Comparison

FlowStack vs Productivity 101

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

Head to head
About

FlowStack

This app helps you beat procrastination and sharpen focus with a simple timer and task manager. Organize your day into routines, stack tasks sequentially, and track your progress with built-in statistics. Ideal for individuals with ADHD, students, and professionals seeking enhanced productivity.

Highlights
  • Flexible task timer
  • Stack tasks sequentially
  • Build habits with daily routines
  • ADHD-friendly focus
  • Live Activities and Dynamic Island integration
  • Track daily & weekly stats
  • Unlimited tasks (free version)
Features
Read full description

No ads. No account required. Just focus. FlowStack is a simple productivity timer, task manager, and routine app designed to beat procrastination and sharpen focus by having a clear name and timer for your task. Use it as a flexible timer for personal, work or study tasks, daily routines, or a focus tool if you struggle with multitasking or constant task switching. FlowStack keeps you on track and making real progress, one task at a time. In FlowStack, each task or to-do has an estimated duration and a timer that starts ticking down when you start the session. This makes it easier starting the task, and helps you get into a flow state by focusing on one task at a time. The current task is also shown as a Live Activity and in the Dynamic Island, making it easy to stay on task even while you're using another app. Once you're done, FlowStack pushes you into the next task. Need more time to finish the first task? Simply add more time to the timer, or continue in a flow state where time is unlimited. If you want to use it as a to-do list rather than focus session, you can also complete a task without starting the timer. Perfect for: • Procrastinators who struggle getting started • People with ADHD seeking simple focus tools • Anyone organizing tasks into daily routines • Users wanting a simple system for recurring tasks • Fans of Pomodoro and Atomic Habits (habit stacking, time blocking) • Professionals and students boosting productivity and focus • Anyone starting good habits—fitness, mental health, cleaning, learning, etc. What makes FlowStack different? • Flexible task timer. Like Pomodoro, but customizable and clear • Stack tasks in sequence. Avoid distractions, build flow by doing tasks after eachother (habit stacking) • Build habits with daily routines (morning routine, workout, study, business tasks) • ADHD-friendly focus and clean time blocking, no clutter • Great for deep work, project planning, personal growth • Tasks, focus timers, routines all in one simple app Core features: • Stack tasks with individual timers to stay focused on one task at a time (Live Activities and Dynamic Island shows the current task name and time left) • Flexibly time block your schedule for focused productivity. Each task has an estimated duration, easily extendable in case you need more time for a task • Unlimited tasks & templates for recurring tasks (2 template/routine limit for free users, unlimited one-off tasks for free users) • Track daily & weekly stats for motivation • Lightweight, minimalist. No accounts, no ads, generous free version available FlowStack is your ADHD-friendly productivity tool to block distractions, maintain momentum, and stay organized. Whether you're tackling homework, working remotely, or aiming for a structured day, FlowStack turns your to-do list into action. Boost time management Stay productive with a built-in flexible Pomodoro timer Get motivated with simple progress tracking Apple terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Productivity 101

Features
Read full description

Productivity 101 turns focus into a measurable habit. Start a session like a chess clock: your work time counts up, and when you need a break you tap once — break time is tracked separately, so you always know your true focused hours. End the session for a clean summary of work, breaks, and focus rate. It's built for people who are accountable to themselves — students with deadlines, founders, freelancers, and anyone who works long hours and wants to see the proof. TRACK WHAT MATTERS • Chess-clock timer with separate work and break tracking • Assign each session to a task; set daily or weekly time targets • Live progress bars and a clear daily goal STAY MOTIVATED — PROFESSIONALLY • A Focus Score and Levels earned purely from real logged hours • Daily and weekly objectives, with streaks and streak protection • Badges at 100, 200, 500 and 1,000 hours per task UNDERSTAND YOUR PATTERNS • A contribution heatmap of your focus, day by day • Personal records, lifetime hours, and per-task trends • Daily and weekly recaps MADE TO STAY OUT OF YOUR WAY • Hands-free voice control of the timer • Optional reminders as you near a target • Works offline; syncs securely across your devices when you sign in You're accountable to yourself. Productivity 101 keeps the score.

Screenshots

FlowStack4 screens
Productivity 1014 screens

Verdict

The call

The clearest difference is in-app purchases: Productivity 101 at none against FlowStack's 3. FlowStack's advantage is update cadence (every 6 days vs every 3 weeks). On price, ads, device support and iOS requirement 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. FlowStack sells 3 in-app purchases, starting at $3.99 per month. Productivity 101 asks for nothing beyond the download.

UpkeepUpdate frequency

FlowStack ships an update every 6 days, Productivity 101 every 3 weeks. The most recent releases landed on October 24, 2026 and October 7, 2026 respectively.

Scorecard2 real differences · 8 level
FlowStack versus Productivity 101: the parameters behind the verdict, then further details
ParameterFlowStackProductivity 101
PriceFreeFree
Rating4.9 (8 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings8 — better—
Update frequencyEvery 6 days — betterEvery 3 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemium—
DevicesiPhone, iPadiPhone, iPod
Requires iOS16.215.0 — better
Further details — not scored
Size117 MB3 MB
Age rating4+4+
DeveloperNero studiosFINLAY OSCAR HAWKER

In-app purchases

3 purchases

FlowStack

Subscriptions2
  • Premium access monthly7 Days trial$3.991 Month
  • Premium access yearly7 Days trial$22.991 Year
One-time1
  • Lifetime$49.99
None

Productivity 101

No in-app purchases

Questions

Is FlowStack free?
FlowStack is free to download, with in-app purchases available.
Is Productivity 101 free?
Productivity 101 is free to download, with no in-app purchases.
Do FlowStack or Productivity 101 have ads?
Neither FlowStack nor Productivity 101 shows ads.
Which is updated more often, FlowStack or Productivity 101?
FlowStack ships an update every 6 days, and Productivity 101 every 3 weeks. Most recently, FlowStack was updated on October 24, 2026 and Productivity 101 on October 7, 2026.

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