Here are a few alternatives to FileInvite. 
Adobe Send and Track, Dropbox File Request, Citrix Sharefile and Docusign.
See how they compare features wise below. 
 
 
 
Sync to cloud storage
Sync your files to your preferred cloud storage
Share files with clients
Send a link to share or receive a file
Manage contacts
Upload, sync and manage contacts
eSign / digital signature
Get contracts signed online
Chat
Message clients within the system in realtime
Live forms
Editable documents for completing forms in context
Templated requests
Save common lists of requested files for repeat use with customers.
Custom domain
Use your own URL or sub domain for client portals
Automated follow up
Set a due date and send automated email, SMS or Text messages to your clients requesting the documents you need.
Approve and Reject files
A dashboard and workflow for each customer. See documents requested, open, close, approve, reject, and request replacements.
Multiple recipients requests
Add a secondary applicant, or second recipient to provide a subset of the information or documents requested
Multi sign digital signatures
Have two parties sign a contract or document
Signature sequencing
Have contracts signed in order by certain parties
Tax file number redaction
Automatically remove sensitive tax numbers from documents
Intuitive secure client portal
A simple to use client portal that clients can access from any device and upload file or pictures of physical documents
Custom branding
Add your logo, company name and branding to cilent portals and emails.
Auto PDF
Uploaded photos and documents autoamtically rotate and convert to PDF. Collate all files to form a downloadable PDF summary.
Audit trail
History of all uploads, files received and communications with clients. Great for audit trials.
Multiple users and permission levels
Give multiple team members access to certain features and funtionality
API available
Connect and trigger actions using your CRM, email provider and many other tools

FileInvite

FileInvite is an automated platform for collecting information, files and signed documents form your customers. With a secure intuitive client portal, providing information is a delight with FileInvite.

Adobe

Adobe Send & Track is an Adobe Document Cloud service that lets you send files as links, track the files that you send to specific people, and get confirmation receipts when others view your file. You can use it to track what you've sent, rather than relying on your email as a storage system.

Dropbox

Dropbox File Request allows you to share documents with colleagues and clients online. Rather than emailing documents around a group, documents get uploaded to a Dropbox folder and can be downloaded again by whoever has been given access to the folder

Citrix

Citrix Sharefile is a secure content collaboration, file sharing and sync solution. It supports document-centric tasks and workflow needs and offers client portals for sharing documents.

Docusign

Docusign pioneered the development of e-signature technology that helped digitize the entire agreement process. Signing a contract or agreement can be a key part of the process. Docusign helps you prepare agreements to sign, then get them signed on almost any device.