Comparison

MetaTimer Timeboxing for ADHD vs One & Three

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

Head to head
About

MetaTimer Timeboxing for ADHD

This app helps individuals with time blindness and task initiation challenges by providing a flexible timeboxing system. It allows users to plan their day with visual timelines and focus on tasks with distraction-free sessions, offering gentle guidance for better productivity.

Highlights
  • Flexible timeboxing
  • Visual timeline view
  • Distraction-free focus timer
  • Task estimation vs. actual time tracking
  • Routine creation
  • Finish by prediction
  • Calendar and Reminders integration
Read full description

Timeboxing for ADHD and Focused Work Finally see where your day goes. MetaTimer is a timeboxing and focus timer app built for people who struggle with time blindness and task initiation. Designed for ADHD minds, students, and freelancers, it gives you structure without rigidity. Unlike rigid Pomodoro timers, MetaTimer lets you build your day like a playlist. Each task gets its own time block, but you stay in control of the flow. Add tasks, hit play, and follow your plan one block at a time. What MetaTimer helps you do - Beat time blindness with a visual timeline of your day - Plan with flexible time blocks - Focus deeply with distraction-free sessions - Track estimated vs actual time - Reduce decision fatigue with routines - Know when you'll be done with a “Finish by” prediction Features - Flexible timeboxing - Visual timeline view - Focus timer with progress ring - Daily stats and weekly reports - Pause and resume without breaking flow - Category tags and project grouping - Siri Shortcuts and voice commands - Lock Screen and Dynamic Island live activities - Calendar and Reminders integration - Billable time reports for freelancers MetaTimer provides just enough structure without feeling overwhelming, helping you stay present and track time honestly. Perfect for students, remote workers, freelancers, creatives, and people with ADHD who need gentle guidance instead of strict rules.

About

One & Three

This productivity app helps you focus on your most important tasks with a simple, minimalist design. It limits your daily focus to one main task and up to three supporting tasks, reducing overwhelm and decision fatigue.

Highlights
  • Focus on one main task daily
  • Add up to three supporting tasks
  • Minimalist and calming design
  • Quick entry with no distractions
  • Simple gestures and intuitive flow
  • Reduces decision fatigue
Read full description

Stay focused. Feel accomplished. One & Three is a radically simple to-do list app designed to work with your brain—not against it. Whether you’re neurodivergent, easily distracted, or just overwhelmed by endless lists, this app helps you focus on what really matters. How it works: • Choose One main task for the day • Add up to Three supporting tasks • That’s it—no complicated folders, categories, or endless scrolling This structure helps reduce decision fatigue and fight off the “too much to do” spiral. Built with ADHD brains in mind: • Minimal, calming design • Quick entry with no distractions • Simple gestures and intuitive flow We believe productivity doesn’t have to be overwhelming. One & Three is a small app with a big heart—designed to help you get through the day, one task at a time. Support the developer: One & Three will always be free. If you’d like to support the app, you can make a one-time purchase in the app to keep it going and to support the developer.

Screenshots

MetaTimer Timeboxing for ADHD4 screens
One & Three4 screens

Verdict

The call

The clearest difference is in-app purchases: MetaTimer Timeboxing for ADHD at none against One & Three's 4. One & Three's advantage is update cadence (daily vs every 3 weeks). On price, rating, ratings volume and ads 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. One & Three sells 4 one-off in-app purchases. MetaTimer Timeboxing for ADHD asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for MetaTimer Timeboxing for ADHD against 5.0 for One & Three. Both are backed by a comparable volume of ratings — 3 and 5 respectively.

UpkeepUpdate frequency

MetaTimer Timeboxing for ADHD ships an update every 3 weeks, One & Three daily. The most recent releases landed on November 4, 2026 and October 30, 2026 respectively.

Scorecard3 real differences · 7 level
MetaTimer Timeboxing for ADHD versus One & Three: the parameters behind the verdict, then further details
ParameterMetaTimer Timeboxing for ADHDOne & Three
PriceFreeFree
Rating5.0 (3 ratings)5.0 (5 ratings)
Positive reviews—100.0% of reviews
Number of ratings35 — better
Update frequencyEvery 3 weeksDaily — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhoneiPhone, iPad — better
Requires iOS16.6 — better17.6
Further details — not scored
Size43 MB4 MB
Age rating4+4+
DeveloperOleh PavlivScott Curry

In-app purchases

None

MetaTimer Timeboxing for ADHD

No in-app purchases

4 purchases

One & Three

One-time4
  • Small$1.99
  • Medium$4.99
  • Large$9.99
Show 1 more
  • Extra-Large$24.99

Questions

Is MetaTimer Timeboxing for ADHD free?
MetaTimer Timeboxing for ADHD is free to download, with no in-app purchases.
Is One & Three free?
One & Three is free to download, with in-app purchases available.
Which has better reviews, MetaTimer Timeboxing for ADHD or One & Three?
MetaTimer Timeboxing for ADHD and One & Three are both rated 5.0 out of 5 on the App Store, from 3 and 5 ratings respectively.
Do MetaTimer Timeboxing for ADHD or One & Three have ads?
Neither MetaTimer Timeboxing for ADHD nor One & Three shows ads.
Which is updated more often, MetaTimer Timeboxing for ADHD or One & Three?
MetaTimer Timeboxing for ADHD ships an update every 3 weeks, and One & Three daily. Most recently, MetaTimer Timeboxing for ADHD was updated on November 4, 2026 and One & Three on October 30, 2026.

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