How to use apps effectively — the honest version
Language learning apps are not courses. None of them, used alone, will get you to conversational ability in Mandarin, Malay, or Tamil. What they do reliably: build vocabulary through spaced repetition, expose you to correct pronunciation through audio, and create the daily habit of engaging with the language for 10–20 minutes when a formal class isn't scheduled. The expats who make fastest progress use apps as the connective tissue between lessons, not as the primary learning method.
With that framing set, here is what each major app actually delivers.
Mandarin apps
HelloChinese
The most curriculum-aligned Mandarin app available. HelloChinese structures its content around HSK levels 1–6, which means you can track your progress against a recognised benchmark. The distinguishing feature is character writing practice with stroke-order animations — most apps skip this entirely, leaving learners who want to write characters (rather than just read them) without guidance. Tone training is present and uses a recording function that evaluates your pronunciation, though it's more lenient than HeyChina's evaluator. Free tier covers HSK 1–2 material; a premium subscription is needed for higher levels.
Best used for: Structured daily learning from scratch, HSK 1–3 preparation, character writing practice.
Pleco
Pleco is not a learning app in the conventional sense — it's a dictionary with powerful add-ons. The free version includes the comprehensive ABC Chinese-English dictionary, Cantonese and Mandarin pronunciation audio, and a handwriting input panel that lets you draw characters you've seen but don't know. The SRS flashcard system is add-on that requires a small purchase but is arguably the best spaced repetition implementation available for Chinese vocabulary. Pleco runs offline, which matters if you're reviewing vocabulary on a commute with spotty data.
Best used for: Dictionary lookups, flashcard review, OCR text scanning (paid add-on).
HeyChina
Specifically strong for HSK 1–3 exam preparation. HeyChina's mock tests replicate the actual HSK test format — listening comprehension, reading, and grammar sections in timed conditions. The AI speaking evaluator is the best available in a free app for detecting tone errors: it flags which specific tones you're mispronouncing rather than just giving an aggregate score. If you're targeting HSK 2 or 3 and have a test date, HeyChina is the dedicated prep tool to prioritise in the final 6–8 weeks.
Best used for: HSK exam prep, tone correction, mock testing.
Apps covering Malay and Tamil
Duolingo — Malay course
Duolingo's Malay course is functional for beginners and benefits from the platform's well-developed gamification system for building daily habits. Vocabulary selection leans practical rather than textbook-formal. The audio quality is adequate; pronunciation models are from native Malay speakers. The main limitation is that Duolingo Malay stops well short of conversational competence — it's best used as a supplement to structured learning rather than as a standalone course. The free tier is sufficient for the first 2–3 months of learning.
Best used for: Habit building, beginner vocabulary, first two months of Malay learning.
Ling App
Ling is one of the few platforms that covers Mandarin, Malay, and Tamil in a single app. The AI chatbot feature — which puts you in open-ended conversations rather than scripted multiple-choice dialogues — is genuinely useful for getting past the artificial responses most apps train. Lesson quality varies between languages: the Malay content is solid, the Mandarin content is less structured than HelloChinese, and Tamil content is basic but improving. For expats learning more than one Singapore language, the value proposition of a single subscription covering all three is real. Pricing: approximately SGD 20/month or SGD 109/year.
Best used for: Multi-language learners, AI conversation practice, Malay beyond beginner level.
Mondly — Tamil module
Mondly's Tamil module is one of the better structured Tamil learning resources available in app form. It covers script basics in the first section, which most Tamil apps skip. Vocabulary selection includes practical phrases for market transactions and social interactions. The spaced repetition system is solid. It won't get you to conversational Tamil on its own, but combined with a tutor or CC course, it provides useful daily practice between sessions.
Best used for: Tamil script introduction, Tamil vocabulary building, daily review between tutor sessions.
Language exchange apps
Tandem
Tandem connects you with native speakers for language exchange. In Singapore's context, Tandem has a reasonable pool of Mandarin-speaking locals open to English exchange partnerships. Sessions work best when structured: 20 minutes in your target language, 20 minutes in English. The correction feature (where your partner highlights and corrects mistakes in-line) is more useful than correction through verbal feedback, which breaks conversational flow. The filtering tools let you find partners in Singapore specifically, which means you can arrange in-person meetups rather than only video sessions.
HelloTalk
HelloTalk has a larger user base than Tandem globally and a stronger community feature set — the "Moments" feed functions like a language-specific social network. For Mandarin specifically, HelloTalk has the largest pool of potential exchange partners. Tamil partners are harder to find but not impossible. The app's translation tools make it easy to compose messages in your learning language with help, which is useful in the early months when you can't construct sentences independently.
How to stack these apps
For Mandarin learners: HelloChinese as the primary daily lesson (15–20 min), Pleco for lookups throughout the day, HeyChina for dedicated exam prep in the final 8 weeks before testing, Tandem for weekly exchange sessions from month two onward.
For Malay learners: Duolingo for the first two months to build habit and foundation vocabulary, then transition to Ling for more advanced content and AI conversation, with Tandem or HelloTalk for exchange partnerships.
For Tamil learners: Mondly for script and beginner vocabulary, Ling for conversational practice, HelloTalk for finding Tamil exchange partners in Singapore.