Comparison

Dayji vs NagTag

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

Head to head
About

Dayji

This app helps you record your daily thoughts and memories with features like monthly summaries, photo galleries, and customizable themes. It offers iCloud synchronization and CSV export for easy data management and access across devices.

Highlights
  • Monthly summary memos
  • Photo gallery per day
  • iCloud backup and sync
  • CSV export
  • Password lock
  • Customizable themes and font size
Read full description

A simple diary app that allows you to view entries on a monthly basis. It supports synchronization with iCloud and allows you to export your diary entries in CSV format. ■ Two selectable display styles: List View and Monthly View List View displays entries in a list format, showing only the dates on which entries were written. Monthly View displays all dates in advance. You can choose the display method that suits you best. ■ Ability to write summary memos for each month This feature allows you to easily reflect on what you have been doing. It also helps you remember what happened in a particular month when looking back. ■ Favorites feature You can easily access important diary entries and quickly retrieve the necessary information. ■ Photo gallery for each day's captured photos You can easily browse photos taken on specific dates, enhancing your memory of past events. Even when writing diary entries at a later date, it will be easier to recall the events of that day. Additionally, you can add photos without manual effort, making diary writing stress-free. ■ Visual division by week for easy viewing Similar to how calendars are divided into weeks, this app also provides visual divisions for each week. ■ Easily identify days without diary entries to prevent forgetting The app displays the number of diary entries for each month, encouraging you to write a diary entry every day. It helps maintain the habit of writing a diary. ■ Write diary entries in plain text You can write diary entries in plain text, freeing yourself from the hassle of formatting text. ■ Character counter to track the number of words A character counter allows you to quickly see how much you have written, helping you keep track of your progress. ■ Supports backup in CSV format You can back up your diary entries and easily store the data externally. ■ Compatible with Mac for editing and viewing on any device Since it is also compatible with Mac, you can edit your diary entries on any device that suits your convenience. ■ Customizable theme colors You can change the theme colors to your liking, selecting colors that match your preferences. ■ Adjustable font size You can change the font size according to your preference. If the text is too small or too large to read comfortably, you can adjust it to a size that suits you. ■ Backup and synchronization across devices using iCloud You can back up your diary entries using iCloud, eliminating the worry of data loss. It also allows sharing and editing of entries across different devices. ■ Lock the app with a password You can lock the app with a password, ensuring the security of your diary.

About

NagTag

Features
Read full description

Create a reminder in a fraction of a second: Snap a pic and we’ll pop up a notification every half hour to make sure you don't forget. Perfect if you've left something on the stove or need to remember to let the dog back in. How does it work? 1. Snap a pic of what you need to remember 2. Get a notification every half hour for the next ten hours to make sure you don't forget it 3. Dismiss the nag notification when you're done

Screenshots

Dayji4 screens
NagTag4 screens

Verdict

The call

The clearest difference is update cadence: Dayji at every 2 months against NagTag's every 19 months. NagTag's advantage is iOS requirement (13.0 vs 26.0). On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Dayji ships an update every 2 months, NagTag every 19 months. Both last shipped on October 21, 2026.

Scorecard2 real differences · 7 level
Dayji versus NagTag: the parameters behind the verdict, then further details
ParameterDayjiNagTag
PriceFreeFree
Rating4.1 (8 ratings) — better—
Number of ratings8 — better—
Update frequencyEvery 2 months — betterEvery 19 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, Mac — betteriPhone, iPod
Requires iOS26.013.0 — better
Further details — not scored
Size2 MB14 MB
Age rating4+4+
DeveloperDaichi KatoKOALABRAIN LTD

In-app purchases

None

Dayji

No in-app purchases

None

NagTag

No in-app purchases

Questions

Is Dayji free?
Dayji is free to download, with no in-app purchases.
Is NagTag free?
NagTag is free to download, with no in-app purchases.
Do Dayji or NagTag have ads?
Neither Dayji nor NagTag shows ads.
Which is updated more often, Dayji or NagTag?
Dayji ships an update every 2 months, and NagTag every 19 months. Most recently, Dayji was updated on October 21, 2026 and NagTag on October 21, 2026.

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