Comparison

The Stack vs Do3

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

The Stack

This app offers a straightforward approach to managing tasks and capturing thoughts. It utilizes a single list of text-based notes organized with hashtags for easy retrieval and organization.

Highlights
  • Simple text-based notes
  • Hashtag organization
  • Easy idea capture
  • To-do list management
  • Streamlined interface
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The Stack is a different take on To-Do List management. It favours simplicity, and encourages easy capture of your thoughts ("notes to self") as you have them. It uses a single list of simple text-based notes, organised using #hashtags.

About

Do3

Features
Read full description

TOO MUCH TO DO? START WITH THREE. When everything feels urgent, a giant to-do list just makes it worse. Do3 quiets the noise by showing you only three tasks at a time. Finish your three, then choose: do three more, or call it a good day. That's the whole idea. Small rounds instead of one endless list. Momentum instead of overwhelm. HOW IT WORKS Do3 reveals one task at a time, so you're never staring at everything at once. Do it and tick it off, or skip it if now isn't the moment. You get a daily skip allowance, so you can nudge past the odd task without dodging your whole day. Clear your three and you get a quick well done, then it's your call: another round, or stop for the day. You're finished when you decide you are. FOR BUSY BRAINS If you have ADHD, a head full of open tabs, or simply too much on, Do3 is built for you. No guilt-trip lists, no wall of red. Just the next three things, one at a time, so starting feels possible again. BRING YOUR TASKS WITH YOU Already using something else? Switching is easy: • Import from other to-do apps with a CSV file • Import straight from Apple Reminders, it copies them across and leaves Reminders untouched • Export any time, free, as a CSV or a full backup, so your tasks are never locked in EVERYTHING ELSE YOU NEED • Quick add that understands you: type "pay rent tomorrow 2pm high priority" and Do3 fills in the date, time and priority • Brain Dump to empty your head fast, then sort later • Focus tags like Quick wins, Deep work and Low energy, to match tasks to the energy you have • Time blocks and a Calendar to shape your day without rigid scheduling • Repeating tasks with real control: daily, weekly, monthly, "the last Friday", or repeat until done • An All Tasks view with search, filters and sorting whenever you want the bigger picture • Apple Watch app and Home Screen widgets that show your current round • A Deleted list and an Undo, so nothing vanishes by accident WORKS EVERYWHERE, PRIVATELY Do3 syncs across your iPhone, iPad and Mac through your own iCloud, automatically. No account to create, no password to remember. There's no server, no tracking and no analytics, so your tasks stay yours. Nobody, including us, can see your list. SIMPLE PRICING Use Do3 free for your first 7 days. After that, a one-time purchase unlocks it for good, with no subscription, ever. One purchase covers your iPhone, iPad and Mac. And exporting your tasks is always free, so you are never locked in. Start with three. See how much lighter that feels.

Screenshots

The Stack4 screens
Do34 screens

Verdict

The call

The clearest difference is iOS requirement: Do3 at 17.0 against The Stack's 26.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. The Stack sells 3 one-off in-app purchases and Do3 sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

The Stack ships an update every 5 weeks, Do3 every 6 weeks. The most recent releases landed on October 7, 2026 and October 8, 2026 respectively.

Scorecard1 real difference · 8 level
The Stack versus Do3: the parameters behind the verdict, then further details
ParameterThe StackDo3
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 5 weeks — betterEvery 6 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, Mac, Apple WatchiPhone, iPad, Mac, Apple Watch
Requires iOS26.017.0 — better
Further details — not scored
Size12 MB10 MB
Age rating4+4+
DeveloperElegant Chaos LimitedALLAN KEN MORROW

In-app purchases

3 purchases

The Stack

One-time3
  • Fresh Straw$0.99
  • A Nice Juicy Carrot$2.99
  • Deluxe Hamster Wheel$9.99
1 purchases

Do3

One-time1
  • Do3 Lifetime Unlock$19.99

Questions

Is The Stack free?
The Stack is free to download, with in-app purchases available.
Is Do3 free?
Do3 is free to download, with in-app purchases available.
Do The Stack or Do3 have ads?
Neither The Stack nor Do3 shows ads.
Which is updated more often, The Stack or Do3?
The Stack ships an update every 5 weeks, and Do3 every 6 weeks. Most recently, The Stack was updated on October 7, 2026 and Do3 on October 8, 2026.

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