Rehearse a Conversation and Save New Phrases
Practise a situation, inspect a correction and return to useful vocabulary.
The short answer
Dia may suit adult learners who want to rehearse an everyday conversation and keep the vocabulary that arises from it. It combines voice messages, live calls, explanations and saved words. The free allowance is specific, and Premium calls still have a daily limit; neither the AI corrections nor a simulated interview should be treated as an official language assessment.
Rehearse a situation and keep a useful phrase
Choose the target language and describe a situation such as ordering coffee. Reply by voice or text, inspect the correction and save a useful word or phrase for review. Calls provide live speaking practice with optional captions, while the word bank offers a way to revisit material outside the original chat.
The store describes 28 languages with 42 language/regional options. Its exam/interview examples are practice scenarios, not official mock exams or certified scores.
Compare message and call allowances separately
A free account includes 10 messages and two call minutes each day. Premium removes the daily message cap but includes ten call minutes per day. New accounts receive a 24-hour Premium experience with ten call minutes in total; the description says it does not turn into a paid plan. Guidebooks remain free on every plan.
The US purchase list contains several Premium, challenge and diamond products with different names, including $7.99 Premium Access and $6.99 weekly/one-month entries. Listing them is not confirmation that every user can buy them now. Review the actual duration, renewal and included call access before purchasing.
Limitations & considerations
- A free account is required for chat. Free access includes 10 messages and 2 call minutes per day; Premium includes 10 daily call minutes, not unlimited calls.
- The 24-hour new-account Premium experience includes 10 call minutes in total and does not convert to a paid subscription.
Use the linked official pages for current platform, access and purchase conditions.
Sources & scope
Reviewed November 8, 2026. Official/store information checked November 8, 2026. Source-based guidance; no installed-device or outcome test is claimed.
- Dia · official website
Publisher product identity and guide links.
- Dia · US App Store
Version 2.3.4, daily free/Premium limits, non-converting new-account experience and multiple IAP entries.
- Dia: Learn Languages with AI · privacy information
Publisher disclosures about local records, connected processing and user controls; not an independent privacy audit.
