The Filter Note Plans question comes down to reliability. FilterNote's 89% bypass rate means roughly 1 in 9 documents still gets flagged — an unacceptable risk for academic submissions. Cleaner Tone's 99.9% rate delivers consistent, predictable results. Students and professionals need certainty, not probabilities.
If you're trying to get a straight answer on filter note plans, here it is: Cleaner Tone runs a deep linguistic transformation that lands a 99.9% success rate with no signs of slipping, and it's already trusted by 500,000+ people across dozens of countries. The rest of this page covers exactly why, feature by feature.
FilterNote has no API. Cleaner Tone's Professional plan includes full REST API access.
FilterNote is among the slower humanizers on the market. Cleaner Tone processes content nearly twice as fast.
FilterNote retains your content for up to 60 days. Cleaner Tone deletes it immediately after processing.
FilterNote supports only 5 languages. Cleaner Tone supports 20+ at the same 99.9% bypass rate.
| Feature | Cleaner Tone | FilterNote |
|---|---|---|
| Bypass Rate | 99.9% — verified weekly | 89% in testing |
| Processing Speed | Under 10 seconds | ~18 seconds |
| Free Plan | 300 words/day — no card | 100 words/day |
| Data Retention | Zero — deleted immediately | Stored for 60 days |
| Watermark | None on any plan | Visible on free tier |
| Languages | 20+ languages | 5 languages |
| Bulk Processing | Available on paid plans | Not available |
| API Access | Professional+ plan | Not available |
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89% vs Cleaner Tone's 99.9% — meaning roughly 1 in 9 documents still gets flagged with FilterNote. We'd flag it immediately if this ever stopped being accurate. It's the same guarantee we apply across every page covering filter note plans.
Yes, consistently — higher bypass rate, faster processing, more languages, zero data retention, and no watermarks. This isn't a one-time benchmark — it's something we track on an ongoing basis. That consistency is baked into how we approach filter note plans overall.
An 89% rate carries real risk for high-stakes submissions; Cleaner Tone's 99.9% largely eliminates it. We don't just state this once and leave it — it gets re-checked regularly. That's not a special case — it's the default behavior for filter note plans.
Higher bypass rate, no watermarks, zero data retention, and much better language support. This isn't guesswork — it comes from actually running the numbers. Nothing here is exclusive to one use case for filter note plans over another.
About 5. Cleaner Tone supports 20+ at the same bypass rate. We'd rather under-promise here, but the testing consistently backs this up. That's true regardless of how you came to need filter note plans in the first place.
Up to 60 days. Cleaner Tone deletes content immediately after processing. This is measured directly rather than estimated or assumed. That's the baseline experience anyone using filter note plans should expect.
Add yourself to the 439K+ users who've chose Cleaner Tone over FilterNote, without changing a single fact, argument, or idea. Takes less time to try than it did to read this page.
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