Comparison

ADHD Focus vs ONE

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

Head to head
About

ADHD Focus

Features
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Most to-do apps solve the wrong problem. They help you collect more tasks, not finish them. ThatOneThing does one thing differently: every day, you pick a single task that matters, and you finish it before you're allowed to add another. That's the whole idea. No backlog staring back at you. No twelve half-finished projects competing for your attention. Just today's one thing, front and center, until it's done. It works especially well if you've got ADHD, or you just find long lists overwhelming no matter what. Built to keep you coming back Finishing your one thing builds a streak, and streaks are protected: miss a day here and there and a shield covers it, so one bad day doesn't wipe out three weeks of work. Every completion earns XP, XP adds up to levels, and leveling up reveals more of a 34-badge collection, from your first finish to a full year of showing up. See the proof Your Done list keeps a running record of everything you've actually finished, not just what you meant to do. Watch your all-time count climb. Look back at last Tuesday and see exactly what got done and when. Make it yours (Premium) Pick an accent color, choose from several app icons, and set a custom background or font for your focus card. Premium also adds multiple active tasks for the days you genuinely need more than one, your full stats history, and streak shields. Everything else you'd expect A home screen widget shows today's one thing at a glance. Reminders nudge you at the time you choose. Dark mode, VoiceOver support, and 34 languages are built in, and your data syncs across devices with iCloud. If you're tired of a list that never finishes itself, start with one thing today. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

ONE

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Not another to-do list. ONE Focus is a single-task focus timer for a deeper life. You commit to one thing at a timeβ€”nothing else on screen, nothing competing for your attention. WHY ONE FOCUS? β€’ One thing only β€” no lists, no tabs, no clutter β€’ Start in one line β€” type a title, press return, begin β€’ Gentle accountability β€” a progress check-in every 45 minutes β€’ Five-step progress β€” 0, 25, 50, 75, or 100%, with an optional note β€’ Quiet by design β€” no streak anxiety, no gamification, no noise β€’ Night quiet hours β€” no notifications between 22:00 and 09:00 β€’ Minimal history β€” see what you've finished, nothing more HOW IT WORKS 1. Enter one thing and start 2. Stay with it β€” elapsed time keeps you honest 3. Respond to check-ins when prompted (or update progress anytime) 4. Mark complete when you're done 5. Move on to the next moment DESIGNED TO FEEL CALM Editorial Noir typography, generous whitespace, and champagne-gold accents. Dark-first. No feature bloat. No account required. Everything stays on your device. Built for focus, study, deep work, and everyday presenceβ€”reading to your child, cooking a meal, taking a walk, creating something meaningful, or simply being here. Download. Pick one thing. Live it fully.

Screenshots

ADHD Focus4 screens
ONE3 screens

Verdict

The call

The clearest difference is in-app purchases: ONE at none against ADHD Focus's 2. ADHD Focus's advantage is update cadence (every 3 days vs every 2 weeks) and device support (3 vs 1). On price, ads and iOS requirement there is nothing between them.

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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. ADHD Focus sells 2 in-app purchases, starting at $1.99 per 7 days. ONE asks for nothing beyond the download.

UpkeepUpdate frequency

ADHD Focus ships an update every 3 days, ONE every 2 weeks. The most recent releases landed on October 1, 2026 and October 5, 2026 respectively.

Scorecard3 real differences Β· 3 level
ADHD Focus versus ONE: the parameters behind the verdict, then further details
ParameterADHD FocusONE
PriceFreeFree
Update frequencyEvery 3 days β€” betterEvery 2 weeks
AdsNoNo
In-app purchasesYesNo β€” better
DevicesiPhone, iPad, Mac β€” betteriPhone
Requires iOS17.017.0
Further details β€” not scored
Size32 MB2 MB
Age rating4+4+
DeveloperAppgineering GbRιͺ‹ι£ž ζ­¦

In-app purchases

2 purchases

ADHD Focus

Subscriptions2
  • ThatOneThing Premium (1 week)3 Days trial$1.997 Days
  • ThatOneThing Premium (1 year)$3.991 Year
None

ONE

No in-app purchases

Questions

Is ADHD Focus free?
ADHD Focus is free to download, with in-app purchases available.
Is ONE free?
ONE is free to download, with no in-app purchases.
Do ADHD Focus or ONE have ads?
Neither ADHD Focus nor ONE shows ads.
Which is updated more often, ADHD Focus or ONE?
ADHD Focus ships an update every 3 days, and ONE every 2 weeks. Most recently, ADHD Focus was updated on October 1, 2026 and ONE on October 5, 2026.

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