If you're looking for another alternative to EchoFox, WhisperBot is a good choice. It uses OpenAI technology to transcribe WhatsApp voice messages into text, supporting more than 57 languages and delivering transcriptions with 95% accuracy within seconds. Like EchoFox, it protects your privacy with end-to-end encryption and deletes voice messages and transcriptions after 30 minutes. You can try it without a credit card by sending a specific code by text.
Another good option is Audionotes, an AI-powered note-taking app that converts voice and text notes into actionable text notes. It works well with WhatsApp and other sources, offering smart transcripts and a range of summary options. Audionotes is available as a progressive web app for Android and iOS devices and a Chrome extension for personal computers, supports multiple languages and has flexible subscription options.
If you want something more general purpose, check out ListenRobo. It can transcribe English audio into text at high speed and accuracy, supports 92 languages, and offers transcription, summarization and translation options. It's designed to protect your privacy with AES encryption and offers a range of transcription and summarization plans, including a free tier with 180 minutes of transcription.