Laying out the streets…STEP 1 OF 3

OpponentBook · House #22,204

The private journal you keep on every opponent

In the Training and sport tracking neighborhood (Personal). In town since 25 Sept 2026.

Nobody has claimed this house yet. Tablif records every new product and gives it a house; when its owner claims it, the lights go on.

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What Tablif read on OpponentBook's site

OpponentBook describes itself as: “OpponentBook — The journal you keep on every opponent — and on yourself.”

What it is

Calls itself “journal”.

  • Calls itself: journal
“OpponentBook is a private journal for individual-sport athletes”

What it costs

Monthly subscription and yearly plan. A free tier, free forever. 6 prices listed on its pages, from $10 to $399.

  • Monthly: yes
  • Yearly: yes
  • Free plan: free forever
  • Price: 6 prices, from $10 to $399
“$19.99 /mo”
“$199 /yr on the web”

Who it sells to

Sells to consumers. Made for athletes. Available in 18 languages.

  • Sells to: consumers
  • Made for: athletes
  • Languages: 18 languages
“OpponentBook is a private journal for individual-sport athletes”
“Bahasa Indonesia”

How it runs

A mobile app and web app for Android. Runs locally and works offline. Hosted in the cloud. Distributed through the App Store and Play Store. AI is a side feature. Built with Umami.

  • Kind: mobile · web
  • Runs on: Android
  • Runs where: cloud / hosted · on the device, offline
  • Distributed via: App Store · Play Store
  • AI role: a side feature
  • Analytics: Umami
“The same journal on phone, tablet and laptop.”
“Use the same journal in the Android app and on the web by connecting the same storage account.”

What it works with

Names Apple, Apple Calendar and 5 more on its pages.

  • Names: Apple · Apple Calendar · Dropbox · +4
“Apple, the Apple logo and App Store are trademarks of Apple Inc., registered in the U.S. and other countries.”
“The file works with calendar apps such as Google Calendar and Apple Calendar.”

What it offers as proof

Live, no waitlist. Trying it asks for an email. Publishes a blog.

  • Instant signup: yes
  • Trial asks for: an email address
“Sign up free”
“Sign up free Free forever · No card required · Works offline”

Sources

Tablif read these pages, last on 7 Oct 2026. Everything above is what the product says about itself; Tablif does not verify every claim.

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