Comparison

Doblin vs Sundae

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

Head to head
About

Doblin

Features
Read full description

Most to-do apps are drawers. Doblin is a companion. You don't put things off because you have nothing to do — you put them off because there's too much. So Doblin shows you one thing: the task that matters right now. Finish it, and the next one appears. ONE TASK AT A TIME Open the app and there's no wall of items to triage. Just what's next, chosen from due dates, priority and how long it's been waiting. Not ready for it? Skip to the next one. CAPTURE IN A SECOND Type "buy milk tomorrow 7pm" and Doblin sets the title and the due date for you — in your own language. Add one after another without the keyboard ever dropping. A COMPANION THAT GROWS Every task you finish grows your Doblin, from a little sprout to something radiant. It never shrinks. Once you've reached a stage you can keep whichever one you like best. GENTLE, NEVER PUSHY Streaks that forgive a missed day. Confetti when the day is clear. No leaderboards, no guilt notifications, no punishment for falling behind. MADE FOR EVERY DAY - Due dates, times and reminders - Repeats: daily, weekdays, weekly, monthly - Priority, drag to reorder, swipe to complete or delete, undo - Home screen widget - Light and dark - Full VoiceOver and Dynamic Type support PRIVATE BY DEFAULT No account. No tracking. No ads. Your tasks stay on your device — always. To fix crashes and see which features get used, Doblin sends anonymous diagnostics and usage statistics. Never what you typed. Switch it off anytime in Settings > Privacy. English, 한국어, 日本語, 简体中文, Español.

About

Sundae

Features
Read full description

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

Screenshots

Doblin4 screens
Sundae4 screens

Verdict

The call

The clearest difference is in-app purchases: Doblin at none against Sundae's 1. On price, update cadence, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Sundae sells 1 one-off in-app purchase. Doblin asks for nothing beyond the download.

UpkeepUpdate frequency

Doblin ships an update weekly, Sundae every 4 days. The most recent releases landed on October 5, 2026 and October 10, 2026 respectively.

Scorecard1 real difference · 5 level
Doblin versus Sundae: the parameters behind the verdict, then further details
ParameterDoblinSundae
PriceFreeFree
Update frequencyWeeklyEvery 4 days — better
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPad — betteriPhone
Requires iOS17.017.0
Further details — not scored
Size10 MB13 MB
Age rating4+4+
DeveloperKWANG ROK KIM飞 徐

In-app purchases

None

Doblin

No in-app purchases

1 purchases

Sundae

One-time1
  • Sundae Full$9.99

Questions

Is Doblin free?
Doblin is free to download, with no in-app purchases.
Is Sundae free?
Sundae is free to download, with in-app purchases available.
Do Doblin or Sundae have ads?
Neither Doblin nor Sundae shows ads.
Which is updated more often, Doblin or Sundae?
Doblin ships an update weekly, and Sundae every 4 days. Most recently, Doblin was updated on October 5, 2026 and Sundae on October 10, 2026.

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