Comparison

IFThenNote vs DayLog

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

Head to head
About

IFThenNote

Features
Read full description

【IFThenNoteとはどんなアプリ?】 if-thenメソッドに基づいて習慣化をサポートするアプリです。 if-thenルールを一覧化し、見返すことで習慣化したいことを忘れないとともに、モチベーション向上に繋がります。 勉強・運動など様々な習慣化にぜひ利用してください。 【if-thenメソッドとは】 もし(if)〇〇なら(then)△△するといったように、自分が日頃行っていることをトリガーとして、習慣化したいことを組み込む習慣化の手法です。 例:もしお菓子を食べたいならプロテインを飲む 【使い方】 If-thenメソッドに基づいて作成したルールをすぐに見返すことができます。 追加ボタンからルールを追加していきましょう。 習慣化できたルールは、項目を左にスワイプすることで削除できます。 【機能一覧】 ・追加したif-thenルールを一覧表示 ・if-thenルールを追加 ・アプリの共有機能 【追加予定の機能】 早く追加してほしい機能があれば、ぜひレビューやアプリの問い合わせからご連絡ください! ・通知機能 ・if-thenルールを実行したカウント機能 ・一覧の並び替え

About

DayLog

Features
Read full description

"Where did my day go?" If you've ever wondered that, DayLog is for you—a simple time-logging app that records how you spend your day with a single tap. Sleep, work, meals, exercise, hobbies—just tap what you're doing now. The previous entry ends automatically and the next begins. No tedious input, no separate start/stop buttons. As your records build up, your day, week, and month come vividly into view. Timeline, donut chart, activity calendar—see your time in numbers and in color. And the more you use it, the more DayLog learns your habits. "Saturday morning—your usual grocery run?" It predicts what's next, so logging gets easier every day. And on the 1st of every month, your "16 Types" result arrives—morning or night, deep focus or quick switching. No questionnaire: your type is diagnosed from how you actually spent your time, delivered as a shareable card with its own character. Every Monday, a weekly report looks back on your week with numbers and gentle insights. ■ Made for you if you ・Lose track of where your day went ・Want to rethink your time and live a little better ・Couldn't stick with complex expense or journaling apps ・Want a light grasp on your sleep and exercise habits ■ Key features ・One-tap logging (switching is automatic) ・Timeline / donut chart / activity calendar ・Widget & Live Activity keep tracking effortless ・Stop reminders / 12 built-in categories ・Customizable categories: add your own—Childcare, Pets, Gaming, and more (up to 18). Rename, re-icon, reorder ・Insight cards: discover patterns you'd never notice ・Predictions: gentle suggestions based on your habits ・The 16 Types: a monthly, shareable type card ・Weekly report: every Monday, a look back at your week ■ Privacy first The contents of your records—what you did and when—stay entirely on your device and are never transmitted. No account required. iCloud backup is supported, so switching phones is worry-free. To improve the app, we collect only anonymous usage statistics (which features are used). You can turn this off anytime in Settings. ■ DayLog Pro (monthly subscription) Free is plenty for everyday use. When you want to look back deeper, go Pro. ・Set as many goals as you like (free plan allows 3) ・View all past data (beyond one month) ・Detailed analysis (day × time-of-day heatmap, long-term trends) ・All insight cards ・Monthly / all-time reports, custom-period analysis ・Color themes Your first tap starts today. And your day begins to come into view. --- - Terms (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ - Privacy Policy: https://sites.google.com/view/daylog-app ---

Screenshots

IFThenNote4 screens
DayLog4 screens

Verdict

The call

The clearest difference is in-app purchases: IFThenNote at none against DayLog's 1. DayLog's advantage is ads (none vs shown) and update cadence (every 3 days vs every 4 months). On price, device support 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. DayLog sells 1 in-app purchase, starting at $4.99 per month. IFThenNote asks for nothing beyond the download.

UpkeepUpdate frequency

IFThenNote ships an update every 4 months, DayLog every 3 days. The most recent releases landed on September 12, 2026 and September 19, 2026 respectively.

Scorecard3 real differences · 3 level
IFThenNote versus DayLog: the parameters behind the verdict, then further details
ParameterIFThenNoteDayLog
PriceFreeFree
Update frequencyEvery 4 monthsEvery 3 days — better
AdsYesNo — better
In-app purchasesNo — betterYes
DevicesiPhone, iPod — betteriPhone
Requires iOS15.2 — better16.4
Further details — not scored
Size5 MB70 MB
Age rating4+4+
Developermasaaki gennoJIN TANDA

In-app purchases

None

IFThenNote

No in-app purchases

1 purchases

DayLog

Subscriptions1
  • Daylog Pro$4.991 Month

Questions

Is IFThenNote free?
IFThenNote is free to download, with no in-app purchases.
Is DayLog free?
DayLog is free to download, with in-app purchases available.
Do IFThenNote or DayLog have ads?
IFThenNote shows ads; DayLog does not.
Which is updated more often, IFThenNote or DayLog?
IFThenNote ships an update every 4 months, and DayLog every 3 days. Most recently, IFThenNote was updated on September 12, 2026 and DayLog on September 19, 2026.

Other comparisons