> For the complete documentation index, see [llms.txt](https://manual.trancy.org/en/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://manual.trancy.org/en/billing-and-plans/faq.md).
# Faq
Below are quick answers to the questions we hear most often. Each answer links to the full guide for the complete details.
### Plans and pricing
**Is Trancy free? What is the difference between Free, Premium, and Premium + Advanced AI?**
Yes, Trancy has a free tier. Bilingual subtitles and Flashcard Practice are free, while the AI features (AITalk, AI Pronunciation Assessment, AI Learning Assistant, AI Shadowing, AI Subtitle, and the AI word features) are part of Premium. Premium + Advanced AI adds higher AI quotas and the Advanced AI model options. See the [Premium ](/en/billing-and-plans/premium.md)page for the full breakdown, and the pricing page for current prices.
How many words and sentences can I save for free?
On the free plan you can save up to 100 words and up to 50 sentences. Premium removes both limits. See [Practice Words ](/en/get-started/use-learning-deck/practice-words.md)and [Practice Sentence ](/en/get-started/use-learning-deck/practice-sentence.md)for details.
### Platforms and subtitles
**Which platforms does Trancy support?**
Trancy works on YouTube, Netflix, Disney+, Udemy, Coursera, TED, edX, and HBO Max. On most of these it uses the platform's existing captions; AI Subtitle (Trancy's own transcription) is YouTube-only. See [Bilingual subtitles ](/en/get-started/use-extension/bilingual-subtitles.md)for how subtitles work on each site.
**What is AI Subtitle, and which videos can it transcribe?**
AI Subtitle uses Whisper to generate subtitles for YouTube videos that have no captions. It is a Premium feature and is YouTube-only, with a quota of 40 transcriptions per day (60 per day on Premium + Advanced AI). See [Bilingual subtitles ](/en/get-started/use-extension/bilingual-subtitles.md)for details.
**Which translation engines and AI models does Trancy use?**
Trancy supports several translation engines and lets you bring your own API key (BYOK). Premium + Advanced AI adds model options including GPT-5-mini, GPT-4.1 mini, DeepSeek V3, Claude 4.5 Haiku, and Gemini 2.0 Flash. See [Custom Translation Engine](/en/get-started/use-extension/custom-translation-engine.md) to choose and configure an engine.
**Does Trancy have a mobile app?**
Yes. Trancy has native iOS and Android apps, with the Android app now available. The mobile experience is YouTube-focused. Podcast support is live on iOS, with Android coming soon. See [Download Mobile App ](/en/get-started/download-mobile-app.md)to get the apps.
### Learning Center
**What languages can I learn with Trancy?**
Trancy supports up to 10 learning languages (as of June 5, 2026). The current list is set in your account, and the supported set can change over time. See [Account settings ](/en/get-started/use-learning-deck/account-settings.md)for the up-to-date list and how to choose your learning language.
**Is AITalk free?**
AITalk is listed as a Premium feature on the pricing page. The in-product experience is the source of truth, so if you see a limited free taste in the app, that takes precedence. See [AITalk](/en/get-started/use-learning-deck/ai-talk.md) for what it does and how to use it.
### Billing and account
**How do refunds work?**
Monthly plans are eligible for a no-questions-asked refund within 7 days, and yearly plans within 30 days. Any Advanced AI usage during that period may be deducted from the refund. See [Refund ](/en/billing-and-plans/refund.md)for the full policy.
**How many devices can I use?**
You can use up to 6 devices simultaneously on one account. See [Subscription ](/en/billing-and-plans/subscription.md)for how device sync and your membership work.
**My membership status did not update after payment — what do I do?**
Open the Trancy plugin, click the “More” button at the bottom right of the plugin to update the membership information.
*Last updated: June 5, 2026*
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