Push Operations's answer
Based on our record, Sling seems to be more popular. It has been mentiond 7 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.
Using Sling (https://getsling.com/) for a distributed CS team. It's working pretty well. We're spread across six timezones, been using it for five months. Free version's done well enough for us. Source: almost 2 years ago
If you want to try a free product, Sling scheduling app is good. You can google the reviews to see if that match your needs. Source: about 2 years ago
But I think you might want to look at some more dedicated scheduling software like Sling. Source: over 2 years ago
I've used Sling with my guard team. It's primarily a scheduling app, but it also has messaging functions. Source: over 2 years ago
I suggest https://getsling.com it's not open source but the free version is really good. Take a shot at it. GL. Source: almost 3 years ago
Welcome Kit - Tool to build an attractive career site and manage candidates relationships.
When I Work - When I Work is an employee scheduling and communication app using the web, mobile apps, text messaging, social media, and email.
ProSky - Our platform is perfect for companies looking to hire and retain the best talent. Recruit the perfect fit for your company through performance-based projects and challenges.
Deputy - Deputy is a software for employee scheduling, time and attendance and communication management.
RChilli - RChilli is the most trusted partner for Resume Parsing, Matching, and Data enrichment for global recruiting platforms.
ResourceGuru - The fast, simple way to schedule people, equipment, and other resources online.