Lightbulb

Spec sheet

What it does

Lightbulb is a native iOS keyboard for generating, polishing, and rewriting text inside other apps.Read 12 Oct 2026 · lightbulbai.app

Free plan

YesRead 21 Sep 2026 · lightbulbai.app

Integrations

The site names WhatsApp, Slack, Apple Mail, Gmail, iMessage, Instagram, LinkedIn, X, Threads, Line, and Apple Notes as supported apps with text fields.Read 12 Oct 2026 · lightbulbai.app

Support

The site lists [email protected] for support and says it usually replies within 1 business day.Read 12 Oct 2026 · lightbulbai.app

Brand voice controls

YesRead 21 Sep 2026 · lightbulbai.app

Data deletion

The privacy policy says verified deletion requests permanently purge an account and associated personal data within 30 days.Read 12 Oct 2026 · lightbulbai.app

Data handling

The privacy policy says it collects identity, usage, and technical device information and shares personal data only with verified infrastructure providers or as required by law.Read 12 Oct 2026 · lightbulbai.app

Device requirement

The app is a native iOS keyboard extension and supports iOS 17 and above on iPhone and iPad.Read 12 Oct 2026 · lightbulbai.app

Follow-up reminders

Users can set thought reminders and follow-up alerts while typing.Read 12 Oct 2026 · lightbulbai.app

Full Access

The site says iOS requires Full Access for custom keyboards that communicate with AI models over the network and synchronize templates with the main app.Read 12 Oct 2026 · lightbulbai.app

Keystroke privacy

The site says normal typing stays on the device and text is processed only after the user taps an AI action; it says it does not log keystrokes or sell data.Read 12 Oct 2026 · lightbulbai.app

Language support

multilingualRead 21 Sep 2026 · lightbulbai.app

Paid subscription

The terms say certain features require a paid subscription and that in-app purchases and subscriptions are managed through the Apple App Store.Read 12 Oct 2026 · lightbulbai.app

Personalization

Lightbulb says it learns the user's tone and adapts formatting rules for WhatsApp, LinkedIn, Instagram, and Gmail.Read 12 Oct 2026 · lightbulbai.app

Saved templates

Users can pin frequent replies, outreach scripts, addresses, and hashtags to the keyboard shelf for pasting.Read 12 Oct 2026 · lightbulbai.app

Text assistance

It can turn rough bullets into polished emails, adjust tone, fix grammar, and translate text.Read 12 Oct 2026 · lightbulbai.app

Plans and prices

Every Lightbulb plan and price →

Where Specifiction places it

• AI Writing Tools#94 of 2698.3