Side by side
Celpip.me vs IELTS by IDP App
Both stand on language test prep apps. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan Web
Choose Celpip.me if you are an adult preparing for CELPIP-General and want timed practice, AI evaluation for productive skills, and a structured study plan. Consider another option if you need official test content or results: Celpip.me says it is unaffiliated with Paragon Testing Enterprises and cannot access either.
Visit Celpip.me Free plan AndroidiPhone
IELTS by IDP App combines study content and practice tools with test booking and results access. Its listed free access covers a range of preparation resources for three IELTS exam types.
Visit IELTS by IDP AppThe facts
| Celpip.me | IELTS by IDP App | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Not published |
| Runs on | Web | Android, iPhone |
| Lowest paid plan | Weekly: C$16.99, paid once | Free or on request |
| Plans published | 4 | 2 |
| Maker | Not published | IELTS by IDP App |
| Website | celpip.me | ielts.idp.com |
| On language test prep apps | #7 of 37 | #11 of 37 |
Celpip.me: what it does well
- Practice covers Listening, Reading, Writing, and Speaking.
- Includes 10 full-length timed mock tests.
- AI evaluates Writing and Speaking submissions at a CLB level.
- Reading and Listening tasks are auto-graded against answer keys.
- Works on mobile, tablet, and desktop.
What to know first
- The free account allows one timed mock test.
- Free Writing or Speaking evaluations are limited to three every 30 days.
- Paid plans are one-time purchases, and all sales are final.
IELTS by IDP App: what it does well
- Supports three listed IELTS exam types
- Free access includes articles, videos, and podcasts
- Includes mock tests and speaking practice
- Offers study planning and score tracking
- Provides test booking and results access
What to know first
- Available only on iOS and Android
- A 14-day trial is noted
Alternatives to Celpip.me Alternatives to IELTS by IDP App The whole list

