Lightning Assist vs SprintBrain

Lightning Assist is a desktop text expander for Windows, macOS, and Linux. It turns short triggers into snippets inside desktop applications, including Gmail, Slack, Zendesk, Outlook, Word, Notion, VS Code, Cursor, and terminal apps. AI Commands can rewrite, summarize, or fix text with a hotkey, while AI Enhance rewrites selected text in place. Push-to-talk voice typing transcribes speech at the cursor and is available on the free tier using Speech Credits. Pro includes Lightning Recall, which suggests a saved snippet based on the phrase being typed and runs on the user's device. The maker says the native app works offline, keystrokes stay on-device, and synced snippet content is encrypted in transit and at rest. Free accounts allow up to 20 snippets and five snippets per import; Pro supports unlimited snippets and imports and up to 15 teams. The pricing page lists Pro at $5.99 per user per month as its paid-from price and also shows $2.99 per month with code LIFETIME50, described as 50% off monthly. A 14-day trial is offered.

SprintBrain combines reusable text snippets, prompts, and persistent context in one workspace for people working with AI. In web text fields, users can expand saved snippets with a shortcut or select an item from the right-click menu. Templates can calculate totals, discounts, fees, and net prices, with support for conditional rules and date tokens. The Chrome extension includes a searchable prompt library for inserting reusable prompts into AI chat interfaces. Users can optionally sync with a designated Notion database; the integration is read-only. Teams can share folders with View, Edit, or Owner access, and team analytics report expansion counts, top triggers, activity over time, and a contribution heatmap. SprintBrain offers a Chrome extension, browser dashboard, and mobile website usable on iOS or Android. Its privacy policy says snippets are stored locally in Chrome rather than on its servers, while account data is stored with Supabase in the EEA. The service is currently free, with no usage limits stated. Its terms describe pre-launch or early access, with features subject to change and availability not guaranteed.