letter maps vs Speakflow
Speakflow is the closest mainstream comparison: a browser-based teleprompter with voice-following (“Flow” mode), in-browser recording, AI writing tools, and team workspaces. It is a capable, collaborative product — but it is cloud-first, where letter maps is local-first.
Compared June 2026. Vendor facts from official sources; “not stated” means the vendor doesn’t publicly document it.
| letter maps | Speakflow | |
|---|---|---|
| Price | Free, forever | Free tier (limited Flow, 7-day history); Plus from ~$15/mo billed annually |
| Account / sign-in | Not required | Account required |
| Runs in a browser (no install) | Yes | Yes — web app, no install |
| Voice-following | Yes | Yes — “Flow” mode follows your voice |
| Offline voice-following | Yes — on-device (Chrome 139+) | No — online tool; offline use not advertised |
| Audio stays on your device | Yes — optional on-device mode | Not stated — likely server-side given the cloud architecture |
| Voice-following languages | Browser locale + language picker | English default; several languages incl. CJK, auto-detected; no switching mid-session |
| Where your script lives | Your browser only (local-first) | Vendor cloud (AWS); scripts and recordings stored server-side |
| Built-in video recording | No — prompter only | Yes — records up to 1080p in the browser |
| Platforms | Any browser (voice best in Chrome) | Any browser |
What Speakflow does well
Choose Speakflow if you want browser-based voice-following plus recording, an overlay for Zoom/Meet calls, AI script tools, device sync, and team collaboration — and you're comfortable creating an account and keeping scripts in the vendor's cloud.
Where letter maps differs
Both run in the browser and follow your voice. The difference is where your data and audio go. Speakflow requires an account and stores scripts and recordings in its cloud; its free tier caps Flow and script history. letter maps needs no account, keeps your script in your own browser, and can run recognition on-device so audio never leaves your machine. Speakflow adds recording and collaboration; letter maps stays a focused, private, free prompter.
Frequently asked questions
- Is Speakflow really free?
- There is a free tier, but as of June 2026 it limits Flow (voice scrolling) and keeps only 7 days of script history; unlimited Flow and storage need a paid plan (Plus from about $15/month billed annually). letter maps is free with unlimited use.
- Does Speakflow keep my scripts private?
- Speakflow stores scripts and recordings in its cloud and states it does not share them with third parties, but whether the voice-following audio is processed on-device or on its servers is not documented. letter maps keeps scripts in your browser and can process audio on-device.
- Does Speakflow work offline?
- No — it is an online tool. letter maps' on-device mode (Chrome 139+) works offline.
Sources
Other comparisons: PromptSmart, BIGVU, Teleprompter.com, CuePrompter