Ajax vs Harvest
A detailed comparison of Ajax and Harvest covering features, pricing, integrations, strengths, and weaknesses to help you choose the right tool.
Quick Overview
Ajax
AI-Powered Legal Timekeeping
Ajax is an AI-powered time tracking tool designed specifically for mid-sized law firms using Clio. It uses passive desktop and mobile screen monitoring to capture billable activities including emails, calls, chats, and calendar events, then generates polished billing narratives with automatic matter code assignment.
Harvest
Time Tracking and Invoicing
Harvest is one of the longest-running dedicated time tracking tools, offering one-click time tracking across web, desktop, and mobile with tightly integrated invoicing, expense tracking, and budget management. It serves over 70,000 companies and is known for its clean, intuitive interface.
Feature Comparison
Ajax Features
Passive desktop and mobile screen monitoring
AI-generated billing narratives
Automatic matter code assignment via semantic AI
Kanban-style review board producing 10-20 polished entries per day
Entry generation in approximately 30 seconds
Privacy controls with pause button and monthly data auto-deletion
Harvest Features
One-click time tracking across web, desktop, and mobile apps
Invoicing with automated payment reminders
Online payments via Stripe and PayPal
Project budget management with alerts
Expense tracking with receipt photo capture
Visual reports on budgets, time, and team capacity
Timesheet approvals and profitability reporting on Premium
Calendar integration pulling events into timesheets
Pricing Breakdown
Ajax
Contact sales
Custom pricing only. No publicly listed tiers. Sales-driven model with 14-day pilot programs. One firm reported $1,700/month in added billables per timekeeper.
Harvest
Free (solo), $10.80/seat/month
Free plan for solo users. Pro: $10.80/seat/month (annual). Premium: ~$14/seat/month. 30-day free trial. Volume discounts for 50+ seats.
Strengths & Weaknesses
Ajax
Strengths
Comprehensive activity capture across all work surfaces
Sophisticated semantic AI matching
High user satisfaction with 97% pilot-to-customer conversion
12% average billable hour increase (up to 42-61% reported)
SOC 2 Type I certified
Purpose-built for Clio integration
Weaknesses
Continuous screen monitoring raises privacy concerns
Very young and small company (8 employees, founded 2022)
No public pricing transparency
Limited independent reviews available
Narrow integration ecosystem focused primarily on Clio
No presence on G2 or Capterra review platforms
Harvest
Strengths
Extremely intuitive and easy to adopt with 4.6/5 ease-of-use rating
Clean lightweight interface that avoids overwhelming users
Strong invoicing workflow tightly integrated with time tracking
50+ native integrations available
Reliable budget tracking and capacity management
18 years in market indicating stability and maturity
Weaknesses
No automatic time tracking, relies entirely on manual start/stop
No idle detection, break tracking, or GPS tracking
Limited project management capabilities
Reporting can feel basic for advanced analytics needs
Mobile app has fewer features than desktop and web
Per-seat pricing becomes expensive at scale
Key features paywalled behind Premium tier
Long-term pricing stability concerns after recent increases
Integrations
Ajax (2 integrations)
Harvest (14 integrations)
Target Market
Ajax
Mid-sized law firms (20-150 timekeepers) using Clio
Harvest
Freelancers, small to medium businesses, agencies, design studios, consultancies, and professional services firms
The Verdict
Both Ajax and Harvest are solid time tracking tools, but they serve different needs.
Ajax (AI-Powered Legal Timekeeping) is best suited for mid-sized law firms (20-150 timekeepers) using clio. It starts at Contact sales and offers 6 key features.
Harvest (Time Tracking and Invoicing) is best suited for freelancers, small to medium businesses, agencies, design studios, consultancies, and professional services firms. It starts at Free (solo), $10.80/seat/month and offers 8 key features.
If neither tool quite fits your needs, consider comparing Ajax with TimeSentry or comparing Harvest with TimeSentry. TimeSentry offers AI-powered time capture from 20+ integrations, built-in invoicing, multi-company workflows, and dedicated onboarding support.
The TimeSentry Guarantee
Free 7-day trial with full access to every feature. No credit card required.
White-glove onboarding so your team is set up correctly from day one.
AI that learns your patterns and gets more accurate the longer you use it.
Cancel anytime with no contracts, no lock-in, and no hidden fees.
Dedicated support from real humans who respond within hours, not days.
Need something better than both?
TimeSentry combines the best of AI-powered time tracking with built-in invoicing, multi-company workflows, and 20+ integrations. Try it free and see for yourself.