Alt Text Pro vs ALTer
| Alt Text Pro | ALTer | |
|---|---|---|
| Free plan | No | Yes |
| Free trial | No | No |
| Paid from | — | Free |
| Open source | No | No |
| Platforms | Web | extension |
| Free plan | Yes | Yes |
| Paid from | 4 /mo | — |
| Bulk processing | Yes | — |
| API access | Yes | — |
| CMS plugins | Yes | — |
| Image formats | JPEG, PNG, GIF, WebP | — |
| Publishing workflows | Yes | Yes |
Both are listed in Best AI Alt Text Generators. On Samsung Mobile US Press, Alt Text Pro scores higher on our published basis.