Sapling vs Writefull
Sapling
sapling.aiWritefull
writefull.comSide by side
| Figure | Sapling | Writefull |
|---|---|---|
| Price from | $12/mo | $12.50/mo |
| Free plan | Yes | Yes |
| Free trial | Yes | — |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | Yes | Yes |
| macOS | — | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | — |
| Plans published | 7 | 7 |
| Spec score · AI Grammar Checkers | 8.7 (#10) | 8.6 (#13) |
| Spec score · AI writing assistants | 8.9 (#11) | 9.2 (#7) |
| Browser extension | Yes | Yes |
| Data handling | Sapling says it discards numbers, email addresses, and URLs before processing, and offers an option where data is never stored on disk. | Writefull says it does not store users’ text or use text or interactions to train its AI, and it does not sell data to third parties. |
| Free plan | Yes | Yes |
| Security | Sapling states that it uses TLS encryption in transit and AES-256 encryption at rest, and that it is GDPR compliant and SOC 2 Type II certified. | Writefull says it uses technical and organizational measures to protect personal data from loss, unauthorized access, misuse, alteration, and disclosure. |
| Support | The pricing page lists email and ticket support for paid tiers, and dedicated support contact for Enterprise. | Writefull directs users to its FAQs, Help Center, and contact form for assistance. |
| Writing tools | Its tools include grammar and spelling corrections, autocomplete, rephrasing, tone and sentiment checks, and AI content detection. | Writefull offers paraphrasing, style changes, sentence splitting and joining, summaries, explanations, and title and abstract generation. |
Plans
Sapling
- FreeFree
- Pro$25 a month
- Pro$144 a year
- Enterprise$15 a month
- API$5, paid once
- APIPriced on request
- FreePrice not published
Writefull
- FreeFree
- FreeFree
- Premium$150 a year
- Premium$150 a year
- Group$285 a year
- Group$285 a year
- InstitutionPriced on request
In their own words
Sapling
Sapling combines writing assistance for teams with developer tools for adding language model-powered features to applications. Its writing tools include grammar and spelling corrections, autocomplete, rephrasing, tone and sentiment checks, and AI content detection. Style suggestions and tone detection are available, with support for 14 languages. Developers can access HTTP API endpoints and SDK components, including Python and JavaScript client libraries. Sapling lists 73 integration guides, with examples for Zendesk, Salesforce, Slack, Google Docs, Microsoft Word and browser extensions. It is available on the web, through extensions and Windows, via API, and in self-hosted deployments. Sapling says it uses TLS encryption in transit and AES-256 encryption at rest, and describes GDPR compliance and SOC 2 Type II certification. Enterprise accounts include audit logs, role-based access and single sign-on. The free plan has AI detector limits; paid writing assistance starts at $12/user/mo billed annually, and a 30-day trial is listed. API trials have a character limit and expire after one month.
Writefull
Writefull provides AI language feedback, writing tools, and data insights for research writing. Its language models are trained on academic texts and suggest improvements to grammar, word use, style, and phrasing. Other tools can paraphrase, change style, split or join sentences, summarize or explain text, and generate titles and abstracts. Writefull integrates with Overleaf, offering LaTeX-tailored feedback, TeXGPT, and table and equation generators. Its Microsoft Word add-in works with Windows, Mac, and Word Online. The service is available on the web, Windows, macOS, and as a browser extension. The Overleaf extension supports Chrome, Chromium, and Brave; Writefull Revise supports Chrome, Firefox, Safari, and Chromium-based Edge. Revise returns edits through Track Changes and is limited to publishers and institutions. A free plan has limited quotas for language editing and rewriting. Writefull says it does not store users’ text, use text or interactions to train its AI, or sell data to third parties. Some features use third-party APIs, with user consent requested before text is sent.