# This One Thing: Single Task — ADHD Focus Todo Productivity > ADHD Focus Todo Productivity (iPhone/iPad app by Nikola Knezevic.) - Source: https://appshunter.io/ios/app/this-one-thing-single-task/id6753627958 (this page in markdown: same URL + `.md`) - Developer: [Nikola Knezevic](https://appshunter.io/developer/1774051159) - Category: Productivity, Health & Fitness - Price: $4.99 - Age rating: 4+ - Requires: iOS 26.0 · 1 MB - Languages: American English - Released: 2025-10-14 - Data updated: 2026-05-17 - User reviews in markdown: https://appshunter.io/ios/app/this-one-thing-single-task/id6753627958/reviews.md ## What is This One Thing? 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: • Privacy Policy: https://pragmathema.com/#this • Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ ## Version history (last 3 releases) ### 1.2 — 2026-01-06 This One Thing v1.2 Widget Update: Your Task Follows You Now What hasn't changed: Still one task. Still no list view. Still no peeking. Still offline. Still deliberately limiting because limitation works. What's new: Home screen widget. Now the task finds you. No opening the app to "check what's next." It's right there. One task. One glance. One fewer excuse. Most widgets show you everything. Calendars with 12 events. Todo lists with collapsed categories. Badges screaming "47 items!" This widget shows one sentence. The thing you're avoiding by checking your widget. The behavioral economics: Friction has two types. Bad friction stops you starting. Good friction stops you escaping. Opening an app is bad friction. Seeing your whole list is an escape hatch. Widget removes bad friction (no app launch). Keeps good friction (still can't browse tasks). Still not for: People who need "the full picture" (that picture paralyzes you) Project managers (go buy OmniFocus) Anyone who thinks more features = better (they don't) Still perfect for: ADHD brains who open the app and forget why People who'd complete tasks if they just saw them more Humans who need the next step visible, always Three competitors still rank higher. Zero understand that reducing options increases completion. That's still worth £4.99. ### 1.1 — 2025-11-23 This One Thing: Single Task; ADHD Focus Todo Productivity v 1.1 Anti-Productivity Update: Now Even Better at Hiding Your List! What did not change: Still offline, still fast task capture, smooth done confirmations, best single-task focus enforcement. But here's what hasn't changed: you still can't see your full todo list. That's not a bug. Things 3 and Todoist organize beautifully. OmniFocus plans comprehensively. TickTick reminds obsessively. You complete nothing because seeing 47 options creates paralysis, not productivity. THIS ONE THING solves it backwards: one task visible until done. Add everything. See one thing. No peeking at the list. No "let me just reorganize" procrastination. Not for people who love planning (that's every other reminder app). For ADHD brains tired of task lists that paralyze instead of mobilize. The best solutions solve the opposite problem. We're not helping you organize tasks. We're hiding them. Three competitors rank higher. Zero understand that your checklist is the problem, not the solution. ### 1.0 — 2025-10-14 No release notes. ## More apps by Nikola Knezevic - [Pragmatic Invoice Maker To Go](https://appshunter.io/ios/app/pragmatic-invoice-maker-to-go/id6736955339) - [Brain Habit: Offline Quiz Game](https://appshunter.io/ios/app/brain-habit-offline-quiz-game/id6751650994) - [Meeting Minutes: Pragmatic AI](https://appshunter.io/ios/app/meeting-minutes-pragmatic-ai/id6752467167) - [Secret Prophecy: Bucket List](https://appshunter.io/ios/app/secret-prophecy-bucket-list/id6752826465) - [Fuzzy Time: Stress Relief](https://appshunter.io/ios/app/fuzzy-time-stress-relief/id6753138124) - [LATER: Stress Anxiety Relief](https://appshunter.io/ios/app/later-stress-anxiety-relief/id6753189220) All apps by Nikola Knezevic: https://appshunter.io/developer/1774051159 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-05-17.*