Log anything in your day with one tap.
Water, coffee, vitamins, the dog's walk, the baby's feeds. Make a button for it, tap it, and see your whole day on one timeline.
Try it: tap to log now · hold to log at the cursor
Your buttons. Your day.
Pick an emoji, a name and a color. Tap to log it now, or hold to log it at the moment under the timeline cursor.
- Drag the timeline with momentum, pinch to zoom in on an hour
- Switch to Week and Month views to spot patterns
- Add a note to any log, like "Tired but ok"
Keep Personal, Baby and Dog apart in workspaces. Shared ones show who logged what.
Buttons that remind you.
Add a simple rule and CoLog nudges you with a notification, but only when you haven't logged it yet.
- "Once before 13:00", "every 2h", "max 3, 3h apart"
- Limit any rule to certain weekdays
- Notifications run on your phone, no account needed
No CoLog server. Seriously.
We never store your logs. They live on your phone and, if you sign in, sync through your own cloud.
- Start as a guest, sign in later to back up and sync
- Ads never use what you log
- Delete your account and data from inside the app
What will you log?
If it happens more than once, it can be a button. Here's how people use CoLog.
Medication & vitamins
Stop wondering "did I take it?". Log pills and vitamins with one tap, get reminded only when you missed a dose, and see your week at a glance.
See howDrinking water
Track how much water you drink with one tap per glass, get nudged when it’s been too long, and see your daily total.
See howBaby feeding & sleep
Log feeds, naps and diapers with one tap, share them with your partner, and always know when the baby last ate and who fed them.
See howDog & pet care
"Did anyone feed the dog?" Log walks, meals and meds with one tap, share them with the family, and see who did what.
See howCoffee & caffeine
Set a daily coffee limit and a minimum gap between cups. CoLog warns you before the fourth espresso, not after.
See howMood & symptoms
Log moods, headaches or symptoms the moment they happen, with an optional note, and spot patterns across the week and month.
See howFree. Or free of ads.
Every feature is in the free app. CoLog Plus just removes the ads.
Free
Supported by ads
- Unlimited buttons and logs
- Timeline with Day, Week and Month views
- Rules and reminders
- Backup to iCloud or Google Drive
- Shared workspaces
CoLog Plus
That's $1.25 a month. Save 37%
- Everything in Free
- No ads, anywhere
- Supports an independent app
Bought in the app through the App Store or Google Play. Renews automatically; cancel any time in your store subscription settings. Prices are in USD and may vary by country.
Questions, answered.
Do I need an account?
No. Continue as a guest and everything stays on your phone. Sign in with Apple or Google any time to back your logs up to your own iCloud or Google Drive and use them on another device.
Where is my data stored?
As a guest, only on your device. Signed in with Apple, in a hidden folder in your iCloud. Signed in with Google, in a hidden app folder in your Google Drive. CoLog has no server that stores your logs. See the Privacy Policy.
How do reminders work?
Add a rule to any button, like "Vitamin once before 13:00" or "Water every 2h". CoLog schedules notifications on your phone and only reminds you when the log is actually missing.
Can I log something I forgot earlier?
Yes. Drag the timeline to the right moment and hold the button. It's logged at the cursor's time.
Can I share a workspace with someone?
Yes. Create a workspace, say "Baby", and invite your partner. Every log shows who added it, so you both know when the last feed was.
What do the ads look like, and what does CoLog Plus change?
The free version shows ads from an ad network. Ads never use the contents of your logs. CoLog Plus removes all ads for $1.99 a month or $14.99 a year; every feature is the same in both.
How do I cancel CoLog Plus?
Plus is a store subscription. Cancel it in your Apple ID subscriptions (iPhone) or in Google Play → Payments & subscriptions (Android). You keep Plus until the end of the period you paid for.
How do I delete my data?
Go to Account → Delete account in the app. That erases your CoLog data from your iCloud or Google Drive and from your device. Guest data is removed when you uninstall the app. More options.
Start logging today.
Free on iPhone and Android. Your first button takes ten seconds.