The short answer
No — Mango teaches mainland-standard Mandarin, not Taiwan's. Its Chinese (Mandarin) course is written in Simplified characters, uses Pinyin rather than Zhuyin, and Mango doesn't offer a separate Taiwan course or a Traditional-character option anywhere it describes its Chinese content. That said, it's a genuinely well-built, conversation-first course recorded by real native speakers, and many public libraries give you full access for free — so it's worth knowing exactly what you'd be getting.
What Mango's Chinese course actually is
Mango's Chinese (Mandarin) course runs to 559 lessons, built around short, practical conversations rather than word lists. Mango's own site describes grammar and culture notes woven into each lesson, spaced-repetition review that brings back words before you forget them, and a voice comparison tool for checking your pronunciation against the native speaker. Mango also says its core curriculum is entirely human-made, taught through native-speaker recordings rather than synthetic voices — a real point in its favor. There's a separate Chinese (Cantonese) course as well, plus short Mandarin specialty units on topics like Feng Shui and the Chinese zodiac.
Does Mango teach Traditional Chinese?
No, not as far as Mango's own materials show. The Chinese in Mango's current Mandarin grammar articles is written in Simplified characters, and so is every line of its downloadable Mandarin course guide — which even writes "Taiwan" in its Simplified form, 台湾, rather than 台灣 as Taiwan itself writes it. Mango doesn't mention Traditional characters, a character-set setting, or Taiwan anywhere on its Chinese course page. If you're comparing apps that do let you switch, see our breakdowns of LingoDeer and Rosetta Stone.
Does Mango teach Zhuyin?
No. Mango's materials spell out pronunciation in Pinyin, the romanization used in mainland China, and Zhuyin (Bopomofo) — the phonetic system Taiwan uses instead — doesn't appear anywhere in how Mango describes its Chinese course. The course guide's framing leans mainland too: it calls Mandarin 普通话 (pǔtōnghuà, the mainland's term for standard Mandarin) and builds its sightseeing vocabulary around Beijing's Forbidden City, Great Wall, and Summer Palace.