- Monthly visits
- <5K
- Sep 2026
- Public revenue
- Undisclosed
- No public revenue evidence yet
- Entry price
- Unknown
- No monthly subscription pricing
- Launched
- 13y ago
- 2013-05-19 · Est.
Traffic
Marketing moves
Launches, search & content, referrals, promotionsLaunched on Product HuntLaunch
Remember every article you read online, forever
Jun 4, 2023 · 3y agoLaunch page
Launched on Product HuntLaunch
Spaced repetition flashcard app that makes remembering easy
May 9, 2021 · 5y agoLaunch page
Store data
Chrome Web Store
Chrome Web Store Chrome Web Store
- Rating
- Rating not syncedRating count not synced
- New ratings last mo
- —
- Price & IAP
- FreeIAP data not synced
- Current version
- —Store metadata
Store assets, rating histograms, install tiers, and screenshots are synced from Apple App Store, Google Play, and Chrome Web Store.
Traffic sources
Sep 2026
Traffic breakdown
Channels
- Direct36%
- Organic Search35%
- Referrals9%
- Social8%
- Other13%
Countries
- Vietnam68%
- Brazil32%
Search
Domain authority —Domain registered 2021-02-28
| Keyword | Monthly volume |
|---|---|
| harken | 12.3K |
| harken research | 120 |
Traffic data: Vaneform
Pricing
Pricing page not identified yet, or no public pricing listed.
Pages & changes
Tracked since 2021-05-09
Key pages
Weekly snapshotsChanges
No pricing, plan, or positioning changes detected since tracking started.
Questions & evidence
- How much website traffic does Harken get?
- Vaneform estimates <5K website visits in 2026-09. Visits can include repeat visits; this estimate measures web traffic separately from paying customers or revenue.Source
- What is Harken and what platforms does it support?
- Harken is catalogued under Study Tools: Never forget what you learn again.. Supported platforms: Browser Extension.
Related products in this category
Education / Study Tools
These products share a catalog category. Compare customer tasks, features and deployment requirements before treating them as alternatives.
| Product | Entry price | Visits | Revenue |
|---|---|---|---|
| QuizletGiantHow do you want to study? | $6.99/mo | 77.7M | $139M/yrClaimed |
| StuDocuGiantOther AIs guess. Studocu knows. | — | 39.3M | Undisclosed |
| SolvelyWhat students actually say about Solvely.ai | $8.99/mo | 4.5M | Undisclosed |
| Study StarkStudyStark is India's free study platform. Access free video lectures, notes, PDFs and study batches. Generate your free key and unlock all content on studystark.com. | — | 3.3M | Undisclosed |
| AnkiRemembering is easier with Anki | $24.99/mo | 3.2M | Undisclosed |
| موقع المساعد التعليميموقع يهدف الى توفير جميع الاحتياجات الدراسية للطلاب في جميع انحاء العراق | — | 2.5M | Undisclosed |