The best alternatives to chipin are Wantt, Evabot for Slack, and Vidzy. If these 3 options don't work for you, we've listed a few more alternatives below.
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Hurree— The smarter, simpler way to analyze your data
Wantt was built to try and take the admin out of gifting for birthdays, Christmas etc. Create a list, add items and share it with anyone you like. List viewers can mark off what they would like to get you, without you seeing anything change, keeping it a surprise for you! Other viewers can see what has already been bought so there's no duplicates