FluidVoice is the most-mentioned dictation alternative in the research behind this comparison — a genuinely on-device app with a custom-trained local cleanup model. It's macOS 15+ only; iOS and Windows are still waitlisted.
FluidVoice (8,997 ★) is local-first with cloud strictly opt-in, and it's the app most named by professionals in the source thread this research is built on. Its standout feature is Fluid-1, a custom-trained ~3.5 GB on-device model that handles formatting, capitalization, and per-app tone — no cloud, no API key. Nobody else in this research trained their own local cleanup model; everyone else wires up an existing LLM.
It relicensed from Apache-2.0 to GPL-3.0 in February 2026, described in the research as a commercially-defensive move. It currently ships macOS 15+ only — iOS and Windows support are on a waitlist, not shipped. OpenWispr already ships on Android, which FluidVoice doesn't have at all.
Fluid-1 is a real differentiator: a purpose-trained local model for cleanup, formatting, and per-app tone, running with no cloud call and no API key. Most competitors, OpenWispr included, use an existing model rather than training their own. FluidVoice's onboarding is also a pattern worth naming on its own merits — model choice is presented up front with published download sizes (Apple Speech at 0 MB up to Whisper Large at 2.9 GB), so a user picks a tradeoff deliberately instead of discovering it after the fact.
It's also the single most-mentioned alternative in the primary research thread behind this comparison — three separate mentions, more than any other product — which is a real signal of mindshare among the exact audience this research targeted.
FluidVoice has no Android app, shipped or waitlisted. If you need dictation on a phone, it isn't an option today. OpenWispr's Android app is live on Google Play.
FluidVoice also requires macOS 15+; OpenWispr supports both Intel and Apple Silicon Macs without that floor. And FluidVoice's GPL-3.0 license carries a copyleft obligation for distributed derivative works that OpenWispr's MIT license doesn't.
Open source and entirely on your device. Install from Google Play on Android, or download the macOS app from GitHub Releases — no account, no sign-up.