Doomersion

Doomersion (doomlingo.ai) is a consumer mobile language-learning app that teaches languages by "doomscrolling" — a vertical, TikTok-style feed of short-form videos in the learner's target language, matched to their level, with clickable explainer subtitles that let you tap any word for an instant translation and grammar note. Founded by Mostafa Afr and backed by Y Combinator, the app ships on iOS and Android. Doomersion exposes no public developer API, SDK, or documentation surface; this record is an API Evangelist network company profile capturing its public web and identity footprint.

Doomersion is profiled on the APIs.io network. Tagged areas include Company, Language Learning, EdTech, Mobile App, and Consumer.

Doomersion’s developer surface includes support and 6 more developer resources.

🌐 Visit website 📡 Source on GitHub

11.8/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5

0 APIs

CompanyLanguage LearningEdTechMobile AppConsumerShort-Form VideoY Combinator

Kin Score

Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5

Composite quality — 11.8/100 · minimal

Contract Quality 0.0 / 25

Developer Ergonomics 0.9 / 20

Commercial Clarity 4.2 / 20

Operational Transparency 0.0 / 13

Governance 0.0 / 12

Discoverability 6.8 / 10

Agent readiness — 0/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 15

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/doomersion: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Support

Support

Commercial 2

Pricing, plans, and the legal terms of use

PrivacyPolicy

PrivacyPolicy

TermsOfService

TermsOfService

Company 1

The organization behind the API

Website

Website

Other 2

Properties that don't map to a standard resource type

AppStore

AppStore

GooglePlay

GooglePlay

Source (apis.yml)

aid: doomersion
name: Doomersion
description: Doomersion (doomlingo.ai) is a consumer mobile language-learning app that teaches languages by "doomscrolling"
  — a vertical, TikTok-style feed of short-form videos in the learner's target language, matched to their level, with clickable
  explainer subtitles that let you tap any word for an instant translation and grammar note. Founded by Mostafa Afr and backed
  by Y Combinator, the app ships on iOS and Android. Doomersion exposes no public developer API, SDK, or documentation surface;
  this record is an API Evangelist network company profile capturing its public web and identity footprint.
url: https://raw.githubusercontent.com/api-evangelist/doomersion/refs/heads/main/apis.yml
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
image: https://doomersion.com/L2%20BLACK.png
x-type: company
x-source: vc-portfolio
x-backed-by:
- y-combinator
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-18'
tags:
- Company
- Language Learning
- EdTech
- Mobile App
- Consumer
- Short-Form Video
- Y Combinator
apis: []
common:
- type: DomainSecurity
  url: security/doomersion-domain-security.yml
- type: Website
  url: https://doomersion.com/
- type: PrivacyPolicy
  url: https://doomersion.com/privacy
- type: TermsOfService
  url: https://doomersion.com/terms
- type: Support
  url: https://doomersion.com/support
- type: AppStore
  url: https://apps.apple.com/us/app/doomersion/id6753957215
- type: GooglePlay
  url: https://play.google.com/store/apps/details?id=com.mostafaafr.doomlingo
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence