FluidVox vs Second Brain
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
FluidVox
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Stop typing. Start talking. FluidVox turns your voice into clean, formatted text in any app on your iPhone and iPad โ Messages, Mail, Notes, Slack, X, anywhere there's a text field. WHY FLUIDVOX You think faster than you can type. FluidVox closes that gap. Tap the mic, speak naturally, and watch your words appear as you talk. When you stop, FluidVox polishes them: filler words removed, punctuation and grammar fixed, formatted in the style you chose. CHOOSE YOUR PLAN FluidVox Pro โ cloud AI, nothing to set up โข Best-in-class cloud transcription that streams your words live as you speak โข AI cleanup in Polished, Casual, Professional, or a custom style you write yourself โข Monthly subscription with a 3-day free trial FluidVox Lifetime โ pay once, use local models or your own AI key โข Local Whisper dictation works on your device, including offline โข Add your Google Gemini API key for AI cleanup, audio-note and file transcription, titles, and summaries โข One-time purchase, no subscription CORE FEATURES โข Voice keyboard for any app โ dictate wherever you can type โข Live dictation: see your words appear as you speak, then get a polished version the moment you stop โข AI cleanup that removes "ums," repetitions, and rambling โข Turn long recordings into notes: lectures, meetings, and interviews become structured summaries with searchable transcripts โข Audio notes organized in folders with smart search โข Templates for emails, journals, meeting notes, and summaries โข Multilingual: dictate in your native language, with 99 languages supported on-device โข Live Activity and Dynamic Island keep your recording in view while you multitask BUILT FOR DAILY USE Students โ record full lectures, search transcripts, get summaries you can revisit before exams. Writers โ dictate articles, drafts, and journal entries hands-free. Professionals โ capture meetings, voice memos, and stray thoughts the moment they hit you. Accessibility โ typing isn't the only way to write. FluidVox makes voice-first input first-class. PRIVACY YOU CONTROL With Lifetime, local Whisper transcription stays on your device. When you configure a Gemini API key, audio notes and Gemini file transcription send audio to Google; AI cleanup, titles, and summaries send transcript text using your key. Pro uses secure cloud processing for transcription and AI features. We don't sell your data or train models on your audio. SUBSCRIPTION DETAILS FluidVox Pro is an auto-renewing monthly subscription with a 3-day free trial. Payment is charged to your Apple ID account when the trial ends unless you cancel at least 24 hours beforehand. Manage or cancel anytime in your App Store account settings. FluidVox Lifetime is a single one-time purchase. Privacy Policy: https://fluidvox.com/privacy-policy Terms of Use: https://fluidvox.com/terms-of-service Support: support@fluidvox.com
Second Brain
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Manage notes, to-dos, and your schedule in one app. Capture thoughts as notes, actions as to-dos, and anything with a date on the calendar. No more hopping between apps. โ Notes Write fast, organize later. Sort into folders and find anything with search. Share only the notes you choose via a link, and unshare with a single tap. โ To-Dos Set due dates and repeat rules. See what's left with D-Day countdowns, and group tasks by category. โ Calendar See to-dos and events on the same screen. Switch between month and week views to check how full your week is. โ Widgets Check today's tasks from your Home Screen and Lock Screen. See what's left without opening the app. โ Notifications Get notified as deadlines approach. Start the day with a morning briefing and wrap up with a daily summary. โ AI Organize Pull action items out of long text. Turn copied text into to-dos. Gather past records into a retrospective. AI features are free up to 3 times per month. To use more, connect your own AI API key. โ Same content on every device Notes written on iPhone open on the web too. Sign in once and your content follows you across devices. โ Privacy AI features only process text you explicitly send. See the privacy policy for details. https://docs.ainote.dev/legal/privacy
Screenshots
Verdict
The clearest difference is in-app purchases: Second Brain at none against FluidVox's 2. Second Brain also leads on update cadence (every 2 days vs every 3 weeks). FluidVox's advantage is iOS requirement (18.0 vs 26.0). On price, ads and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. FluidVox sells 2 in-app purchases, starting at $4.99 per month. Second Brain asks for nothing beyond the download.
FluidVox ships an update every 3 weeks, Second Brain every 2 days. Both last shipped on October 10, 2026.
| Parameter | FluidVox | Second Brain |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 weeks | Every 2 days โ better |
| Ads | No | No |
| In-app purchases | Yes | No โ better |
| Devices | iPhone | iPhone, iPad โ better |
| Requires iOS | 18.0 โ better | 26.0 |
| Further details โ not scored | ||
| Size | 24 MB | 26 MB |
| Age rating | 4+ | 4+ |
| Developer | AZ Digital Inc. | kim dahye |
In-app purchases
FluidVox
- FluidVox Pro$4.991 Month
- FluidVox Local Lifetime$14.99
Second Brain
No in-app purchases









