ADHD Focus vs This One Thing
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
ADHD Focus
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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/
This One Thing
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The productivity problem you've never heard of: Every todo app shows you everything. Your brain sees the list and freezes. Psychologists call it "choice paralysis." We call it Tuesday. This One Thing: Single Task; ADHD Focus Todo Productivity solves the opposite problem: not how to organize your tasks, but how to hide them. Here's how it works: Add unlimited tasks (your brain needs to capture everything) See exactly ONE task at a time (your eyes need to focus on THIS ONE THING) Complete it to reveal the next (no peeking, no planning, no paralysis) Skip if you must (but it goes to the back of the line) What you won't find here: Priority levels (everything's a priority, which means nothing is) Due dates (artificial urgency is still anxiety) Categories (organizing is procrastinating with extra steps) Collaboration (focus is a solo sport) Gamification (you're not a rat in a maze) What you will find: One task. One screen. One decision. A timer that shows focus time (what you measure, you value) Statistics that matter (streak days, completion count) Design that looks expensive (because restraint is luxury) The behavioral economics: Rory Sutherland, vice chairman of Ogilvy, says the best solutions solve the problem backwards. Instead of "how do I get more done?" ask "what stops me from starting?" The answer: seeing everything stops you from doing anything. THIS ONE THING makes the limitation into the feature. You can't see task #2 until task #1 is done. Not because we're mean, but because your brain works better that way. Who this is for: People with 50+ tasks who complete zero Anyone who reorganizes their todo list instead of doing it Humans who overthink, overplan, and underexecute Those who know that "just start" works but can't make themselves start Who this isn't for: People who need to see the big picture (this app deliberately hides it) Teams (there's no sharing, no sync, no collaboration) Planners (there's no calendar, no projects, no someday/maybe) This app makes your life harder in exactly one way: you can't avoid the next task by looking at other tasks. No escaping into "planning." No comfort of "I'll do that other thing first." Just you and THIS. Every time. Most apps try to make work easier. This one makes avoidance harder. That's worth $4.99. Privacy: Your tasks live on your device. No account, no cloud, no tracking. We don't know what you're doing, and we don't want to. RESOURCES: โข Privacy Policy: https://pragmathema.com/#this โข Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is price: ADHD Focus at Free against This One Thing's $4.99. ADHD Focus also leads on update cadence (every 3 days vs every 6 weeks) and iOS requirement (17.0 vs 26.0). This One Thing's advantage is in-app purchases (none vs 2). On ads and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
ADHD Focus is free to download; This One Thing costs $4.99 up front. ADHD Focus sells 2 in-app purchases, starting at $1.99 per 7 days. This One Thing asks for nothing beyond the download.
ADHD Focus ships an update every 3 days, This One Thing every 6 weeks. The most recent releases landed on October 25, 2026 and October 30, 2026 respectively.
| Parameter | ADHD Focus | This One Thing |
|---|---|---|
| Price | Free โ better | $4.99 |
| Update frequency | Every 3 days โ better | Every 6 weeks |
| Ads | No | No |
| In-app purchases | Yes | No โ better |
| Devices | iPhone, iPad, Mac โ better | iPhone, iPad |
| Requires iOS | 17.0 โ better | 26.0 |
| Further details โ not scored | ||
| Size | 32 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Appgineering GbR | Nikola Knezevic |
In-app purchases
ADHD Focus
- ThatOneThing Premium (1 week)3 Days trial$1.997 Days
- ThatOneThing Premium (1 year)$3.991 Year
This One Thing
No in-app purchases
Questions
Is ADHD Focus free?
Is This One Thing free?
Do ADHD Focus or This One Thing have ads?
Which is updated more often, ADHD Focus or This One Thing?
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