Sundae vs Roundi
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sundae
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Time you can't see is time you can't feel. Sundae turns it into something you can watch — an ice cream that melts, a candle that burns down, a train that rides home. Start a session, set your phone down, and just glance. MADE FOR TIME BLINDNESS • Every second is visible: the scene is consumed smoothly in real time, on screen and on your Lock Screen • Live Activity + Dynamic Island: the melting sundae stays with you even when the phone is face up on your desk • Start in three seconds: two taps, no setup, no account NO GUILT. EVER. • Step away anytime — your session just naps. Nothing withers, nothing breaks, nothing is lost • Streaks only celebrate. Miss a day and the app simply says nothing • Rest counts: Lounge Mode is an official do-nothing timer. A sun sets over the sea while you lie flat. Finishing a rest keeps your streak alive A FRIEND, NOT A COACH • Pebble the sea otter waits with you, naps with you, and floats in the dessert lake when you finish • Write one thing ("Reply to Sam's email") and the whole app becomes about just that — even on your Lock Screen • Finished time becomes a collection of little dioramas ONE THING A DAY • Tell Sundae what you're working toward, and roughly how you'd get there • Each day it puts a single step on your Lock Screen — tap it and you're focusing • Skip one and it rotates to the next. Nothing is ever overdue, nothing accumulates • Never a list, never a checkbox, never a nag TWELVE SCENES, THREE UNIVERSES • Dessert: Sundae, Popsicle, Hot Cocoa, Cotton Candy • Flame: Candle, Campfire, Sparkler, Firefly Jar • Journey: Night Train, Sailboat, Balloon, Snail SOUND THAT ACTUALLY HELPS • Real rain and ocean recordings, crackling fireplace, summer crickets, brown noise • Gentle music-box chime when you finish — never an alarm PAY ONCE. YOURS FOREVER. • Free: full timer, Pebble, and three scenes • Sundae Full ($9.99, one-time): every scene, Lounge Mode, the full collection • Never a subscription PRIVATE BY DESIGN • Works completely offline. No account, no ads, no tracking, no data collected — the app has no networking capability at all
Roundi
This app encourages single-task focus by visualizing time as a disappearing color disc. It enforces focus by making leaving the app before a round ends costly. Users can create custom focus rituals and control it hands-free with voice commands.
- Visual time tracking
- Single-task enforcement
- Customizable focus rituals
- Voice control with Siri
- Apple Watch integration
- Multiple visual themes
- Focus streak tracking
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One round, one thing. Roundi holds you to a single task and shows the time as color: focus you can see. Turn the dial, press start, and a disc of color begins to disappear — like a kitchen timer for your attention. No numbers counting down, no notifications pulling you back. Just time, visibly running out. THE ONE RULE Leave the app — or lock the screen — before the round ends, and the round is lost, instantly. That's the whole trick: Roundi doesn't block anything, it just makes leaving cost something. (Too strict? There's a Lenient mode.) MADE FOR YOUR RITUALS • Meditate — 15 quiet minutes, watching the color fade • Study — a 50-minute block with no pings • Work — deep work sessions up to 2 hours • Train — planks, dead hangs, rest between sets Save each ritual as a tag and it becomes a one-tap start button with its own duration. SAY IT, DON'T TAP IT "Start Plank in Roundi." Between rounds, Siri sets the length, starts a tag, adds another round, or tells you your streak. Hands free — and once a round starts, nothing interrupts you. ON YOUR WRIST Roundi runs on Apple Watch too. Turn the Digital Crown, tap START, and the color sweeps away on your wrist; a tap and a chime mark the end. Watch rounds land in your iPhone's calendar, Siri works on the watch, and one rule carries over: unlock your iPhone during a watch round and the round ends. A TIMER YOU'LL WANT TO LOOK AT Choose how time drains: a clockwise disc, a color that falls or rises across the whole screen, or a spiral coil that unwinds from the outside in. Six soft colors. A chime and a soft blink of color when the round completes. EVERY ROUND, KEPT Finished rounds land as dots on your calendar, with your daily total and streak. Time becomes habit; habit becomes you. PRIVATE BY DESIGN No account. No sign-up. Your rounds stay on your device. Set a time. Stay focused. One round at a time.
Screenshots
Verdict
The clearest difference is in-app purchases: Roundi at none against Sundae's 1. Roundi also leads on device support (4 vs 1). On price, update cadence, 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
Both are free to download. Sundae sells 1 one-off in-app purchase. Roundi asks for nothing beyond the download.
Sundae ships an update every 4 days, Roundi every 2 days. The most recent releases landed on October 24, 2026 and October 20, 2026 respectively.
| Parameter | Sundae | Roundi |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (2 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 2 — better |
| Update frequency | Every 4 days | Every 2 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | — | Free |
| Devices | iPhone | iPhone, iPad, Mac, Apple Watch — better |
| Requires iOS | 17.0 | 16.0 — better |
| Further details — not scored | ||
| Size | 13 MB | 26 MB |
| Age rating | 4+ | 4+ |
| Developer | 飞 徐 | Yakppal, Inc. |
In-app purchases
Sundae
- Sundae Full$9.99
Roundi
No in-app purchases









