Animus Games: FlashFocus and Tether

Android · Language learning

FlashFocus

Study, test, create. One card at a time.

A focused flashcard app for Chinese, Japanese, Hindi and Urdu. Built for short sessions and long streaks. Works offline, no account needed.

iPhone & iPad · Memories

Tether

Close, wherever you are.

A shared timeline for you and the people you love. Write a memory the moment it happens, add photos, and see it land on their phone.

Coming soon to theApp Store Explore Tether
Meet the apps

FlashFocus · v5.0

Six study tools, one quiet app.

Designed for short, focused sessions. Lightweight, offline-ready, and packed without feeling crowded.

  • Interactive flashcardsFlip at your own pace, with text-to-speech.
  • Multiple choiceInstant feedback after every answer.
  • Listen & chooseHear the word, pick it by ear.
  • Word matchingFast-paced vocabulary recall.
  • Create your own cardsOr grab curated sets from the library.
  • Streaks & statsGentle reminders, no nagging.
中文Chinese日本語Japaneseहिन्दीHindiاُردُوUrdu+ more on the way
FlashFocus home: cards due, daily goal, streak and level, with the quiz menu and card creator behind it. A Chinese flashcard mid-swipe, with a Japanese card behind it. Daily goal met, a 16-day streak with two streak freezes, Level 12 and all-time stats. Favorite words with level and category tags, and the level filter. Multiple choice, typing and matching quizzes with instant feedback. A Speed Round in progress and the best-rounds leaderboard.
Study, quiz, create
The Tether timeline with a day counter and memories. Switching between paths: Rose, Mom and Jess. Writing a new memory. A memory with Rose's heart reaction. The timeline in dark mode.
Your timeline

Tether · for iPhone & iPad

Keep the little moments, together.

One timeline for each person you love, shared through iCloud. No account, no ads, and nothing stored on anyone's servers but your own.

  • Share a timelineMemories either of you add appear on both phones.
  • A path for each personYour partner, your mom, your best friend.
  • Count the days899 days since your first date, and counting.
  • React & PingA heart on a memory, a buzz when they're on your mind.
  • Private by designOn your device and in your own iCloud. We never see it.
  • Works offlineWrite anywhere. It syncs when you're back.
Coming soon to theApp Store The full Tether page
Schafer, smiling, on a balcony strung with painted paper umbrellas.
Wreck 'em!

The developer

Meet Schafer.

Hey there, I'm Schafer, the developer behind FlashFocus and Tether. I've been a full-time Android developer for the past 5 years, building mobile apps that are fast, clean, and genuinely useful.

FlashFocus started as a personal project: I wanted a flashcard app that actually felt good to use and worked offline. Tether is newer, a quiet and private place to keep the little moments with the people you love, made for iPhone and iPad.

I'm a Texas Tech grad, a lifelong car enthusiast, and the kind of developer who obsesses over the small details: smooth animations, clean architecture, and thoughtful UX.

  • Kotlin
  • Jetpack Compose
  • Room DB
  • Firebase
  • Swift
  • SwiftUI
  • SwiftData
  • CloudKit
  • Java
  • Python
  • Git / CI/CD
  • TDD
  • Espresso
  • Appium
  • Agile
  • 🚗 Cars
  • 📱 Mobile dev
  • 🌏 Language learning
  • 🏈 Texas Tech