Products

Codex4

The app for serious language learners.

codex4.com Education / Language Learning

AI Benchmark
Desktop
Monthly visits
<5K
Oct 2026
Public revenue
Undisclosed
No public revenue evidence yet
Entry price
$25/mo
Higher than 91% of peersNiche median $8/mo
Creators
Jonas Richner
No social account linkedCo-created with Raphael Richner
Launched
19mo ago
2025-04-11 · Est.

Traffic

Monthly visitsData through Oct 2026
Events1 marketing move

Marketing moves

Launches, search & content, referrals, promotions
X accounts@audiobazooka@jgamesch

  • Launched on Show HN (1 pts)Launch

    A Serious Language App

    Nov 13, 2025 · 12mo agoLaunch page

  • Launched on Product HuntLaunch

    Add your own words. Then learn them in context.

    Apr 19, 2025 · 19mo agoLaunch page

  • Launched on Show HN (2 pts)Launch

    Codex4 Beta — I built a tool to help you expand your Japanese and German vocabulary. You can easily add your own words and then learn them in context. T…

    Apr 11, 2025 · 19mo agoLaunch page

Traffic sources

Oct 2026

Traffic breakdown

Channels

  • Organic Search37%
  • Direct31%
  • Referrals10%
  • Social5%
  • Other17%

Countries

No data yet

Search

Domain authority —Domain registered 2024-12-02

KeywordMonthly volume
codex download430.7K
codex app72K

Traffic data: Vaneform

Pricing

Free
Unknown
Learn 200 words for free
Pro
$25/mo
Learn up to 50 new words per day

Trial: None · 1 paid tier ($25) · Observed 2026-11-04 · Pricing page

Entry price $25/mo, Higher than 91% of peers; “Language Learning” median is $8/mo.View pricing benchmark

Pages & changes

Tracked since 2025-04-19

Key pages

Weekly snapshots
codex4.com/ Snapshot 2026-11-04

Changes

No pricing, plan, or positioning changes detected since tracking started.

Questions & evidence

How much does Codex4 cost?
Free: Unknown; Pro: $25/mo. Observed 2026-11-04. Check the source for current billing terms, usage limits and taxes.Source
How much website traffic does Codex4 get?
Vaneform estimates <5K website visits in 2026-10. Visits can include repeat visits; this estimate measures web traffic separately from paying customers or revenue.Source
What is Codex4 and what platforms does it support?
Codex4 is catalogued under Language Learning: The app for serious language learners.. Supported platforms: Web.

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