Comparison

Simple Life Log vs Day

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

Head to head
About

Simple Life Log

Features
Read full description

Simple Life Log helps you record your daily activities by date, item, and memo. All data stays only on your deviceβ€”no account required, no cloud sync. A straightforward way to keep a personal lifelog with privacy in mind. β–  KEY FEATURES β€’ Record by date, item, and memo Tap a date and an item (e.g. Exercise, Reading, Meals), add an optional memo, and save. Your log is stored locally on your device. β€’ No account, no server Everything is saved only on your phone or tablet. We do not collect or upload your data. β€’ Ready-made and custom items Use built-in items like Exercise, Workout, Meals, Cooking, Reading, Meditation, and more. You can also add, edit, or hide items to match your lifestyle. β€’ Calendar view See your logs on a calendar. Tap a day to add or view entries. β€’ Search by period and item Search logs by period (e.g. last week, this month, last year) or choose a custom date range. Filter by a single item to see when you did that activity. β€’ Available in English and Japanese The app and store listing can be shown in your language. β–  HOW TO USE β€’ Home Today’s log and quick access to add new entries. Tap an item to log it for today with an optional memo. β€’ Calendar Browse logs by month. Tap a date to add or see logs for that day. β€’ Data Manage your items: add new ones, edit names and colors, or move items to β€œdeleted” (they stay available for past logs). β€’ Search Set a period (preset or custom range) and optionally pick one item. Results are shown as a list by date. Only the result area scrolls for easy reading. β–  DATA & PRIVACY All data is stored only on your device using local storage (SQLite). We do not send your logs, items, or memos to any server. For more details, see the in-app privacy policy link. β–  SUPPORT If you have questions or feedback, please contact us via the email in the app’s privacy policy or store listing. Thank you for trying Simple Life Log.

About

Day

Features
Read full description

Never miss a special moment again! This is a simple and intuitive countdown app that lets you see exactly how many days are left until your loved ones' birthdays and important anniversaries. β–  Recommended for: People who want to celebrate friends and family in a special way. Anyone managing wedding anniversaries, graduations, or school events. Those who want to keep track of upcoming milestones at a glance. β–  Main Features [Countdown Display] View remaining days in a large, clear list. For past events, the app automatically calculates the countdown to the next occurrence. [Smart Notifications] Set alerts for the day of, the day before, 3 days, or 7 days in advance. Customize the notification time to suit your schedule. [Widget Support] Check your countdowns right from your Home Screen. Supports Small, Medium, and Large sizes, as well as Lock Screen widgets. [Birthday Insights] Automatically displays Zodiac signs and constellations. It also includes unique features like Japanese traditional "Yakudoshi" (unlucky years) and longevity milestones (60th, 70th birthdays, etc.). [CSV Import] Register multiple events at once using CSV files. Save time and avoid manual entry. [Customization] Personalize your app with various theme colors and custom icons for each event. [Other Features] Sorting options (By remaining days or registration date) Search function to find events instantly Elapsed time display (Years/Months/Days since the event) Flexible display: Switch to "Years & Days" for events more than a year away. β–  Premium Features (One-time Purchase) Zodiac & Constellation display Traditional Milestones (Yakudoshi/Longevity) Custom Theme Colors All basic features are available for free. * Screenshots are created with AI and may differ from the actual app.

Screenshots

Simple Life Log4 screens
Day4 screens

Verdict

The call

The clearest difference is in-app purchases: Simple Life Log at none against Day's 1. Simple Life Log also leads on device support (3 vs 1) and iOS requirement (13.0 vs 18.5). Day's advantage is ads (none vs shown). On price and update cadence there is nothing between them.

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

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

Both are free to download. Day sells 1 one-off in-app purchase. Simple Life Log asks for nothing beyond the download.

UpkeepUpdate frequency

Simple Life Log ships an update every 2 days, Day every 3 days. Both last shipped on October 31, 2026.

Scorecard4 real differences Β· 2 level
Simple Life Log versus Day: the parameters behind the verdict, then further details
ParameterSimple Life LogDay
PriceFreeFree
Update frequencyEvery 2 days β€” betterEvery 3 days
AdsYesNo β€” better
In-app purchasesNo β€” betterYes
DevicesiPhone, iPad, iPod β€” betteriPhone
Requires iOS13.0 β€” better18.5
Further details β€” not scored
Size30 MB2 MB
Age rating4+4+
DeveloperRYOJI NAKASHIMAKentaro Shirai

In-app purchases

None

Simple Life Log

No in-app purchases

1 purchases

Day

One-time1
  • Day-Count Premium$0.99

Questions

Is Simple Life Log free?
Simple Life Log is free to download, with no in-app purchases.
Is Day free?
Day is free to download, with in-app purchases available.
Do Simple Life Log or Day have ads?
Simple Life Log shows ads; Day does not.
Which is updated more often, Simple Life Log or Day?
Simple Life Log ships an update every 2 days, and Day every 3 days. Most recently, Simple Life Log was updated on October 31, 2026 and Day on October 31, 2026.

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