Comparison

One Great Thing vs ADHD Tool

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

Head to head
About

One Great Thing

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One small action can make a difference. A quick task, a personal intention, or the one thing you just have to get done today. One Great Thing allows you to quickly capture this each day, and provides a satisfying visual to complete it. You can use the provided widgets to help keep your item front and center throughout the day.

About

ADHD Tool

This minimalist task tracker helps you focus on a single priority at a time. It encourages completing one task before moving to the next, moving away from overwhelming to-do lists. Features include Live Activities, widgets, and an Apple Watch app for on-the-go management.

Highlights
  • Single task focus
  • Live Activities integration
  • Widget support
  • Apple Watch app
  • Minimalist interface
Features
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Do This is a to-do app that holds exactly one task. Long lists are where ADHD brains get stuck. Every item is another decision about what to do first, and the list ends up being the thing you work on. Do This skips all that. Type the one thing you're doing right now, do it, tap done, then type the next one. • One task at a time. No lists, no due dates, no setup. • Always in view: on your Lock Screen as a Live Activity, in the Dynamic Island, and in home screen widgets. • Finish without opening the app. Tap done from the Lock Screen, a widget or your Apple Watch. • Optional reminders that nudge you until the task is done. • Quietly keeps time, so you can see how long you've been at it. • Undo, in case you tap done by accident. • Siri and Shortcuts support. One-time purchase. No subscription, no ads, no account.

Screenshots

One Great Thing4 screens
ADHD Tool4 screens

Verdict

The call

One Great Thing and ADHD Tool are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

One Great Thing ships an update every 8 months, ADHD Tool every 7 months. The most recent releases landed on November 4, 2026 and November 8, 2026 respectively.

ScorecardNo meaningful differences
One Great Thing versus ADHD Tool: the parameters behind the verdict, then further details
ParameterOne Great ThingADHD Tool
PriceFreeFree
Rating—5.0 (6 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—6 — better
Update frequencyEvery 8 monthsEvery 7 months — better
AdsNoNo
In-app purchasesNoNo
Monetization—Paid
DevicesiPhoneiPhone, Apple Watch — better
Requires iOS18.017.0 — better
Further details — not scored
Size1 MB3 MB
Age rating4+4+
DeveloperFinite Fractal StudiosEdward Prokopik

In-app purchases

None

One Great Thing

No in-app purchases

None

ADHD Tool

No in-app purchases

Questions

Is One Great Thing free?
One Great Thing is free to download, with no in-app purchases.
Is ADHD Tool free?
ADHD Tool is free to download, with no in-app purchases.
Do One Great Thing or ADHD Tool have ads?
Neither One Great Thing nor ADHD Tool shows ads.
Which is updated more often, One Great Thing or ADHD Tool?
One Great Thing ships an update every 8 months, and ADHD Tool every 7 months. Most recently, One Great Thing was updated on November 4, 2026 and ADHD Tool on November 8, 2026.

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