Head to head · Writing · updated Oct 26, 2026
Sapling vs Copyleaks
Sapling scores 17 to Copyleaks's 10 on public evidence for AI content detection, and they rank #2 and #4 there. Both are free to start. Numbers below are the same public signals the ranking uses, recomputed nightly — nothing here is sponsored.
Sapling
Writing assistant for support teams, with a free AI-content detector.
+ The detector is free and gives a per-sentence score.
− Detection is a side feature - the product is really autocomplete for agents.
Copyleaks
Plagiarism and AI-content detection with LMS integrations and an API, used by schools and enterprises.
+ Supports 30+ languages and integrates with Canvas, Moodle and Blackboard.
− Credit-based pricing is confusing, and false positives on edited human text are common.
Side by side
public evidence| Sapling | Copyleaks | |
|---|---|---|
| Evidence score / 100 | 17 | 10 |
| GitHub stars | closed source | closed source |
| Hacker News stories, 30d | 1 | 0 |
| Release-feed mentions, 30d | 0 | 0 |
| Last activity | – | – |
| Pricing | Free tier · Free detector and basic assistant; paid per seat | Free tier · AI Detector from $7.99/mo |
| Platforms | web, api, chrome-extension | web, api, chrome-extension |
| Maker | Sapling.ai | Copyleaks |
Which one?
Pick Sapling if
- you want the stronger public evidence (17 vs 10)
Best for support replies plus a free detector.
Pick Copyleaks if
Supports 30+ languages and integrates with Canvas, Moodle and Blackboard.
Best for multilingual detection with LMS integration.