Comparison

First diary, Theme Diary vs Kyokun

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

Head to head
About

First diary, Theme Diary

This app helps you journal your daily experiences with themes, emotions, and media. Record events with photos, videos, and location, and organize them privately. Premium features offer unlimited entries and media.

Highlights
  • Themed event recording
  • Emotion and level tracking
  • Add photos and videos
  • Location information
  • Secret themes and events
  • Passcode and biometric protection
  • iCloud sync
Read full description

A themed diary app that allows you to write as many times as you like in a day. In addition to images, videos, and location information, you can also record your emotions at the time. Recommended as a first diary --- theme --- Write down events based on the theme. Since the theme is decided, there is no need to worry about what to write. theme example ·family ·child ·pets ·work ·study ·hobby ·gourmet ·trip ·love affair You can add accents with emojis and colors. You can change the display order by long-pressing the list. You can hide it by setting it to a secret theme. --- event --- Since it is written in short sentences (150 characters or less), it is easy to write and lasts a long time. You can also write in long sentences. (Premium feature) Since I write about events by theme, I don't have to worry about not having anything to write about. You can write as many times as you like in a day, so it can also be used to keep track of time. You can add up to 4 photos or videos. (Expandable with premium features) You can also add location information, which is useful for recording your food trips and travels. You can add tags and display events with the same tag across themes. You can hide it by setting it as a secret event. --- Photos and videos --- Photos and videos are loaded and displayed from the photo library. You can rest assured that the storage data capacity of the app will not increase even if you add many photos and videos. If you delete it from your photo library, you will no longer be able to view it from the app, but the thumbnail will remain. Photos taken from the app are saved in the photo library, so Please set permissions for full access to your photo library. --- Emotions and Levels --- You can record emotions (moods and feelings) and their levels in events. The same emotion can be expressed in different degrees, such as being happy or very happy. It is displayed in emojis and meters for easy viewing and understanding. --- Privacy --- You can hide themes and events by making them "secret." You can rest assured that it will not be seen by anyone who does not know how to display it. You can also hide the display method description itself. You can protect the entire app by setting a passcode. Your passcode is securely stored in your keychain. It also supports biometric authentication such as Face ID and Touch ID. --- iCloud --- Data is saved in iCloud, so there is no need for backup operations. You can sync with multiple devices such as iPhone and iPad. --- Premium Features --- - No character limit - No limit on number of images - Hide advertisements - Shows current weather and temperature Please see below for terms and conditions regarding subscription and use of paid features. 1. Privacy Policy: https://gsoft.jp/privacypolicy/ 2. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Kyokun

Features
Read full description

When a mistake at work or in everyday life stays on your mind, use Kyokun to record what happened and the lesson you want to remember. Write one part at a time: roughly when it happened, what happened, how you felt, and what you learned. You can add a possible cause and a next action, plus a photo or voice note for context. If it happens again, add another occurrence to the same lesson. Review the count and the individual entries instead of losing them across separate diary pages. On the Mountain Range Home screen, each lesson's mountain grows with its repeat count. Pin lessons you want to revisit. Search and filter your records, or place a lesson on your Home Screen with a widget. Recording and reviewing lessons are available free with ads. An optional one-time purchase removes ads. This is a place to reflect on your own experiences; it does not promise to prevent mistakes. Privacy Policy: https://kazusa703.github.io/privacy.html Terms of Use: https://kazusa703.github.io/terms.html Support: https://kazusa703.github.io/support.html

Screenshots

First diary, Theme Diary4 screens
Kyokun4 screens

Verdict

The call

The clearest difference is device support: First diary, Theme Diary at 3 against Kyokun's 1. First diary, Theme Diary also leads on iOS requirement (17.0 vs 26.2). On price, update cadence, ads and in-app purchases 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. First diary, Theme Diary sells 7 in-app purchases, starting at $0.99 per 2 months and Kyokun sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

First diary, Theme Diary ships an update every 3 weeks, Kyokun every 4 weeks. The most recent releases landed on October 18, 2026 and October 25, 2026 respectively.

Scorecard2 real differences · 6 level
First diary, Theme Diary versus Kyokun: the parameters behind the verdict, then further details
ParameterFirst diary, Theme DiaryKyokun
PriceFreeFree
Positive reviews100.0% of reviews—
Update frequencyEvery 3 weeks — betterEvery 4 weeks
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, Mac — betteriPhone
Requires iOS17.0 — better26.2
Further details — not scored
Size131 MB43 MB
Age rating4+4+
DeveloperG-SOFTatsuko imai

In-app purchases

7 purchases

First diary, Theme Diary

Subscriptions2
  • Show weather$0.992 Months
  • Hide ads$0.991 Month
One-time5
  • Number of images$1.99
  • Character limit$1.99
  • Show weather$3.99
Show 2 more
  • Hide ads (Unlimited)$9.99
  • Unlock passcode$19.99
1 purchases

Kyokun

One-time1
  • Remove Ads & Unlock All$4.99

Questions

Is First diary, Theme Diary free?
First diary, Theme Diary is free to download, with in-app purchases available.
Is Kyokun free?
Kyokun is free to download, with in-app purchases available.
Do First diary, Theme Diary or Kyokun have ads?
Both First diary, Theme Diary and Kyokun show ads.
Which is updated more often, First diary, Theme Diary or Kyokun?
First diary, Theme Diary ships an update every 3 weeks, and Kyokun every 4 weeks. Most recently, First diary, Theme Diary was updated on October 18, 2026 and Kyokun on October 25, 2026.

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