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KeyAI vs Microsoft SwiftKey

KeyAI and Microsoft SwiftKey both promise to make writing on iPhone faster, but they take very different approaches. Here is the side-by-side breakdown of what each one actually does.

Feature KeyAI Microsoft SwiftKey
Works inside your keyboard ✓ ✓
Number of AI tools 10+ 0 AI tools — predictive only
Tone change ✓ —
Translate 55+ languages 55+ 60+ for typing only, no AI translation
Paraphrase ✓ —
Ask AI any question ✓ —
AI-generated replies ✓ —
Sends text only on tap ✓ ✓
Auto-hides on password fields ✓ ✓
Supports 60+ keyboard layouts 60+ 60+ typing layouts
Cost $4.99/wk · $39.99/yr Free
Free trial 3 days —

Our verdict

Microsoft SwiftKey is a great free keyboard for prediction and swipe typing — but it has no AI writing tools. No tone change, no translation on-tap, no ask-AI, no rewrite. If you want a keyboard that genuinely uses AI to write better messages and emails, KeyAI is the upgrade. SwiftKey is for typing fast; KeyAI is for writing well.

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