Day planner · living aquarium

Your to‑do list is a fish tank.

Say what you need to do. Finish it, and your fish eat, grow and have babies. Go Reef Keeper and part of it plants real mangroves.

See how it works What we fund

On iPhone · coming soon to the App Store

How it works

Plan it. Do it. Watch it grow.

“Dentist Friday at 3”

Say it

Talk or type like a normal person. TaskTank works out the time, the alarm and the steps. Works with “Hey Siri, TaskTank”.

14:52

Do it

Timers that stay on your lock screen, alarms that really ring, and a day planner you drag around with one thumb.

Grow it

Every finished task earns coins and feeds your fish. Keep it up and they grow, pair up and fill your tank.

Inside the app

Everything TaskTank does, and how.

Five tabs along the bottom: Menu, Tank, Tasks, Plan and Create. Here's what each one is for.

“Gym tomorrow at 6 for an hour, and call Mom every Sunday”
↓
GymTomorrow6:00 AM1 hr timer⏰ alarm
Call MomEvery Sunday⏰ alarm
Create tab

Say it the way you'd say it to a friend

  • Tap Create and just talk. It's already listening. Your words appear big on screen as you speak, colour-coded as it understands them.
  • Several tasks in one breath. “Gym at 6 and call Mom every Sunday” becomes two tasks.
  • Times, repeats, steps and notes. “…with steps sweep, mop” adds a checklist. “Every weekday” makes a routine.
  • Change your mind out loud. “Move it to 7”, “cancel that” or “take it back”, and it answers you.
  • It picks the category for you. Gym gets the exercise icon, groceries get the shopping one.
9:41
“Hey Siri, TaskTank”
What do you need to do?
“Take out the trash at 8”
✓ Added: Take out the trash · 8:00 PM
🎙️ Siri & lock screen

Add tasks without opening the app

  • “Hey Siri, TaskTank.” Then say your task. It's added with its time and alarm, and Siri reads it back.
  • From the lock screen. Tap the button, say what you need, and put the phone down.
  • Fix it by voice. Didn't catch it right? Say “change it to 9” or “cancel that” and it answers you.
  • Free accounts get 5 voice requests a day. Reef Keepers get unlimited.
Morning
🏃Run7:00 · 30m
💊Vitamins7:30
🪴Water plants✓ done
Afternoon
💻Deep work1:00 · 2h
📞Call Mom5:30
Tasks tab

Your day at a glance

  • Today, in order. Tasks are tiles grouped into morning, afternoon and evening. Longer tasks get bigger tiles.
  • Tap to finish. You get a little celebration, coins, and your fish get fed.
  • Routines live on a shelf. Daily things like vitamins sit together. Hold one to change its time, or drag to reorder.
  • Steps inside tasks. Tick off parts of a bigger job one by one.
  • Oops? Undo. Finished something by mistake? Take it back.
8 AM1012 PM246
🏃 Run
💻 Deep work
📞 Call Mom
👆
Anytime
🛒 Groceries
Plan tab

Drag your day into shape

  • A timeline of your day. Every task sits at its time, as tall as it is long.
  • Drag to move, pull to stretch. Move a task to a new time, or pull its edge to make it longer or shorter.
  • Anytime tasks wait in a pool. Drag one into the morning, afternoon or evening when you're ready.
  • Zoom out to see the whole day at once and find any task.
2:14
Deep work14:52
+5 minCompleteCancel
🛡️TikTok is blockeduntil your timer ends
⏱ Timers & alarms

Timers that follow you, alarms that ring

  • A live timer on your lock screen and in the Dynamic Island, with buttons to complete it, cancel it or add more time.
  • Real alarms. They ring like the Clock app, even on silent. Pick from a big library of sounds, per category.
  • Focus blocking. While a timer runs, the apps you choose are blocked. Say “block TikTok” to add one.
  • Pomodoro built in. 25 minutes on, 5 off, and a long break after the fourth.
  • Home screen widgets show what's next without opening the app.
FeedScrubSiphon
Tank tab

A real little aquarium in your pocket

  • 500+ kinds of fish, each drawn by hand and swimming its own way. Bottom dwellers stay low, surface fish stay high.
  • Look after it. Drop food in, scrub the glass, clean the gravel with a siphon and change the water.
  • Make it yours. Painted backdrops that change from day to night, sand, gravel or moss floors, and animated ornaments.
  • Some ornaments do things. A moss tree helps baby fish grow faster. A nursery cave keeps them safe.
Hold to reel
🏮 Market🎣 Pier🪙 Sell
Harbour

Spend your coins at the harbour

  • Coins come from finishing tasks. The more you get done, the more you earn.
  • Shop the market for food, cures, ornaments, floors and backdrops.
  • Fish off the pier. Cast, wait for a nibble, strike, and hold to reel in a new fish for your tank.
  • Sell fish you don't need at the counter for more coins.
❤
M
T
W
T
F
S
S
💞 Grow & progress

Keep going and your tank grows with you

  • Fed fish grow. Finishing tasks keeps them fed and healthy.
  • Pairs have babies. Two similar fish fall for each other, dance, and fill the tank with tiny fry.
  • See your week. Stats show how much you did each day, week, month and year, and how balanced your life is.
  • Do it together. Add friends, share tasks and climb the ranks.
🌙 Dark mode at night🔁 Routines📝 Notes on tasks☁️ Syncs with your Apple or Google account🔔 Per-category alarm sounds📱 Widgets
The real ocean

Pick your piece of the ocean.

When you join, you choose one cause. Your money goes there, and you see exactly what it did.

A bottle floating in the sea
Clean the Ocean

Pull plastic out of the sea

Bottles, bags and lost fishing nets, collected before they break down into the water.

≈ 8 kg for every $10
A young coral
Regrow Coral

Bring a reef back to life

Divers grow coral in nurseries and plant it on damaged reefs, so fish have a home again.

1 coral for every $30–40
A mangrove tree with roots in the water
Plant Mangroves

Plant the ocean's nurseries

Baby fish hide in mangrove roots. The trees protect coasts from storms and lock away carbon.

≈ 4 trees for every $10

What we could do together

Using the $10 from each yearly plan and our partners' prices: about $1.20 per kg of plastic, $30–40 a coral, $2–3 a mangrove. The real numbers go on the Impact page every month.

4,000
mangrove trees planted
Reef Keeper

The plan that pays the ocean back.

TaskTank is free. Reef Keeper unlocks the extras, and a big part of the price goes straight to your cause.

Yearly
$21.99
per year
🌱$10 to your cause, every year
Best for the reef
Lifetime
$39.99
pay once
🌳$20 to your cause
FreeKeeper
Voice assistant & Siri
5 a dayUnlimited
Saltwater fish
—✓
Backdrops
Full priceHalf price
Alarm sounds
Starter setAll of them
Badge on your rank
—✓
Impact certificate
—✓
Impact certificate
Your name here
planted
4
mangrove trees as a TaskTank Reef Keeper
tasktank.app/impactReef
Keeper2026

Your certificate shows what your share did. It's proof of impact, not a tax receipt.

Medals

Give more, rank higher.

Want to give more? Donate on this site and 100% goes to the charity. It adds up on your profile.

$10
Bronze
$50
Silver
$100
Gold
$250
Coral
$1k
Whale

Get things done. Help the ocean.

TaskTank is coming to iPhone. The ocean's waiting.

Donate now See our impact