Keep My Friends is described as 'allows you to track when you last spoke to each of your friends, and set an interval of the maximum number of days you want to allow between times that you speak to them'. There are more than 50 alternatives to Keep My Friends, not only websites but also apps for a variety of platforms, including Windows, iPhone, Android and Mac. The best alternative is EteSync. It's not free, so if you're looking for a free alternative, you could try EspoCRM or Mautic. Other great sites and apps similar to Keep My Friends are Monica (Freemium, Open Source), Zoho CRM (Freemium), CiviCRM (Free, Open Source) and SuiteCRM (Free, Open Source).
Mautic is marketing automation software (email, social, & more). Install on your own website or create a free hosted account. The simple 3-step setup process takes less than 5 minutes and you'll be ready to reclaim control of your marketing.
SuiteCRM provides an enterprise-grade Customer Relationship Management (CRM) application to a global community of users and software developers. It is a robust and credible alternative to Salesforce, Microsoft and the major CRM vendors.
Pipedrive is a powerful sales pipeline management tool. It organizes your leads in a way you'll always have a great overview of sales, and important deals won't get dropped. Pipedrive is mostly used by small demanding teams.