Comparison

Nagi vs Habit Stacker App

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

Head to head
About

Nagi

Features
Read full description

Most focus timers try really hard to keep you engaged. Streaks, badges, leaderboards, trees you have to keep alive. At some point the app itself becomes the distraction. Nagi is different. It's just a timer. Instead of numbers ticking down, you see time as a 30x30 dot-matrix pattern that fills in gradually — abstract, calm, and completely free from the anxiety of watching seconds disappear. When your session ends, you get a gentle notification. That's it. No guilt if you skip a day. No rewards for showing up. Just honest, quiet focus. WHAT YOU GET - A unique dot-matrix time display that shows progress without pressure - Pomodoro sessions with three built-in presets (25/50/90 min focus) - Automatic work-to-break transitions so you don't have to think about it - Tag your sessions (Work, Study, Creative, Exercise, Personal) to see where your time goes - Today's session timeline at a glance - Home Screen and Lock Screen widgets for your daily and weekly focus - Live Activities and Dynamic Island show your session without opening the app - Light and dark themes using Catppuccin palettes — warm colors that are easy on the eyes - Notification sounds you can customize or turn off entirely - Works offline. Always. WHAT YOU WON'T FIND - No streaks or daily goals - No points, badges, or achievements - No leaderboards or social features - No account sign-up - No cloud tracking - No ads, ever NAGI PRO Nagi is free to use. An optional Nagi Pro subscription unlocks: - Custom focus and break durations (any length you want) - Custom tags for your sessions - Full session history and weekly insights Available as a monthly or annual subscription, or a one-time lifetime purchase. Subscriptions renew automatically until cancelled in your App Store account settings. YOUR DATA STAYS YOURS Everything is stored locally on your device. No accounts, no analytics, no servers collecting your focus habits. Your sessions are nobody's business but your own. WHY "NAGI"? 凪 (nagi) is Japanese for a calm, windless sea. That's the feeling we're going for — focus that feels like stillness, not a race. Built by one person who got tired of focus apps that felt like productivity homework. If you just want a timer that works and stays out of your way, this is it. --- Pomodoro Technique® is a registered trademark of Francesco Cirillo. Nagi is not affiliated with, associated with, or endorsed by the Pomodoro Technique® or Francesco Cirillo. Privacy Policy: https://nagitimer.app/privacy/ Terms of Use: https://nagitimer.app/terms/

About

Habit Stacker App

This app helps you build new routines by linking them to existing daily habits. Track your progress and watch your streaks grow as you consistently achieve your goals.

Highlights
  • Habit stacking technique
  • Streak tracking
  • Habit leveling system
  • Custom habit addition
  • Daily routine integration
Features
Read full description

What is habit stacking? Habit stacking is a proven productivity technique that pairs a new, desired behavior with an existing, automatic daily routine. By using an established habit as a natural trigger, you bypass the need for relying on willpower, making it significantly easier to build consistent routines. After I pour my morning coffee, I will write down my top priority for the day. The coffee is the trigger; the new habit stacks right on top. How the app works? 1. Add a habit and the date you started it. 2. Keep your streak — the app tracks how many days you've kept each habit. 3. Watch habits level up as streaks pass 1, 21, and 365 days.

Screenshots

Nagi4 screens
Habit Stacker App2 screens

Verdict

The call

The clearest difference is in-app purchases: Habit Stacker App at none against Nagi's 3. Habit Stacker App also leads on update cadence (every 2 days vs every 10 days) and device support (3 vs 1). On price, ads 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. Nagi sells 3 in-app purchases, starting at $2.49 per month. Habit Stacker App asks for nothing beyond the download.

UpkeepUpdate frequency

Nagi ships an update every 10 days, Habit Stacker App every 2 days. The most recent releases landed on September 25, 2026 and October 13, 2026 respectively.

Scorecard3 real differences · 7 level
Nagi versus Habit Stacker App: the parameters behind the verdict, then further details
ParameterNagiHabit Stacker App
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—1 — better
Update frequencyEvery 10 daysEvery 2 days — better
AdsNoNo
In-app purchasesYesNo — better
Monetization—Free
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS16.415.6 — better
Further details — not scored
Size70 MB4 MB
Age rating4+4+
DeveloperAgata RaapJohn Picasso

In-app purchases

3 purchases

Nagi

Subscriptions2
  • nagi+ Monthly$2.491 Month
  • nagi+ Annual7 Days trial$22.991 Year
One-time1
  • nagi+ Lifetime$45.99
None

Habit Stacker App

No in-app purchases

Questions

Is Nagi free?
Nagi is free to download, with in-app purchases available.
Is Habit Stacker App free?
Habit Stacker App is free to download, with no in-app purchases.
Do Nagi or Habit Stacker App have ads?
Neither Nagi nor Habit Stacker App shows ads.
Which is updated more often, Nagi or Habit Stacker App?
Nagi ships an update every 10 days, and Habit Stacker App every 2 days. Most recently, Nagi was updated on September 25, 2026 and Habit Stacker App on October 13, 2026.

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