Head to head · Writing · updated Oct 26, 2026
Sapling vs QuillBot
Sapling scores 17 to QuillBot's 11 on public evidence for AI content detection, and they rank #2 and #3 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.
QuillBot
A paraphraser, grammar checker, summarizer and AI detector/humanizer popular with students.
+ The paraphraser's mode slider (fluency, formal, simple, creative) is the fastest way to rework a clumsy paragraph.
− Paraphrased text sometimes changes meaning, and its humanizer and detector are unreliable against serious detection tools.
Side by side
public evidence| Sapling | QuillBot | |
|---|---|---|
| Evidence score / 100 | 17 | 11 |
| 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 · Premium from $4.17/mo billed annually |
| Platforms | web, api, chrome-extension | web, mac, windows, ios, android, chrome-extension |
| Maker | Sapling.ai | QuillBot (Learneo) |
Which one?
Pick Sapling if
- you want the stronger public evidence (17 vs 11)
- you need it on api
Best for support replies plus a free detector.
Pick QuillBot if
- you need it on android, ios, mac
Best for paraphrasing and quick rewrites.