Knowji vs Heights AI
A detailed comparison to help you choose between Knowji and Heights AI.
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Verdict: Heights AI wins
Heights AI scores 4.0/5, edging out Knowji at 1.6/5. Online course creators and coaches who want courses, community and checkout in one platform and will use the AI Coach as a weekly forcing function.
Knowji Visual vocabulary learning with spaced repetition and AI | Heights AI AI coach for online course creators | |
|---|---|---|
| Rating | 1.6 (1 review) | 4.0 (1 review) |
| Pricing Model | freemium | paid |
| Starting Price | Free tier available | From $99/mo |
| Best For | Nobody today — the service is discontinued; readers encountering old recommendations should pick Anki, Quizlet or Duolingo instead. | Online course creators and coaches who want courses, community and checkout in one platform and will use the AI Coach as a weekly forcing function. |
| Free Tier | ||
| API Access | ||
| Team Features | ||
| Open Source | ||
| Tags | free tiermobile app | — |
| Visit Knowji → | Visit Heights AI → |
Knowji
Pros
- + Methodologically sound design in its lifetime: spaced repetition with visual, auditory and contextual mnemonics per word
- + One-time pack purchases ($3.99–$11.99 historically) instead of subscriptions, per directory records
- + Offline study after initial download, with progress and memorisation-prediction tracking
- + Content organised from elementary to graduate level with SAT/GRE/TOEFL and ESL packs
Cons
- - The company has closed: knowji.com is a parked domain as of 23 October 2026 and the official X account announced the shutdown
- - Orphaned App Store listings remain installable with no backend, no updates and no support
- - No pricing exists to quote — aggregator pages listing current Knowji subscriptions are stale scrapes
- - Coverage was primarily English vocabulary with no conversational practice
- - Learning data cannot be exported or recovered through any vendor channel now that the company is gone
Heights AI
Pros
- + The AI Coach is the most distinctive feature in its category: after an intake conversation it sent me weekly tasks tied to my stated goals, not generic advice
- + Course Generator produced a structurally sound draft (modules, lesson titles, description) in minutes — real time saved at the blank-page stage
- + Zero transaction fees on payments you collect, across every plan
- + All-in-one coverage — courses, community, digital products, coaching, website, email — under one login, with unlimited video hosting
- + Capterra 4.9/5 from 77 reviews and an AI roadmap (Heights AI 3) that is shipping, not vaporware
Cons
- - The $29 entry plan is deliberately narrow (1 challenge course, 100 active students, no AI website builder); the features a real business needs sit at $119/month
- - AI writes structure, not substance — course drafts and lesson reviews need your own material before anything is sellable
- - Active-student and contact caps create upgrade pressure; only the $499/month Academy tier is truly unlimited
- - Pricing is inconsistent across the vendor's own pages — legacy ladders ($19/$99) still appear in comparison articles alongside the current $29/$49/$119/$499
- - Built for the course-business model only — poor fit for internal LMS use, marketplaces, or membership without courses
Frequently Asked Questions
Which is better, Knowji or Heights AI?▼
Heights AI scores higher at 4.0/5 vs 1.6/5 for Knowji, making it the better-rated option in our comparison.
What is the difference between Knowji and Heights AI?▼
Knowji: Knowji teaches vocabulary through illustrated word cards and spaced repetition, with apps aimed at school-age learners and test preparation. Heights AI: Heights Platform is course and community software for creators, covering course building, memberships, coaching and sales in one place.
Is Knowji or Heights AI more affordable?▼
Knowji starts at €0/mo, Heights AI starts at €99/mo. Check the comparison table above for current pricing.
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