hands it your audio. All of it. What people do with it: - Fix the headphones you already own. Pull down the peak that makes cymbals hurt. Lift the bass your cheap earbuds never had. - Put a room around the music. Load an impulse response and your playlist is in a concert hall, a stairwell, a cathedral. - Make podcasts survive a noisy train — compress the quiet parts up, tame the loud host. - Run anything through a 1960s television, a tape deck, a broken radio. The fastest way to ruin a song on purpose. - Watch what is actually happening. Spectrum analyzer, spectrogram, a piano roll that follows the melody. - Build a chain, save it, send the link. They open it in EffeTune on the desktop, or here. 100+ effects, built on EffeTune's DSP core (MIT). Free, no account, no ads. If you find something fun, show a friend who cares about how their music sounds — the kind who already runs everything through a DSP. That is how this spreads.
About EffectDeck on Product Hunt
“Effects for any player on your iPhone”
EffectDeck was submitted on Product Hunt and earned 2 upvotes and 1 comments, placing #86 on the daily leaderboard. Android has RootlessJamesDSP — system-wide audio effects without root. iOS had nothing. Not a worse version. Nothing. AUv3 only runs inside a DAW, EQ apps only touch their own player. iOS 27 cracked it open: an app can now present itself as an audio output device. Pick EffectDeck in Control Center and everything you play goes through your chain — Spotify, YouTube, podcasts, anything. 100+ effects from EffeTune's DSP core. IR reverb, analyzers, a 16x16 matrix. Free, no account, no ads.
On the analytics side, EffectDeck competes within iOS, Music, Spotify and GitHub — topics that collectively have 230.1k followers on Product Hunt. The dashboard above tracks how EffectDeck performed against the three products that launched closest to it on the same day.
Who hunted EffectDeck?
EffectDeck was hunted by Masahiro. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of EffectDeck including community comment highlights and product details, visit the product overview.