Weight loss challenge with friends: spreadsheet, WhatsApp or app? 🥊
Most weight loss bets between friends run on a spreadsheet or a WhatsApp group. That works at first – and often fizzles out after a few weeks. Here is the honest comparison of what each option can do and when an app like FatFight is worth it.
⚖️ The comparison
Logging
📊 Spreadsheet: One person has to keep the list and chase everyone else.
💬 WhatsApp: Everyone posts their weight in the group – it gets lost between other messages.
🥊 FatFight: Everyone logs their own weight in the morning, the leaderboard updates instantly.
Fairness
📊 Spreadsheet / 💬 WhatsApp: Usually compared in kg – whoever starts heavier loses more more easily.
🥊 FatFight: Leaderboard in kg or in percent – so everyone has the same chance.
Privacy
📊 Spreadsheet / 💬 WhatsApp: Everyone sees everyone’s exact weight.
🥊 FatFight: You can keep your weight private – the others then only see your change, not your weight. Or you set the whole fight to “percent only”.
Sticking with it
📊 Spreadsheet / 💬 WhatsApp: No reminders, no pressure – skip one day and you often skip the next.
🥊 FatFight: Reminders on your phone, a crown 👑 for the leader and the K.O. rule: no weight for 3 days = K.O.
Honesty
📊 Spreadsheet / 💬 WhatsApp: You have to trust the others’ numbers.
🥊 FatFight: Optional photo of the scale as proof.
Cost
📊 Spreadsheet / 💬 WhatsApp: free.
🥊 FatFight: Free for two and alone against Puu. From the 3rd fighter there is a 3-day trial without payment details, then one group pass for everyone.
🤔 When is a list enough?
If you write in the group every day anyway, everyone is happy to share their weight openly and someone enjoys keeping the spreadsheet, a list is perfectly fine. An app is worth it as soon as there are more than two of you, you want a fair comparison in percent, or you notice the challenge fizzling out after a few weeks.
🏢 At the office? Also read: Weight loss bet with colleagues – keep it fair and voluntary.
🚀 Start in one minute
- 1. Open fatfight.de, enter your weight and name.
- 2. Choose “Against my friends”.
- 3. Send the invite link to your group – done. No app store needed.
❓ Frequently asked questions
How does a weight loss challenge with friends work?
Everyone logs their weight regularly, and a leaderboard shows who has lost the most since the start – fairest in percent. With FatFight everyone logs their own weight in the morning and the leaderboard updates instantly.
Is a weight loss bet fairer in kg or in percent?
In percent. Whoever starts heavier usually loses kilos faster. In percent, progress counts relative to your own starting weight.
Can I join without everyone seeing my weight?
Yes. With FatFight you can keep your weight private – the others then only see your change, not your weight. You can also set the whole fight to “percent only”.
How much does FatFight cost?
FatFight is free for two and alone against Puu. From the 3rd fighter there is a 3-day trial without payment details, then one person books the group pass for everyone.
FatFight is not nutritional or medical advice.