SoundLens: Audio Effects
Identify the effects you hear
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Hear an effect in a song and finally know its name. 93 effects you can A/B on real instruments, a chain builder to stack them, and AI that answers "what is that?"
You're covering a song. You can hear exactly what the guitar is doing - that shimmer, that slap, that swell. You just have no idea what it's called, so you can't search for it, and you can't recreate it.
SoundLens is a field guide to that problem.
HEAR THE DIFFERENCE, DON'T READ ABOUT IT
93 audio effects, each one playable on real instrument recordings - electric and acoustic guitar, bass, drums, piano, organ, strings, synth pad, and vocals. Tap dry, tap wet, hear the difference immediately. No theory lecture, no waveform diagrams. Just the sound.
KNOW WHAT YOU'RE ACTUALLY HEARING
Every effect explains what it does and when it's used, in one plain paragraph. Each entry also tells you what it's commonly confused with - chorus vs. flanger, reverb vs. delay, compression vs. limiting - and exactly how to tell them apart by ear. That confusion is the whole reason you couldn't name the sound in the first place.
BUILD THE CHAIN
The Playground lets you stack effects into a signal chain, drag to reorder them, and hear the result in real time. Order matters - put the reverb before the distortion and hear why. Adjust parameters live, slide between fully dry and fully processed to A/B the whole chain, and save the chains that work.
ASK WHEN YOU'RE STUCK
Describe what you hear in plain language - "that warbly guitar in 80s ballads," "surfy wet twang" - or name the song. Ask identifies the likely effects, explains why it sounds that way,
and hands the whole chain straight to the Playground so you can hear its answer, not just read it.
BROWSE BY INSTRUMENT
Ask what effects typically sit on vocals, or on bass, and get the breakdown: what's almost always there, what's common, and what's situational.
WHAT'S FREE, WHAT'S NOT
Ten essential effects - reverb, delay, chorus, flanger, tremolo, overdrive, compressor, parametric EQ, low-pass filter, and pitch shifter - are free to browse and use in the Playground, with no time limit and no account. Unlock the full 93-effect catalog with a single one-time purchase. Ask is a separate optional subscription with a free trial.
HONEST ABOUT ITS OWN LIMITS
A handful of effects are approximations of the real hardware, and SoundLens says so on the entry itself rather than pretending otherwise. This is a learning tool, not a mastering suite.
WHO IT'S FOR
Musicians recording covers who can hear an effect but can't name it. Players moving from "I want it to sound like that" to actually knowing what to reach for. Anyone tired of describing a sound in a forum post and waiting two days for an answer.
No account required. No tracking. Your recordings stay on your device.
Terms and Conditions: https://gitlab.com/seisembay/soundlens/-/blob/main/TERMS.md
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The developer, Islam Seisembay, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
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Information
- Seller
- Islam Seisembay
- Size
- 22.5 MB
- Category
- Music
- Compatibility
Requires iOS 26.0 or later.
- iPhone
Requires iOS 26.0 or later. - Mac
Requires macOS 26.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 26.0 or later.
- iPhone
- Languages
English and 2 more
- English, Kazakh, Russian
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- AI Chat Subscription $2.99
- Unlock Full Catalog $19.99
- Copyright
- © Islam Seisembay