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Comparison · 2026
31Memorize vs InterSub
31Memorize vs InterSub: side-by-side comparison of pricing, ratings, and features on SoftwareVital (2026).
Feature lists share 0 overlapping items across the two listings.
free
AI-powered vocabulary learning tool using spaced repetition to help you retain words and prepare for language tests.
VS
free
Browser extension that shows dual subtitles and translates unfamiliar words while you watch videos.
Side-by-side
| Attribute | 31Memorize | InterSub |
|---|---|---|
| Rating | — | — |
| Reviews | — | — |
| Pricing | free | free |
| Votes | 0 | 0 |
| Category | AI Language Learning | AI Language Learning |
Features checklist
| Feature | 31Memorize | InterSub |
|---|---|---|
| Machine learning-powered spaced-repetition system | ||
| 15 new word lookups per month | ||
| or unlimited with ads | ||
| Unlimited dual subtitles without AI translation on-the-fly | ||
| Auto-save words to vocabulary (Wordbook) | ||
| Pay-as-you-go 50 | ||
| 100 | ||
| 200 | ||
| or 500 word lookups | ||
| Unlimited access to your Wordbook | ||
| Unlimited dual subtitles with AI translation on-the-fly |