ALTer vs Altvisor
| ALTer | Altvisor | |
|---|---|---|
| Free plan | Yes | Yes |
| Free trial | No | No |
| Paid from | Free | €12/mo |
| Open source | No | No |
| Platforms | extension | Web |
| Free plan | Yes | Yes |
| Publishing workflows | Yes | Yes |
| Bulk processing | — | Yes |
| API access | — | Yes |
| CMS plugins | — | Yes |
| Supported languages | — | 24 languages |
| Image formats | — | JPEG, PNG, WebP |
Both are listed in Best AI Alt Text Generators. On Samsung Mobile US Press, Altvisor scores higher on our published basis.