Frequently asked questions

10to10 is a daily English grammar practice app designed for ESL students in Southeast Asia, grades 2 through 12. Each day, students answer 10 multiple-choice grammar questions matched to their grade and skill level.

For 6 days, you practice new grammar questions. On Day 7, the app creates a revision session using questions you got wrong during the week. This spaced repetition ensures you learn from your mistakes instead of repeating them.

The question bank covers tenses, articles, prepositions, subject-verb agreement, pronouns, conjunctions, modals, conditionals, and more — all aligned to Southeast Asian ESL curricula.

Yes. We collect minimal data (name, grade, answers), have no social features or chat, and no third-party analytics. Your child's data is never sold or shared with advertisers.

Yes! The Smart Practice+ plan includes shareable weekly reports that show accuracy rates, topic breakdowns, and areas for improvement. You'll receive a link you can view on any device.

Most students complete their 10 daily questions in 5–10 minutes. It's designed to fit into a busy school day without feeling like a burden.

Currently, students use 10to10 individually. Classroom features with teacher dashboards are planned for a future release. Teachers can use the shareable reports to track individual student progress.

The question bank is designed for the common ESL grammar curriculum used across Thailand, Vietnam, and Cambodia. Grade-level targeting ensures questions are age-appropriate.

Yes! Every new account gets a 14-day free trial with all features unlocked, including AI explanations and shareable reports. No credit card required.

Absolutely. You can upgrade from Core Practice to Smart Practice+ at any time. Your progress and data are always preserved.

We accept payment through the App Store (iOS) and Google Play Store (Android). Both support credit cards, debit cards, and mobile payment methods available in your region.

10to10 is available on iOS (iPhone and iPad) and Android. You need an internet connection to download your daily questions, but completed sessions sync automatically.

You need an internet connection to start each daily session and submit answers. AI explanations also require a connection. We're exploring offline mode for a future release.

All data is encrypted in transit (HTTPS) and at rest. We use industry-standard JWT authentication, bcrypt password hashing, and role-based access controls. We do not share data with third parties.