Simple Pomodoro Timer + Watch vs Ziro
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Simple Pomodoro Timer + Watch
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A simple Pomodoro timer that helps you focus: 25 minutes of work, 5 minutes of break, repeat. β Truly works with Apple Watch - iPhone and Apple Watch stay in sync in real time β control the timer from either device - Works standalone on Apple Watch, no iPhone needed - Feel a haptic alarm on your wrist exactly when the phase ends, even with the screen off - Complications show the remaining time right on your watch face β Reliable in the background - Notifications fire at the exact end time β even when the app is closed or the screen is locked - Live Activity on the Lock Screen and Dynamic Island shows the countdown at a glance - Start and pause from Home Screen / Lock Screen widgets (StandBy supported) β Track your focus - Completed pomodoros are logged automatically, with an optional task label (tag) - See today / weekly / all-time counts, total focus time, and your streak - Per-tag breakdown shows where your time actually went - Set a daily goal and watch the progress dots fill up β Make it yours - Customize work and break lengths (down to seconds) - Long break every 4 pomodoros β the classic Pomodoro cycle - Choose alert sounds, haptic strength, and ambient sounds β No strings attached - No account, no sign-up. Open the app and start - Just a small banner ad at the bottom β it never interrupts your focus (one-time purchase to remove)
Ziro
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Time, told in ones and zeros. Calm, delivered in soft hiss and rain. Ziro is a tiny piece of digital art that hides a binary clock and a white-noise machine inside one quiet screen. Open it on your desk while you work, set it by your bed while you sleep, or just leave it glowing on a spare phone as ambient room decor. No accounts, no ads, no nagging notifications β just zeros, ones, and the sound of focus. A BINARY CLOCK FOR THE TECHNICALLY CURIOUS Every column of dots is a digit; every dot is a power of two. Ziro turns the time of day into the same on/off language your computer speaks, making it an instant conversation piece for developers, engineers, students, and anyone who likes their gadgets a little geekier. Glance at it for a second and you get the time. Stare at it for a minute and you start to feel the pattern. It is the kind of clock that quietly teaches you something every time you check it. A FRIENDLY WAY TO LEARN BINARY Ziro doubles as a tiny lesson in how computers actually count. Watching the dots light up and reset teaches place value and powers of two more naturally than a textbook diagram. It is handy for students learning binary numbers for the first time, parents looking for a simple computer science explainer for kids, teachers wanting a visual aid, or anyone brushing up before a coding interview. There are no quizzes and no lessons to complete, just a clock that happens to explain itself. A POMODORO TIMER WITH WHITE NOISE BUILT IN Ziro pairs a classic Pomodoro work-and-break regime with a built-in sound machine, so deep work sessions arrive scored. Pick an interval, hit start, and let the soft hiss of white, pink, or brown noise mask office chatter while the binary dots quietly count down. Swap in rain, wind, or steady ambient hum to soothe a restless mind at bedtime, soundtrack a morning meditation, or help a baby drift off. Everything runs offline, so the soundscape never stops to buffer. A MINIMAL DESIGN, MADE AS AN ART PROJECT Ziro started as a small art project about how little a clock really needs to be. The result is a stripped-back interface with no menus to learn, no streaks to keep, and no dashboards to optimize. Just light, time, and sound β composed to feel calm on a nightstand and at home on a standing desk. Pick a color, dim the dots, and let the room change around it. FREE FOREVER, POWERED BY DONATIONS Ziro is completely free, with no subscriptions, no paywalls, and no advertising. If the app earns a spot in your daily routine, an optional donation inside the app keeps it independent and helps fund the next quiet feature. Download it, share it with the nerd in your life, and turn any screen into a small piece of moving art. Less interface. More time. Ziro. Ziro is free to download.
Screenshots
Verdict
The clearest difference is ads: Ziro at none against Simple Pomodoro Timer + Watch's shown. Ziro also leads on iOS requirement (15.1 vs 17.0). Simple Pomodoro Timer + Watch's advantage is update cadence (every 4 days vs every 2 months). On price, in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Simple Pomodoro Timer + Watch ships an update every 4 days, Ziro every 2 months. The most recent releases landed on September 10, 2026 and September 24, 2026 respectively.
| Parameter | Simple Pomodoro Timer + Watch | Ziro |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 days β better | Every 2 months |
| Ads | Yes | No β better |
| In-app purchases | No | No |
| Devices | iPhone, Apple Watch | iPhone, iPad, iPod β better |
| Requires iOS | 17.0 | 15.1 β better |
| Further details β not scored | ||
| Size | 9 MB | 46 MB |
| Age rating | 4+ | 4+ |
| Developer | Takahiro Ito | Innolope |
In-app purchases
Simple Pomodoro Timer + Watch
No in-app purchases
Ziro
No in-app purchases
Questions
Is Simple Pomodoro Timer + Watch free?
Is Ziro free?
Do Simple Pomodoro Timer + Watch or Ziro have ads?
Which is updated more often, Simple Pomodoro Timer + Watch or Ziro?
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