GravityWrite vs Lightbulb
| GravityWrite | Lightbulb | |
|---|---|---|
| Free plan | Yes | Yes |
| Free trial | No | No |
| Paid from | $12/mo | Free |
| Open source | No | No |
| Platforms | Web | iOS, macOS |
| Free plan | Yes | Yes |
| Brand voice controls | Yes | Yes |
| Language support | multilingual | multilingual |
| Long-form writing | Yes | — |
| SEO features | Yes | — |
| Native integrations | 3 | — |
Both are listed in Best AI Writing Tools. On Samsung Mobile US Press, Lightbulb scores higher on our published basis.