The Ultimate Google Sheet Toolkit VS SheetHacks by Polymer Search

SyncWith for Google Sheets - Data from any app into Google Sheets, reports & dashboards

Coefficient.io - Automatically Sync Google Sheets with your Business Systems. No-code reporting and analysis tool.

Google Sheets + MonkeyLearn - Power up your Google Sheets with text analysis

Sheetson - Instantly turn any Google Sheet into RESTful API

SheetsInterview - Evaluate Excel Skills 2.5x Faster - An online interviewing platform directed at Business Analysts, Investment Bankers, and any job using Excel

ActionDesk - Build powerful automations with just your spreadsheet skills