Ziro vs Pomo
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Ziro
Read full descriptionHide full description
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 — 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 — 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.
Pomo
A beautifully designed Pomodoro timer for focused work and study sessions. It offers customizable cycles, app blocking, and insightful statistics without any ads or tracking.
- Customizable Pomodoro cycles
- App blocking for distraction-free sessions
- Insightful focus statistics
- Live countdown on lock screen
- Companion smartwatch app
- Calendar sync option
Read full descriptionHide full description
Pomo is a calm, design-led Pomodoro timer for deep, focused work — and the study sessions in between. No trees, no pets, no gimmicks. Just a beautiful instrument that helps you start, stay in flow, and see the rhythm of your focus. Everything stays on your device. No account, no cloud, no ads — ever. — A TIMER YOU'LL WANT TO LOOK AT — Choose from a gallery of meticulously crafted focus faces, from a minimalist minute grid to a flowing tide, in warm paper-light and calm dark themes. — BUILT FOR WORK & STUDY — Run classic Pomodoro cycles or set your own focus and break lengths. Long breaks, auto-start and simple labels shape each session around deep work, study, revision or any task. — STAY IN FLOW — Gently block distracting apps for the length of a session, silence notifications, and get a quiet nudge if you wander. Turn on strict mode when you really need to commit. — SEE YOUR RHYTHM — An editorial stats ledger turns sessions into insight: a focus heatmap, per-label breakdowns and all-time totals. Understand your concentration without turning it into a game. — ALWAYS A GLANCE AWAY — A live countdown on your lock screen and a companion smartwatch app keep the timer close. Optionally sync finished sessions to your calendar. — POMO PRO — The core timer is free, forever. Pomo Pro unlocks every focus face, the full stats ledger, app blocking and calendar sync, with a free trial and monthly or yearly billing. No ads, no account, no tracking. Focus, beautifully. Private by design.
Screenshots
Verdict
The clearest difference is in-app purchases: Ziro at none against Pomo's 2. Ziro also leads on iOS requirement (15.1 vs 26.0). Pomo's advantage is update cadence (every 2 weeks vs every 2 months). On price, ads and device support 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
Both are free to download. Pomo sells 2 in-app purchases, starting at $4.99 per month. Ziro asks for nothing beyond the download.
Ziro ships an update every 2 months, Pomo every 2 weeks. The most recent releases landed on September 24, 2026 and September 15, 2026 respectively.
| Parameter | Ziro | Pomo |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (2 ratings) — better |
| Number of ratings | — | 2 — better |
| Update frequency | Every 2 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Freemium |
| Devices | iPhone, iPad, iPod — better | iPhone, Apple Watch |
| Requires iOS | 15.1 — better | 26.0 |
| Further details — not scored | ||
| Size | 46 MB | 53 MB |
| Age rating | 4+ | 4+ |
| Developer | Innolope | Chirag Arora |
In-app purchases
Ziro
No in-app purchases
Pomo
- Pomo Pro - Monthly7 Days trial$4.991 Month
- Pomo Pro - Yearly7 Days trial$17.991 Year





