How to choose an audio extension for WhatsApp Web

Does the audio arrive as a native voice message?

Every extension in the table below states it sends audio as a native voice message — the bubble with a waveform and a play button, not an attached file. That's the minimum requirement: without it, the extension doesn't solve the problem people search for in the first place.

Where are the audio files stored?

The listed extensions all keep audios locally, in your own browser or computer — none of them states it uploads the audio content to a server of its own. ZapAudio specifically uses the browser's IndexedDB; the other three listings only say "local processing," without detailing the mechanism.

How does per-device licensing work?

Only ZapAudio's own listing spells out a per-device licensing rule: 1 license = 1 WhatsApp connected at the same time, with the same e-mail signing in on any computer. The other three listings don't mention a device limit or a subscription model — there's no way to tell from the public listing whether they charge per install, per account, or not at all.

Is there a free trial with no card?

ZapAudio offers 20 free sends, with no time limit and no card required, before any charge. The other three extensions in the table don't state a price or a paid plan on their own listings — based on what's published, they appear to be free, but none of them confirms that explicitly or says whether they'll charge in the future.

Comparison table