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Duolingo English Test practice with AI scoring and mock tests

According to OpenAITools.app telemetry verified on 2026-10-06, DET Practice (detpractice.com) is an AI platform indexed under AI Writing Assistants generating 99.22K monthly visits with a month-over-month traffic delta of +24.43K (+32.7%). Its primary geographic market is Russia (11.8% traffic share), and it operates on a Freemium, Paid pricing model. Top competing alternatives by monthly volume include ChatGPT (6B visits/mo), DeepL (96.77M visits/mo), Grammarly (59.78M visits/mo).
DET Practice is an all-in-one preparation platform for the Duolingo English Test and a Platinum Partner of the test. It combines a question bank of 18,000+ practice questions, full-length adaptive mock tests, and AI scoring for speaking and writing, so candidates get detailed feedback within minutes. Courses, an AI tutor, and score guides round out the offering, and a free tier lets you try practice questions and scoring before upgrading.
Side-by-side telemetry comparison of competing AI tools in the same primary category
| Rank | AI Tool | Monthly Visits | MoM Growth | Stickiness | Pricing | Head-to-Head |
|---|---|---|---|---|---|---|
| ● | DET Practice | 99.22K | +32.7% | 35% Direct | Freemium, Paid | Current |
| 1 | ChatGPT | 6B | +5% | — | Freemium | vs ChatGPT |
| 2 | DeepL | 96.77M | -2.3% | 63% Direct | Freemium | vs DeepL |
| 3 | Grammarly | 59.78M | +21.3% | 44% Direct | Freemium | vs Grammarly |
| 4 | AI Summarizer - 1 | 37.71M | +4.8% | 17% Direct | Flexible | vs AI Summarizer - 1 |
| 5 | Quillbot Paraphraser | 35.81M | +12% | 29% Direct | Freemium | vs Quillbot Paraphraser |
| 6 | Gamma AI | 21.1M | +6.5% | 48% Direct | Free | vs Gamma AI |
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