Training alone is easy to quit. Training together sticks.
捕手Spotter is a workout log built for people who train together. Become partners with your significant other, a friend, or your training buddy, and you can log workouts, meals, and weight for each other. One entry, both of you logged.
[ Partner Logging ]
• Invite someone from your friends list; it takes effect once they accept
• Before each entry, choose who it's for: just you, just your partner, or both
• Swipe left or right on the Training and Weight tabs to jump to your partner's page and log for them
• Your partner can edit at the same time; you both see the same up-to-date data
• Unlink anytime; each of you keeps your own records
[ Activity Feed ]
• Open the app and see what your friends trained: exercises, weights, sets
• Like and comment to cheer each other on
• Add friends with a friend code, QR code, or shared link
[ Effortless Logging ]
• Adjust weight and reps with + / − and tap once to log a set
• The next set starts from your last numbers, no retyping
• Built-in rest timer: ±15 seconds, skip, and a notification when time's up, also on the Lock Screen and Dynamic Island
• Supersets, drop sets, pause sets and more, plus cardio
• Built-in push/pull/legs, upper/lower, and full-body programs, or plan your own week
[ Weight & Nutrition ]
• Log weight daily; scroll the trend chart sideways to see your 7-day average and weekly change
• Log meals with a photo or by hand: protein, carbs, fat, and calories against your daily targets
• Start typing a food name to search past entries and fill everything in with one tap
• You can log weight and meals for your partner too
• Diary and photo compare: pick two diary photos side by side to see how your body changed
[ AI Assist ]
• AI form check: film a squat, bench, or deadlift and get specific tips
• AI food recognition: snap a meal to estimate calories and macros
• AI workout recap: estimated calories burned, plus convenience-store snack ideas based on your training (Taiwan)
• Videos stay on your phone: form check sends only 30 key frames
[ Never Lose Your Data ]
• Sign in with Apple or Google and your workouts, weight, and meals back up automatically, even if you switch phones
[ Who It's For ]
• You have a regular training partner and want to run the same program
• You coach someone, or someone coaches you, and want to log for each other
• You train alone and need friends keeping you honest
• You want workouts, food, and weight in one app
[ Spotter Pro ]
Free to download. The free tier lets you log workouts, add partners, track weight and meals, and write diary entries, with a daily free AI allowance: 1 form check, 3 food recognitions, 1 workout recap.
Spotter Pro raises your daily AI limits and unlocks advanced features:
• Up to 30 AI form checks per day
• Up to 20 AI food recognitions per day
• Up to 3 AI workout recaps per day
• Advanced stats with your full history (free tier: last 30 days)
• Multiple training plans (free tier: 1)
Plans (prices and intro offers vary by region; the final amount is shown on the subscription screen at checkout):
• Monthly subscription with a discounted first month
• Yearly subscription with a 7-day free trial
Payment will be charged to your Apple Account at purchase confirmation. Subscription auto-renews unless canceled at least 24 hours before the end of the current period. Manage or cancel anytime in App Store → Account → Subscriptions.
• Privacy Policy: https://spotter-partner.vercel.app/en/privacy
• Terms of Use: https://spotter-partner.vercel.app/en/terms
[ Contact ]
• Feedback: Settings → Feedback in the app
• Email: littleching26@gmail.com
Built by an engineer who trains every day. I read every message.
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