$0
always
Up to 172 essentials. 20 cards/day. Audio on every word.
Start free →Pay once, monthly, or yearly. Or don't.
Free is real, not a fourteen-day countdown. Pro is access. Mastery is yours either way.
$14.99
per month
Cancel anytime.
Go monthly →$99
per year
$8.25/mo · save $81 vs monthly.
Choose annual → Or pay once — $199 lifetime → · Break-even at year two. Year three onward is free.
Just curious or only here for a holiday? Free will get you 172 essentials and a get-by vocabulary. Staying a month or two? Monthly. Committing to the year? Annual — save $81 vs monthly, and learning Thai is a year-plus thing. All-in on Thailand? Lifetime. One decision, no billing emails.
What's actually different.
Most Thai apps gate native audio behind a paywall. We don't — the same native-trained Thai voice plays on every word, free or paid. The difference between tiers is corpus size and daily cap, not how it sounds.
| Feature | Free | Monthly · Annual | Lifetime |
|---|---|---|---|
| Curated word + phrase corpus | 172 essentials | All 2,400+ | All 2,400+ |
| Daily practice limit | 20 cards/day | Unlimited | Unlimited |
| Native-trained Thai audio | |||
| Eight grammar lessons | First two | All eight | All eight |
| Scenarios + dialogues | — | ||
| Compositional pedagogy | — | ||
| Future content + updates | Free tier expansions | Everything | Everything, forever |
"Pro is access, not mastery. The next ten minutes you spend on the deck does the actual work — the tier just decides which words are in front of you when you sit down."
Pricing questions.
Is the free tier really free, or a trial? ▾
Really free. No countdown, no credit card. 172 essential words and 20 cards a day, indefinitely. The audio quality is identical to Pro — the difference is corpus size and daily cap, not learning quality.
What does Pro actually unlock? ▾
The full 2,400+ word corpus, all eight grammar lessons, every scenario and dialogue, and unlimited daily practice. The free tier is the daily-survival vocabulary; Pro is the long tail of words you'll meet once you're past the basics.
What does “lifetime” mean? ▾
Lifetime of the product. We’ve committed to running ThaiDai for as long as it has paying users. If we ever shut down, lifetime ends with it — and we have no plans to shut down.
Can I get a refund? ▾
30-day no-questions-asked refund on any plan. After 30 days refunds are at our discretion — usually fine if the reason is reasonable. Email hello@thaidaiapp.com.
30-day money-back guarantee·Cancel anytime·Stripe secure checkout