If you're looking for something to replace Vibe Shift, Felix is a good alternative. It's an AI assistant that integrates with Slack and helps you write with more skill, drafting messages in the correct tone and voice. You can customize the results with custom prompts and a tone selection. Felix comes in three tiers of pricing, including a free tier and a Premium tier for $25 per month. It could be useful for boosting teamwork and communication by ensuring your messages are empathetic and well written.
Another alternative worth checking out is Twain, an AI communication assistant for salespeople and sales teams. Twain drafts outbound messages that are customized to the tone and context of the recipient. It also offers features like real-time suggestions for improvement and performance tracking. That could be useful for salespeople and others trying to reach people with messages. Twain offers a free tier and a Pro tier for $0 per month billed annually, which is a good option if you're looking for an inexpensive option.
If you need to wrangle text at a higher level, Textok could be for you. The tool is designed to ensure consistency in corporate communications by creating its own custom text-writing rules. It'll analyze the tone of any given text and let you set your brand's voice across a variety of attributes. Textok offers a free basic plan and two paid plans, starting at $39 per month. That could be useful for content writers and companies that want to ensure their communications have the right tone.