What's the most cost-effective way to run deliverable review tracking using a mobile-friendly review portal?

The most cost-effective approach is usually to use a low-code web app + a lightweight database + automated notifications, rather than buying a full custom review platform.

Best low-cost setup

1. Mobile-friendly front end

• Use Airtable Interfaces, Glide, Softr, or Google AppSheet
• These are easy to use on phones and let reviewers view deliverables, comment, approve/reject, and update statuses

2. Shared data store

• Use Airtable, Google Sheets, or Microsoft Lists
• Keeps the source of truth simple and cheap

3. Automation

• Use email/Slack notifications, status reminders, and escalation rules with:
  • Airtable Automations
  • Zapier
  • Make
  • Power Automate

Most cost-effective options by scenario

• Small team / simple workflow:
  Google Sheets + AppSheet
  Very affordable, quick to deploy, mobile-friendly

• Need a nicer review portal with approvals/comments:
  Airtable + Airtable Interface
  Strong balance of usability and cost

• Already in Microsoft 365:
  Microsoft Lists + Power Apps/Power Automate
  Often cheapest if licenses already exist

• Fastest setup with minimal admin:
  Glide + Google Sheets/Airtable
  Good mobile experience, but can cost more as usage grows

Key features to include

To keep it cost-effective, make sure the portal supports:

• Deliverable upload/link
• Reviewer assignment
• Due dates
• Statuses like Pending / In Review / Changes Requested / Approved
• Comments/feedback
• Audit trail
• Mobile access
• Automated reminders

Cost-saving tips

• Avoid custom development unless you have very complex workflows
• Start with one workflow and expand later
• Use a single database instead of multiple tools
• Limit file storage in the portal; store large files in Drive/OneDrive/S3 and link them
• Use role-based access to reduce licensing needs
• Automate only the highest-value reminders/escalations

My recommendation

If you want the best mix of low cost, mobile usability, and speed, start with:

Airtable + Airtable Interface + Automations

If you want the absolute cheapest and already use Google Workspace:

Google Sheets + AppSheet

If you want, I can also give you:

1. a comparison table of tools and monthly costs, or
2. a sample workflow/design for a deliverable review portal.