kitio.aiDETPractice vs Casper Practice Test
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. DETPractice starts at See pricing page and Casper Practice Test starts at See pricing page. Check both pricing pages for current plans.
At a glance
Best for
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- DET question bank
- Adaptive mock tests
- AI writing correction
- AI speaking correction
- DET courses and guides
- 56+ scenario question bank
- Full-length timed tests
- Video and written stations
- AI scoring and model answers
- English and French
| Feature | DETPractice | Casper Practice Test |
|---|---|---|
| Best for | Duolingo English Test prep with AI-scored mock exams and corrections | Free CASPer practice with timed simulations and AI-scored answers |
| Category | Education | Education |
| Pricing model | Freemium | Freemium |
| Starting price | See pricing page | See pricing page |
| Free plan | Yes | Yes |
| Made by | DETPractice | Casper Practice Test |
| Based in | – | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
DETPractice starts at See pricing page and Casper Practice Test starts at See pricing page. Check both pricing pages for current plans.
Free plan
Cheapest paid plan
Top plan
Free trial
Prices in USD, checked Oct 29, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
DETPractice
- Covers every DET question type
- Mock test results within minutes
- Members get a DET exam discount
- Only useful for the Duolingo English Test
- Prices not shown clearly on the site
- Mock test access expires after 90 days
Casper Practice Test
- Free full-length simulation
- No signup to start
- One-time purchase, no subscription
- Unofficial, not run by Acuity Insights
- AI scores only approximate real ratings
- Pricing page shows unrelated plans
Which one should you choose?
Choose DETPractice if you want:
- Covers every DET question type
- Mock test results within minutes
- Members get a DET exam discount
Watch out: only useful for the duolingo english test.
Choose Casper Practice Test if you want:
- Free full-length simulation
- No signup to start
- One-time purchase, no subscription
Watch out: unofficial, not run by acuity insights.
DETPractice vs Casper Practice Test FAQ
What is the difference between DETPractice and Casper Practice Test?
DETPractice: Duolingo English Test prep with AI-scored mock exams and corrections. Casper Practice Test: Free CASPer practice with timed simulations and AI-scored answers. Both are education tools.
Is DETPractice or Casper Practice Test cheaper?
DETPractice starts at See pricing page and Casper Practice Test starts at See pricing page. Check both pricing pages for current plans.
Do DETPractice and Casper Practice Test have free plans?
DETPractice: Yes. Casper Practice Test: Yes.
Who makes DETPractice?
DETPractice is made by DETPractice.
Who makes Casper Practice Test?
Casper Practice Test is made by Casper Practice Test.
Which should I choose, DETPractice or Casper Practice Test?
Choose DETPractice if you value covers every det question type and mock test results within minutes. Choose Casper Practice Test if you value free full-length simulation and no signup to start.