Is there a good app for learn language grammar?
Lacks Features: 19 apps already serve this, and 12 data points mined from real user reviews show where they fall short. Apps exist but miss features users keep asking for. Enter with the missing feature.
Data refreshed July 20, 2026 · scores recompute weekly as new reviews are mined, so re-check before you build.
What users complain about
The most common complaints behind apps that try to learn language grammar, mined and clustered from real reviews:
| Complaint area | Type | Mentions | What a user said |
|---|---|---|---|
| confusing grammar/pronunciation lessons | ux | 2 | The grammar and pronunciation lessons are confusing |
| grammar and sentence instruction | missing-feature | 1 | I can't even GET into the restaurant without knowing basic grammar and sentences |
| grammar not thoroughly taught | missing-feature | 1 | grammar is not as thoroughly taught and I have to supplement with YouTube and other apps |
| grammar and syntax fundamentals under-taught | missing-feature | 1 | critical fundamentals like grammar and syntax are treated like footnotes mentioned once in a sidebar |
| grammar rule explanations | missing-feature | 1 | makes almost no effort to clarify grammar rules |
| no grammar instruction | missing-feature | 1 | They also don’t focus on grammar at all |
| thin grammar review with no intermediate content | missing-feature | 1 | grammar review section it is very thin... only for beginners not intermediate users |
| teaches phrases not grammar/vocabulary composition | other | 1 | You have to memorize phrases instead of learning how to put vocabulary together. Doesn’t teach grammar |
| no sentence structure/grammar teaching | missing-feature | 1 | things like the structure of the sentence… it doesn’t teach any of that |
| no dedicated grammar practice | missing-feature | 1 | no way to work on grammar |
| too much grammar, not enough everyday vocabulary | other | 1 | far too much emphasis on conjugation of verbs... and not enough on every everyday vocabulary |
Apps that already serve this
| App | Rating | Ratings | Price |
|---|---|---|---|
| Duolingo: Language Lessons | 4.7 | 5,333,132 | Free |
| Grammarly: AI Keyboard & Notes | 4.7 | 219,366 | Free |
| LangLearn: AI English Tutor | 4.6 | 18,650 | Free |
| Language Learning: Pingo AI | 4.6 | 13,119 | Free |
| Learn English Phrases | 4.7 | 101,845 | Free |
| Speak: Language Learning | 4.8 | 52,396 | Free |
| Pimsleur | Language Learning | 4.7 | 28,264 | Free |
| Innovative Language Learning | 4.4 | 42,144 | Free |
Should you build it?
Apps exist but miss features users keep asking for. Enter with the missing feature. Opportunity here scores 33 out of 100 — a function of demand, how crowded the field is, and how badly the existing apps perform. Use the live map to compare it against adjacent tasks.
Who has tried building this
Only 3 attempts, 2 active but small (top 29 stars); lightly explored against dominant commercial apps.
| Project | Status | Stars | Stack |
|---|---|---|---|
| ArtCC/freelingo | active | 29 | JavaScript |
| edigu/almanca | stale | 16 | |
| Shards-inc/Linguamate-ai-tutor | active | 6 | HTML |
Open-source projects that attempted this task — active ones show today's bar; abandoned ones are a signal to validate why earlier attempts died.
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