Harvest
Toggl
TimeCamp
RescueTime
Time Doctor
Everhour
Pomodone
Futuramo Time Tracker
SYNCDATE
OneCal.io
Calensync
ChronoLink
SyncThemCalendars
Multical
CalendarBridge
SyncGene
SYNCDATE is a web application for live two-way Google Calendar synchronization. Connect multiple Google accounts, select which calendars to sync, choose direction (one-way or two-way), and SYNCDATE keeps events aligned automatically in the background.
Built for professionals juggling multiple Google calendars across work, personal, and side-project accounts.
Outlook support with cross-provider sync - coming soon.
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SYNCDATE's answer:
SYNCDATE treats sync as silent infrastructure โ it shows proof instead of making promises. Every sync run is logged with stats, every error comes with a deterministic fix step, and every sync can be cleanly reversed with optional event cleanup. Most calendar sync tools are black boxes. SYNCDATE exposes sync health, freshness, and latency so you can verify it's working in seconds, not just hope it is.
SYNCDATE's answer:
A generous free-forever tier (2 accounts, 2 calendars) covers the most common use case at zero cost โ competitors start at $4โ12/mo. Privacy is the default: synced events show as "busy" unless you opt in to detailed copying. And if you ever want to stop, the Clean Exit flow removes all SYNCDATE-created events from your calendars โ no orphaned copies left behind.
SYNCDATE's answer:
SYNCDATE's answer:
SYNCDATE was born from a real problem: juggling multiple Google accounts and constantly getting double-booked because calendars didn't talk to each other. Existing tools were either expensive for what they offered, opaque about what they were doing, or left orphaned events behind when you stopped using them. SYNCDATE was built to be the sync tool we wanted โ minimal, transparent, and safe to turn off.
SYNCDATE's answer:
Next.js (App Router) with TypeScript, PostgreSQL via Drizzle ORM, Redis with BullMQ for background job processing, Google Calendar API with webhook push notifications, and Stripe for billing. Deployed on a Hetzner server behind Cloudflare with a standalone Node.js worker for sync execution. Observability stack uses Grafana, Loki, Prometheus with PagerDuty for alerts.
Harvest has significantly improved our workflow. Its reporting make project management a breeze.
A nice simple interface and plenty of rich features really make this application essential.
Has a lot of features when compared to it's competitors out there.
Based on our record, Harvest seems to be more popular. It has been mentiond 14 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
If thatโs not enough, Iโve had good experience with http://getharvest.com (and accompanying tools from them). Source: about 3 years ago
Https://getharvest.com/ : time tracker for contract work. Source: about 3 years ago
I use getharvest.com to track hourly and convert them to invoice. The only thing I don't like is that I have to add the task in the web dashboard rather than entering directly in the desktop app. There is 'note' field, but it won't show up in the invoice detail, so it is useless for me. Source: about 3 years ago
I think for your business the best way to go is with a premade app for time logs and invoicing. My wife uses Harvest for her business: https://getharvest.com. Source: over 3 years ago
I use Harvestto invoice and track time. You can also use QuickBooks. Source: over 3 years ago
Toggl - Toggl is an online time tracking tool. It features 1-click time tracking and helps you see where your time goes. Free and paid versions are available.
OneCal.io - Sync Outlook and Google Calendars in real-time, share booking links, and view all your calendars in one view.
TimeCamp - Simple and robust time tracking app to help you stay on the same page with your team while working from home.
Calensync - Synchronize your Google, Outlook, and iCalendars instantly, and create scheduling links to easily book events based on your availability
RescueTime - Time management software that shows you how you spend your time & provides tools to help you be more productive.
ChronoLink - Flexibly synchronize events between different calendars. Select and transform events according to your rules. Supports Google, Microsoft (Outlook.com / Exchange Online), Exchange Server, iCalendar/ICS and other systems.