Wordtune vs Superhuman
A feature-by-feature comparison of Wordtune and Superhuman across 7 capability categories.
Modalities — Tie
| Feature | Wordtune | Superhuman |
|---|---|---|
Text Input | Yes, requires free plan. Rewrite, tone, grammar, continue-writing. No credit card required. | Yes, requires pro plan. Email compose, docs, and Grammarly Go accept text. Paid product. |
Image Upload / Vision | No. Writing assistant, not vision. | Unknown. Whether AI reads images in mail was not checked. |
Image Generation | No. Does not generate images. | No. Mail and docs product, not image gen. |
Voice Mode | No. Not a voice assistant. | Unknown. Voice features were not confirmed. |
Video Understanding | Partial. Homepage: can summarize YouTube videos (and docs/articles/webpages). That is summary, not full video vision. | No. Not a video product. |
Video Generation | No. Not a video generation product. | No. Not a video generation product. |
File Upload (PDF, DOCX) | Partial. Summarizes documents. A PDF-chat workspace was not specified. | Partial. Email attachments and docs. Not a general PDF chat uploader. |
Code Execution | No. Not a code sandbox. | No. Not a code sandbox. |
Audio Input | No. Not a speech product. | Unknown. Dictation was not confirmed. |
Canvas / Artifact Editor | No. Inline rewrite, not a canvas. | Partial. Superhuman Docs editor for collaborative writing. |
Screen Sharing / Computer Use | No. No computer-use. | No. No computer-use product. |
Memory & Context — Superhuman Wins
| Feature | Wordtune | Superhuman |
|---|---|---|
Persistent Memory | No. Not a personal-facts memory profile. | Partial. Sounds Like You and writing style learn over time. |
Large Context Window | Unknown. No token window on the homepage. | Unknown. Depends on underlying models. Not published on homepage. |
Custom Instructions | Partial. Formal/casual tone and rewrite modes. Not a global instruction profile. | Partial. Sounds Like You adapts tone. Not a full system-prompt editor. |
Conversation History | Unknown. Not specified on the homepage. | Yes, requires pro plan. Email threads and docs history persist in the product. |
Integrations — Superhuman Wins
| Feature | Wordtune | Superhuman |
|---|---|---|
Web Search / Browsing | Partial. “We check at least 5 sources before deeming a fact credible.” That is grounded rewrite, not a search box. | Unknown. Web search in AI features was not confirmed. |
Plugins / Extensions | No. No plugin store. | Yes, requires pro plan. 800+ tool integrations in the Superhuman suite. |
API Access | Unknown. Not on the homepage. | No. Consumer productivity app, not a public API. |
Zapier Integration | Unknown. Not checked. | Unknown. Zapier integration was not checked. |
Custom GPTs / Bots | No. No custom-GPT store. | No. Not a GPT store. Distinct from Grammarly matrix tool. |
Real-time Collaboration | No. Not multiplayer. | Yes, requires pro plan. Real-time collaborative docs. |
Live Social Data Integration | No. No live social firehose. | No. No social firehose. |
Live Citation Mapping | Partial. Essay FAQ: includes citations and sources with generated information. Not a live academic mapper like Perplexity. | No. Not a cited-search product. |
Developer — Tie
| Feature | Wordtune | Superhuman |
|---|---|---|
Function Calling | No. Not a developer tools API. | Unknown. Tool use in AI features was not confirmed. |
Streaming Responses | Unknown. Not specified. | Partial. AI writing suggestions stream inline. |
Fine-Tuning | No. You do not train Wordtune. | No. Does not fine-tune models. |
Embeddings API | No. Not an embeddings API. | No. Not an embeddings product. |
Structured Output (JSON) | No. Returns sentences, not JSON schema. | No. Outputs mail and docs, not JSON schemas. |
Reasoning / Thinking Mode | No. Rewrite suggestions, not Deep Think. | Unknown. Reasoning models in AI features were not confirmed. |
Local Execution | No. Cloud + extension. | No. Cloud-synced mail and docs. |
Open Weights | No. Closed product. | No. Proprietary product stack. |
Multi-Agent Orchestration | No. Not an orchestrator. | No. Not a multi-agent platform. |
Platforms — Wordtune Wins
| Feature | Wordtune | Superhuman |
|---|---|---|
Web App | Yes, requires free plan. wordtune.com. | Yes, requires pro plan. Superhuman mail and docs in the browser. Paid seats. |
iOS App | Yes, requires free plan. Homepage cites a 97% App Store rating. | Partial. Mobile apps are advertised for mail. |
Android App | Unknown. “Mobile device” is mentioned. Android was not isolated. | Partial. Mobile apps are advertised for mail. |
Desktop App | Partial. “Desktop” is listed as a place it works. A native installer was not specified. | Partial. Native mail clients for Mac and Windows. |
Chrome Extension | Yes, requires free plan. Official Chrome extension is a primary surface. | Unknown. Extension strategy was not checked; Grammarly has one separately. |
Privacy — Tie
| Feature | Wordtune | Superhuman |
|---|---|---|
GDPR Compliant | Unknown. Needs a DPA read. | Unknown. Compliance docs were not re-read. |
Opt Out of Data Training | Unknown. Not on the homepage. | Unknown. Training policy was not checked. |
Enterprise Privacy Mode | Unknown. Not on the homepage. | Partial. Enterprise mail plans exist. DPA not read this round. |
Workspaces — Tie
| Feature | Wordtune | Superhuman |
|---|---|---|
Projects / Folders | No. Not a project product. | Partial. Labels and splits organize mail; docs have folders. |