I just saw many bloggers share their defalut apps in App Defaults. Here's my list:

• 📨 Mail Client
  • Apple Mail
  • Skiff Mail for hi@lawrenceli.me.
• 📮 Mail Server
  • Outlook (available in China Mainland)
  • Skiff Mail. Unfortunately, POP3/IMAP is not supported yet.
• 📝 Notes
  • Apple Notes (with montaigne.io you can make your Apple Notes be a website)
• ✅ To-Do
  • Apple Reminders
• 📷 iPhone Photo Shooting
  • Apple Camera
• 🟦 Photo Management
  • Apple Photos with iCloud Sync
• 📆 Calendar
  • Service: iCloud Calendar
  • Client: Apple Calendar
• 📁 Cloud File Storage
  • iCloud Drive (iCloud+)
  • Aliyun Drive (for Apple TV)
• 📖 RSS
  • Client: Reeder on iOS/Mac
  • Service: Self-hosted FreshRSS, great PWA and web notification support.
• 🙍🏻‍♂️ Contacts
  • N/A, No contacts.
• 🌐 Browser
  • Chrome on Mac
  • Safari on iOS
• 💬 Chat
  • WeChat (a must app in China)
  • Microsoft Teams (for Work on iOS)
• 🔖 Bookmarks
  • Instapaper
• 📑 Read It Later
  • Instapaper in Reeder
• 📜 Word Processing
  • ONLYOFFICE (open source office, offers complete compatibility with Microsoft ones)
  • Obsidian (popular markdown editor, sync up via iCloud)
• 📈 Spreadsheets
  • ONLYOFFICE (open source office)
• 📊 Presentations
  • Slidev (Generate the slide/ppt online by markdown)
• 🛒 Shopping Lists
  • Shared Reminder List with Apple Reminders
• 🍴 Meal Planning
  • N/A
• 💰 Budgeting and Personal Finance
  • Previously Finances 2 on iOS, currently trying BeanWise
• 📰 News
  • Solidot (Chinese version of slashdot )
  • Reuters
  • Hacker News
• 🎵 Music
  • Music (Student subscription only cost 5 RMB per month)
  • NetEase Music (As a complement to Apple Music)
• 🎤 Podcasts
  • Apple Podcast Universal Podcast Client, no censorship
• 🔐 Password Management
  • iCloud Keychain
  • Google Authenticator for 2FA

My extra defaults

• 🚀 Self Hosting
  • Cloudflare (for CDN & DNS), Vercel, Cloudflare Workers, fly.io
• 🤖 Automation
  • IFTTT, Apple Shortcuts (previously Workflow)
• 🛜 Network Tools
  • Tailscale, Cloudflare WARP, MerlinClash