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Free42 vs Kalker

Both stand on Scientific Calculator Apps: Free42 at #12, Kalker at #13.

The facts side by side

  • Free tierPriceFree tier
  • —Public API—
  • —Open source—
  • YesFree tierYes
  • —Free trial—
  • —Web✓
  • ✓Windows✓
  • ✓Mac✓
  • ✓Linux✓
  • ✓iOS—
  • ✓Android✓
  • ✓Free plan✓
  • cross-platformPlatform supportcross-platform
  • —Equation solving✓
  • ✓Statistics tools—
  • ✓Programmable functions✓
  • ✓Complex numbers✓
  • —Offline mode—
  • ✓Matrix operations✓
  • #12Standing on Scientific Calculator Apps#13