Comparison

CoupleLog vs Onseol

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

Head to head
About

CoupleLog

Features
Read full description

Count the days that matter - CoupleLog Enter the one date you started dating and CoupleLog takes care of the rest. Day one is the day you met, and every milestone after that is worked out for you. - What you get • D-Day counter How many days you have been together, with both of your names, a photo and your start date. • Automatic anniversaries 100 days through 1,000 days, and one year through ten years. Twenty milestones, generated for you. • Anniversary tab Grouped by year, split into upcoming and past, each with a D-N badge. The next three sit on your home screen. • Reminders A notification at 9 AM on D-7, D-3 and the day itself. Turn reminders on or off in Settings. • Home screen widgets A small widget with your names and day count, and a medium one that adds your start date and the next milestone. On iOS and Android. • Your own dates First kiss, first trip, the day you moved in. Give it a name and a date and it joins the list. • Photo timeline Save a photo with an optional note and a date, then read your story back as a vertical timeline. Entries can be linked to an anniversary. • A soft pink and rose design made for two - Who it is for • Couples who never want to miss a milestone • Anyone who knows the date but hates doing the math • People who want the count on their home screen - Private by design Everything stays on your device. Nothing is sent to a server, and there is no account and no sign-up. CoupleLog is free, supported by banner ads and an occasional full-screen ad when you save a memory.

About

Onseol

Features
Read full description

Onseol counts the days that matter — no account, no sign-up. Every date lives only on your phone. • Korean-style D-day — D-DAY, D-100, and days-since counted from day 1. 100-day and yearly milestones, automatically. • Lunar (ģŒė „) birthdays & memorials — converted to the solar date each year. • Home & Lock Screen widgets — they survive iOS updates and stay date-sorted. • Reminders — D-7, D-DAY, and milestones, all on device. No subscription. No account. A one-time Pro removes the ads and lifts the event limit.

Screenshots

CoupleLog3 screens
Onseol3 screens

Verdict

The call

The clearest difference is in-app purchases: CoupleLog at none against Onseol's 1. On price, update cadence, ads and device support there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

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

UpkeepUpdate frequency

CoupleLog ships an update every 10 days, Onseol every 11 days. The most recent releases landed on October 4, 2026 and September 29, 2026 respectively.

Scorecard1 real difference Ā· 5 level
CoupleLog versus Onseol: the parameters behind the verdict, then further details
ParameterCoupleLogOnseol
PriceFreeFree
Update frequencyEvery 10 days — betterEvery 11 days
AdsYesYes
In-app purchasesNo — betterYes
DevicesiPhone, iPodiPhone, iPod
Requires iOS15.115.0 — better
Further details — not scored
Size43 MB26 MB
Age rating4+4+
DeveloperSeonggon SimMustafa Salim Erek

In-app purchases

None

CoupleLog

No in-app purchases

1 purchases

Onseol

One-time1
  • Onseol Pro$9.99

Questions

Is CoupleLog free?
CoupleLog is free to download, with no in-app purchases.
Is Onseol free?
Onseol is free to download, with in-app purchases available.
Do CoupleLog or Onseol have ads?
Both CoupleLog and Onseol show ads.
Which is updated more often, CoupleLog or Onseol?
CoupleLog ships an update every 10 days, and Onseol every 11 days. Most recently, CoupleLog was updated on October 4, 2026 and Onseol on September 29, 2026.

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