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. Android from Google Play, macOS from GitHub — no account, no sign-up, just a download.