Books (114 programs)

Pros: Quick conversions. Specially designed tool. Preserves all important metadata. Multiple ebooks can be converted simultaneously.

Cons: May have conversion issues time and again. Technical support and updates not guaranteed. Only works with Windows. Batch conversions could take serious time.

Pros: Automatically downloads attached podcasts. Add or remove columns from viewing panel.

Cons: Not as powerful as some alternatives. Opens links in separate browser but not original post.

Pros: Ability to import limitless different email accounts. Configurable according to requirements.

Cons: Looks rather dated. Requires a lot of tweaking.

Cons: Only in English.