Mobile professionals, executives, and frequent travelers spend hours triaging messages on smartphones while walking between meetings, waiting at airport gates, or riding between client sites. Composing nuanced, high-stakes business emails on a cramped touchscreen keyboard is slow, tiring, and prone to typos. Superhuman AI addresses this friction on iOS and Android through its native Write with Voice feature (commonly referred to as Voice to Email).
Instead of requiring users to tap out lengthy paragraphs or verbalize awkward punctuation marks into standard speech-to-text tools, Superhuman AI listens to unstructured, conversational speech and translates raw thoughts into structured, professionally formatted business correspondence tailored to the sender's authentic tone.
The Fundamental Shift: Verbatim Dictation vs. Intent-Based AI Drafting
Understanding how Superhuman AI transforms mobile workflow starts with distinguishing it from legacy smartphone dictation.
| Dimension | Legacy Mobile Dictation (Siri / Gboard STT) | Superhuman AI Write with Voice |
|---|---|---|
| Transcription Logic | Verbatim acoustic transcription; writes every word literally | Intent-driven generative interpretation; extracts core meaning |
| Handling Rambling & Filler | Captures "um," "ah," false starts, and spoken self-corrections | Automatically strips fillers and resolves verbal self-corrections |
| Formatting & Punctuation | Requires speaking syntax aloud ("comma," "period," "new line") | Automatically organizes text into salutations, paragraphs, and bullet points |
| Recipient & Field Parsing | Types spoken words only into the active text field | Can infer and populate the "To:" recipient and "Subject:" line |
| Voice & Tone Matching | Produces dry, unstyled verbatim text | Analyzes past sent messages to replicate personal phrasing and formality |
| Final Review Model | Raw transcription pasted directly into body | Polished draft presented in composer for one-tap review and refinement |
Standard voice dictation forces professionals to pre-compose complete, grammatically rigid sentences in their head before speaking. In contrast, Superhuman AI allows users to treat the microphone like a trusted executive assistant: speak freely, outline decisions, mention constraints, and let the model handle structure, tone, and formatting.
Step-by-Step Guide: Setting Up and Using Voice to Email
1. Device Setup and Permissions
Before using voice drafting, verify that Superhuman has access to the microphone and system speech tools.
- On iOS (iPhone / iPad):
- Open iOS Settings.
- Scroll down and select Superhuman.
- Ensure both Microphone and Speech Recognition are toggled on.
- On Android:
- Open Android Settings > Apps > Superhuman.
- Select Permissions > Microphone and set it to Allow while using the app.
2. Configure Personalization and Writing Style
Superhuman AI matches tone by analyzing previously sent emails. Users on supported plans can fine-tune output parameters to match corporate expectations:
- Open Superhuman on desktop or web, press
Cmd+K(Mac) orCtrl+K(Windows), and type Personalization (or navigate to Settings > Write with AI / Personalization). - Set default preferences for formality, message length (concise vs. detailed), greeting styles (e.g., "Hi [Name]" vs. "Dear [Name]"), and preferred sign-offs.
- Add context regarding job role, company focus, and communication guidelines so drafts reflect organizational standards.
3. Activating Voice to Email in the Mobile App
- Open the Superhuman app on your iOS or Android device.
- Start a new message by tapping the Compose button, or tap Reply / Reply All within an existing conversation thread.
- Locate the Voice icon (microphone) in the action toolbar directly above the mobile keyboard, positioned alongside the AI sparkle icon.
- Tap the icon to start voice capture.
4. Dictating Spoken Thoughts Naturally
Once the microphone indicator is active, speak naturally. You do not need to pause for punctuation or speak in continuous sentences. A high-efficiency voice prompt generally combines four elements:
- Recipient & Objective: Who the email is for and what needs to happen.
- Core Information: Decisions, meeting notes, project metrics, or updates.
- Action Items & Deadlines: Clear responsibilities and target dates.
- Tone Directives (Optional): Contextual adjustments such as "keep it brief" or "friendly but firm."
Practical Dictation Examples
- Post-Meeting Client Recap:
"Hey, write an email to Marcus Vance following our quarterly strategy session. Thank him for hosting us in Chicago today. Confirm that our team will deliver the revised SLA framework by next Tuesday at 3 PM Eastern. Mention that Rachel is finalizing the enterprise pricing tier, and ask if he wants our legal team to loop in his procurement director before Friday." - Internal Executive Delegation:
"Reply to David's update on the Q3 hiring pipeline. Tell him the engineering numbers look solid, but we need to put a hold on the contractor requisitions until the board meeting on Thursday. Ask him to send over a two-page summary of our headcount variance by noon tomorrow." - Rapid Rescheduling on the Go:
"Email Elena Diaz about tomorrow's lunch meeting. Tell her my morning flight from Frankfurt was delayed by two hours so I won't make our 12:30 slot. Propose pushing to 3:30 PM for coffee at the hotel lobby or moving to Thursday morning anytime after 9 AM. Apologize for the scramble."
5. Draft Generation and Automated Formatting
When you finish speaking, tap the stop/check button. Superhuman AI processes the speech input through its language model and inserts a formatted business email into the composer:
- Subject Line: Generates a concise, descriptive subject header if composing a new thread.
- Salutation: Automatically addresses the recipient by name.
- Body Structure: Organizes updates into logical short paragraphs.
- Lists and Bullet Points: Groups action items, dates, and deliverables into bulleted lists for immediate legibility.
- Sign-off: Inserts your standard professional closing and signature.
6. Review, Inline Refinement, and Sending
Superhuman enforces a human-in-the-loop workflow. An AI-generated draft is never sent automatically; it opens inside the composer for verification.
- Quick Review: Check critical details such as names, numerical values, deadlines, and dates.
- Inline AI Adjustments: If a section needs revision, highlight the text and tap the AI icon (sparkles) or prompt the AI to Shorten, Lengthen, Simplify, or Rewrite in my voice.
- Send or Schedule: Tap Send immediately, or swipe to schedule delivery for the recipient's morning business hours using Superhuman's scheduling tools.
Prompt vs. Output Comparison
The table below demonstrates how rambling, spontaneous verbal input is converted into structured business correspondence by Superhuman AI.
| Scenario | Spoken Input to Microphone | Resulting Email Generated by Superhuman AI |
|---|---|---|
| Sales Demo Follow-up | "Write an email to Sarah Jenkins. Thanks for joining our demo today. Send over the SOC 2 compliance package and our SOC 3 summary. Let her know our solutions engineering team can jump on a 30-minute security deep dive next Thursday at 2 PM PST. Also ask if she needs custom pricing for 150 seats." | Subject: Follow-up: Security Documentation & Next Steps; Body: Hi Sarah, Thank you for taking the time to join our demo today. I've attached our SOC 2 compliance package and SOC 3 executive summary for your review. Our solutions engineering team would be glad to host a 30-minute security deep dive next Thursday, October 15, at 2:00 PM PST to address any technical questions. Additionally, please let me know if you would like me to prepare a custom pricing proposal tailored to 150 seats. Looking forward to your thoughts. Best regards; |
| Internal Milestone Update | "Reply to the executive committee thread about Project Falcon. Everything is on schedule for the October launch. Frontend design is locked. Backend API testing finishes this Friday. Only blocker is third-party payment gateway approval, which legal is expediting. I will provide another sync on Monday." | Subject: Re: Project Falcon - Executive Status Update; Body: Hi team, Here is a brief status update on Project Falcon: All core deliverables remain on schedule for our October launch. Highlights include: 1. Frontend design is officially locked; 2. Backend API integration testing will conclude this Friday; 3. Current Blocker: Third-party payment gateway sign-off is pending, and our legal team is actively expediting review. I will share the next milestone sync on Monday morning. Best; |
| Polite Request Decline | "Email Michael Chang. Thank him for inviting me to speak on the venture panel next month. Unfortunately I have a scheduling conflict with our board retreat that week so I have to pass. Suggest reaching out to our VP of Product, Maya Lin, who would be a great speaker on that exact topic." | Subject: Speaking Invitation - Venture Panel; Body: Hi Michael, Thank you very much for inviting me to join the venture panel next month. Unfortunately, I have a direct scheduling conflict with our annual board retreat that week and won't be able to participate. I would highly recommend reaching out to Maya Lin, our VP of Product. She possesses deep expertise in this domain and would be a fantastic speaker for your audience. Thanks again for thinking of me, and best of luck with the event. Warm regards; |
Best Practices for Mobile Professionals
To achieve consistently accurate and ready-to-send results while traveling or commuting, incorporate these practices:
- State Recipient Names Clearly: Announce the recipient's first and last name or email address early in your dictation to ensure Superhuman connects the thread to the right contact.
- Explicitly Distinguish Constraints: When numbers, currencies, or dates are critical, verbalize them deliberately (e.g., "forty-five thousand dollars" or "Thursday the twelfth").
- Leverage Ambient Noise Filtering Hardware: When dictating in busy environments like train stations, airports, or moving vehicles, use wireless earbuds with beamforming microphones to prevent background noise interference.
- Use Contextual Threading: When replying to existing email chains, you do not need to re-explain background details. Superhuman AI reads preceding messages in the thread and incorporates relevant context into its draft.
- Utilize Superhuman Knowledge Base (Business & Enterprise Plans): Connect company documentation, collateral links, and knowledge repositories to Superhuman. When dictating updates, the AI references grounded enterprise data to supply accurate facts and links.
Limitations, Connectivity, and Security Considerations
- Active Data Connection Required: Superhuman AI processes speech and drafts through secure cloud inference models. An active cellular or Wi-Fi connection is required; offline drafting falls back to local text input.
- Language Optimization: Write with Voice is optimized primarily for English communication. While multilingual processing continues to evolve, English business conventions yield the highest structural precision.
- Enterprise Privacy Guarantee: Superhuman does not train machine learning models on customer email data. Queries and voice-generated drafting sessions adhere to strict business confidentiality standards.
- Mandatory Human Oversight: AI drafting speeds up message creation by up to 80%, but human oversight remains essential for confirming numerical commitments, legal phrasing, and high-stakes business agreements.