Shortwave vs Wordtune
A 2026 side-by-side comparison of Shortwave and Wordtune — pricing, key features, platforms, API access, and the trade-offs of each, based on data collected from their official sites.

Shortwave
Automate your email with agentic AI

Wordtune
Express yourself with confidence and take your writing productivity to new heights with AI.
Tagline
Automate your email with agentic AI
Express yourself with confidence and take your writing productivity to new heights with AI.
Pricing
Rating
Platforms
API
Open source
Description
Shortwave is an AI-powered email client designed to manage, organize, search, and automate your inbox. Utilizing advanced LLMs, it offers conversational AI assistance, custom AI filters, context-aware writing in your voice, scheduling integration, email bundle triage, and secure, private team collaboration.
Wordtune is an AI-powered writing assistant that helps you rewrite, paraphrase, and refine your text for clarity, impact, and authenticity. Developed by AI21 Labs, it offers advanced tools such as grammar checking, summarization, proofreading, and vocabulary enhancement, allowing you to easily adjust writing tones, translate text, and produce error-free content.
Key features
- AI Assistant for conversational email management and delegation
- AI Search to query your email using plain natural language
- Custom AI Filters written in plain English to automatically label, star, or archive
- Inbox Splits to divide your inbox into custom, focused tabs
- Email Bundles to group promotions, updates, or custom labels as single items
- Delivery Schedules to control when emails arrive in your inbox
- Private Team Comments and mentions to discuss emails directly in the app
- Shared Live Threads and read statuses to coordinate with teammates
- Voice Learning AI to draft replies that sound like your unique writing style
- Keyboard Shortcuts to process email workflows entirely without a mouse
- Tasklet Integration to connect to 3,000+ apps and automate workflows
- Google Workspace and Advanced Protection Program support
- Sentence and paragraph rewriting
- Casual and formal tone adjustments
- Advanced AI proofreading and grammar checking
- Document and text summarization
- Text expansion and shortening
- Multi-language translation to English
- Vocabulary enhancements
- SAML SSO and centralized billing for teams
- Google Docs and Wordtune Editor integrations
Pros
- Available across multiple platforms including iOS, Android, Mac, and Windows.
- Employs third-party security reviews and undergoes annual CASA Tier 2 verification audits.
- Saves time by grouping mailing lists, newsletters, and promotional emails into bundled rows.
- Adapts and learns the user's specific voice and style based on sent emails.
- Allows team members to privately comment on live email threads and collaborate without forwarding.
- Guarantees that customer data is never used to train third-party LLMs.
- Enables delivery schedules so you can control exactly when non-urgent emails enter your inbox.
- Provides a clear 14-day full refund policy for paid subscriptions.
- Offers a completely free basic plan with core rewrite and spelling corrections.
- Translates Spanish, Mandarin, Arabic, Hindi, Korean, Hebrew, Russian, German, French, and Portuguese into English.
- Allows switching between casual and formal writing tones with a single click.
- Checks at least 5 credible sources before presenting factual metrics and recommendations.
- Provides official web extensions for both Google Chrome and Microsoft Edge browsers.
- Available as a dedicated mobile application for iOS users.
- Offers a 30% discount on both monthly and annual plans for eligible students and educators.
- Supports safe team onboarding with SAML SSO and centralized administrative billing.
Cons
- Longer conversations inside the AI assistant process entire chat history, rapidly consuming daily quota limits.
- Refunds are strictly unavailable once the initial 14-day payment period expires.
- The Business paid plan limits users to roughly 150-300 standard AI requests per day.
- Premium tiers can be expensive, with the Max tier scaling up to $120 per user.
- Compliance options like SOC 2 Type II or GDPR are not self-serve and require manually contacting support.
- Paid premium subscriptions are completely non-refundable.
- Free accounts are strictly limited to 10 rewrites and AI suggestions per day.
- Tone-changing features (casual vs. formal) are missing entirely on free plans.
- The unique Spices feature is only available in Google Docs and the online Wordtune Editor.
- The free trial lasts only 3 days and requires users to enter payment details upfront.
Pricing plans
- BusinessUSD30/month
- • Standard intelligence
- • AI autocomplete, summaries & attachment analysis
- • Read statuses, link tracking, snippets & more
- • Full standard search history
- PremierUSD45/month
- • Everything in Business, plus Advanced intelligence
- • 2x more usage
- • 100 threads per AI search
- • 2x context tokens
- MaxUSD120/month
- • Everything in Premier, plus Expert intelligence
- • 6x more usage
- • 150 threads per AI search
- • 3x context tokens
- BasicUSD0
- • Spelling corrections
- • Grammar checks
- • AI generations
- AdvancedUSD4.89/month
- • AI recommendations
- • Spelling corrections
- • Grammar checks
- UnlimitedUSD6.99/month
- • Vocabulary enhancements
- • Clarity improvements
- • Fluency increases
- • Premium support
Which one should you pick?
- Choose Shortwave if you need AI Assistant for conversational email management and delegation.
- Choose Wordtune if you need Sentence and paragraph rewriting.
- On budget: Shortwave is freemium, Wordtune is freemium.