Compare the basics
Details below were checked on 26 September 2026 against Klack's official site and its US App Store listing.
| KeyEcho | Klack | |
|---|---|---|
| Price | Free app; free and paid sound packs | $4.99 on the US Mac App Store |
| Platforms | macOS, Windows, Linux | macOS 15.0 or later |
| Source code | Open source (AGPL-3.0) | Closed source |
| Sounds | Browseable catalog of free and paid packs | Built-in set of switch-branded sounds |
| Sound shaping | Pick a pack per keypress sound | Spatial audio, up/down keystrokes, randomized pitch, tone pad |
When KeyEcho is worth trying
Try KeyEcho if you are on Windows or Linux — Klack's current listing supports macOS only. It is also worth trying on a Mac if you would rather hear exact sounds before paying: every pack on this site plays in the browser on the same keys, and the keyboard sound test runs several packs through the same short sequence.
KeyEcho's app is free and the catalog mixes free and paid packs — a single pack is $3.99 and the full catalog unlock is $9.99, both one-time. Credits on each pack page name the recording source and license; several packs reuse open-source keyboard-sound recordings.
If you are comparing other options too, the Mechvibes comparison covers the free community-pack workflow.
When Klack may fit better
If you are on a recent Mac and want a polished menubar app with one curated sound set, Klack is built for exactly that. Its listing and changelog describe spatial audio, randomized pitching, up/down keystroke sounds, per-switch customization, sleep automation and usage statistics — deeper playback shaping than picking a fixed pack.
Klack also publishes sounds branded after real switch families — CherryMX, Everglide, Gateron, Keychron, NovelKeys. If matching a specific switch by name matters to you, that mapping is a real convenience.
A spelling note
Searches for "klack" also return Klakk (tryklakk.com) — a different, unrelated Mac app with a similar pitch. This page compares Klack by Henrik Ruscon (tryklack.com). Check which one you mean before buying either.
Check the current sources
- Klack official site and its US App Store listing for price and macOS requirements
- Klack changelog for what is in the current version
- KeyEcho desktop source, current sound packs and the download page
No migration is needed to compare them: open the sound test, audition a few packs, and decide with your ears before installing either app.