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lum9a vs CallFirst

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

lum9a compared with CallFirst
Detaillum9a logo lum9aCallFirst logo CallFirst
What it doesThe cutest to-do list, free forever Screen time app that unlocks social media after a real phone call with someone you love
StageNot given Startup
FoundedNot given Not given
Based inNot given GB
Pricing modelFreemium Freemium
PricingFree plan: unlimited tasks and calendar sync, XP, levels, Glow and world building, streaks, daily gifts, focus sessions and reminders, sync across all devices. Plus Monthly: $1.99 per month, everything in Free plus no ads, Aurora and Halo outfits with new monthly outfit, more study sounds, 2 extra s Free tier with one contact and daily unlock; paid tiers available with pricing varying by region and currency (from GBP 0 to GBP 59.99). Annual subscriptions and one-time purchases available.
Key features
  • Canvas and Google Calendar sync
  • XP and leveling system
  • Pixel world building with Glow currency
  • 25-minute focus timer with sounds
  • Daily streaks and streak savers
  • Smart phone reminders
  • Friend sharing and world viewing
  • No password sign-in with email
  • Cross-device sync
  • Multiple world locations unlocked by leveling
  • Blocks Instagram, TikTok, YouTube, X, Threads, Facebook and Snapchat until 60-second phone call
  • On-device call verification without access to call logs or audio
  • Customizable blocking schedule with one-tap activation
  • Supports both regular phone calls and WhatsApp calls
  • Multiple contacts and named groups on Pro tier
  • Privacy-first design with no contact data synced to servers
  • Daily unlock system resetting each day
  • Free tier with one contact and one daily unlock
What makes it different
  • Free forever with no credit card required
  • Makes homework engaging through pixel world gamification
  • Automatic Canvas assignment syncing
  • Integrates school and personal tasks in one place
  • Works on any device as a web app
  • Designed for personal connection rather than productivity blocking
  • Call-based unlocking replaces generic friction like timers or breathing exercises
  • Verification happens locally on-device without server access to contact data
  • One simple mechanism designed for maximum behavioral impact
Free planNot given Not given
Open sourceNot given Not given
PlatformsNot given Not given
Public APINot given Not given
Community votes00
DR (Domain Rating by Ahrefs)5 +4 (up) since last check3 no change since last check
Trust Flow (Majestic)00
Citation Flow (Majestic)020
Referring domains (Majestic)118

5 details filled in for both companies.

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