An honest side-by-side comparison of REVv against Gboard, Microsoft SwiftKey, Apple Writing Tools, Google Magic Compose, and using ChatGPT in a separate app. Updated June 2026.
No marketing fluff — what each option does and does not do, by feature.
| Feature | REVv | Gboard | SwiftKey | Apple Writing Tools | Magic Compose | ChatGPT (separate app) |
|---|---|---|---|---|---|---|
| Works as a system keyboard | ● | ● | ● | ○ | ○ | ○ |
| Context-aware smart replies | ● | Basic | Basic | ○ | ● | ● |
| One-tap tone rewrite | ● | ○ | ○ | ● | Partial | Manual |
| Real-time translation | 18+ langs | Yes | Yes | ○ | ○ | Manual |
| Works in WhatsApp, dating apps, Slack | ● | ● | ● | ○ | ○ | ○ |
| Voice-to-text (polished output) | ● | Basic | Basic | ● | ○ | ● |
| Personalises to your writing style | ● | ○ | ○ | ○ | ○ | Manual |
| No app switching required | ● | — | — | — | — | ○ |
| On-device AI (privacy) | Yes + secure proxy | Partial | Partial | ● | ○ | ○ |
| AR camera lenses | 44 (Pro) | ○ | ○ | ○ | ○ | ○ |
| Location-aware features | Walk & Learn | ○ | ○ | ○ | ○ | ○ |
| Health/HRV-aware tone | ● | ○ | ○ | ○ | ○ | ○ |
| Platforms | iOS + Android | iOS + Android | iOS + Android | iOS only | Android (Google Messages only) | iOS + Android + Web |
| Price | Free / $4.99 mo / $39.99 yr | Free | Free | Free (with Apple Intelligence) | Free | Free / $20+ mo |
Gboard is a brilliant general-purpose keyboard — autocorrect, swipe typing, predictions, GIF search. But its AI features stop at suggestion bars. REVv is purpose-built around AI: it reads the whole conversation, rewrites your draft in any tone, translates in real time, and learns your personal writing style. Many people keep both — Gboard for plain typing, REVv when they need AI help.
Microsoft's SwiftKey added a Copilot button that opens a chat overlay. That's still app-switching with extra steps. REVv keeps you in the conversation: tap and your reply appears inline. SwiftKey is owned by Microsoft and routes through Copilot; REVv runs partly on-device and routes the rest through its own proxy, with no analytics SDKs.
Apple Writing Tools is great if you live inside Apple apps. The catch: many third-party messengers — WhatsApp, Slack, Telegram, dating apps — don't expose the Writing Tools menu, or expose only a stripped-down version. REVv is a keyboard, so it works the same in every app. It also adds tone rewrites, translation, AR lenses, and personalisation that Writing Tools doesn't offer.
Google Magic Compose is genuinely useful — but it only works inside Google Messages on Android. If most of your chat happens in WhatsApp, Instagram DMs, or Slack, Magic Compose can't help. REVv works everywhere a keyboard works.
Many people already use ChatGPT to draft replies — they just do it in a separate app. The workflow: copy the message, switch to ChatGPT, paste, wait, copy the reply, switch back, paste. REVv collapses that to one tap inside the keyboard. You stay in the conversation; the AI comes to you.
Siri, Google Assistant, and Bixby can dictate or send messages, but they don't help with tone, translation, or context-aware suggestions while you type. REVv handles all three — and works silently inside the keyboard for situations where speaking out loud isn't an option.
Free to start. iOS and Android. No card required.