Lastslate
8.0#20 in writing appsFrom $10 a monthFree planmacOSWindows
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| Fact | Lastslate | Substack |
|---|---|---|
| Company legal name | The application and privacy policy identify Uniqlabs LLC as the publisher and company. | Crunchbase lists the legal name as Substack Inc. |
| Free plan | Yes | Yes |
| Privacy | Scripts are stored locally by default, cloud backup is opt-in and encrypted in transit and at rest, and the company says it does not use scripts, prompts, or completions to train AI models. | Substack's privacy policy says it endeavors to protect personal information but cannot guarantee complete security. |
Lastslate suits screenplay writers who want screenplay-specific formatting, planning tools, and optional collaboration on Mac or Windows. Writers considering AI features should note that relevant script context is sent to the AI provider when an action is invoked.
Substack suits writers, journalists, podcasters, video creators, experts, educators, and media companies building a direct subscriber audience. It is useful for creators who want multiple media formats, audience discovery, segmentation, email automation, and paid subscription options.