The honest version. Here's where we're genuinely different.
Undetectable.ai is a well-known English humanizer. Sahihly matches it on English while adding genuine Arabic support and a free, no-signup tier.
QuillBot is a paraphrasing staple for English. Sahihly focuses on AI detection plus meaning-safe humanizing across Arabic and English.
GPTZero popularized AI detection for educators. Sahihly offers detection plus humanizing, with first-class Arabic that GPTZero doesn't target.
Copyleaks is an enterprise-leaning plagiarism and AI-detection suite. Sahihly focuses on the writer: instant detection plus humanizing, free to try, and genuinely bilingual.
ZeroGPT offers quick free AI checks. Sahihly adds what comes after the score: sentence-level insight and a humanizer that fixes the style — in Arabic as well as English.