First diary, Theme Diary vs AI絵日記
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Themed event recording
- Emotion and level tracking
- Add photos and videos
- Location information
- Secret themes and events
- Passcode and biometric protection
- iCloud sync
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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/
AI絵日記
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このアプリは、文章で日記を書くとAIがその内容に合ったイラストを自動で生成してくれる、新しい絵日記アプリです。 毎日のちょっとした出来事や気持ちを文字に残すだけで、自分だけのストーリーが絵として形になります。 ・AIが日記を読み取って、イメージに合ったイラストを自動生成 ・毎日の記録にぴったりなシンプルなデザイン ・過去の日記もカレンダーで振り返りやすい ・保存はローカル、プライバシーも安心 今日のこと、今の気持ちを、文字と絵で記録してみませんか?
Screenshots
Verdict
The clearest difference is ads: AI絵日記 at none against First diary, Theme Diary's shown. First diary, Theme Diary's advantage is device support (3 vs 1). On price, update cadence, in-app purchases 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
Both are free to download. First diary, Theme Diary sells 7 in-app purchases, starting at $0.99 per 2 months and AI絵日記 sells 3 in-app purchases, starting at $0.49 per month. Whichever you choose, the download price is not the number that matters.
Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 2, 2026 and September 17, 2026 respectively.
| Parameter | First diary, Theme Diary | AI絵日記 |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, Mac — better | iPhone |
| Requires iOS | 17.0 — better | 18.2 |
| Further details — not scored | ||
| Size | 131 MB | 20 MB |
| Age rating | 4+ | 4+ |
| Developer | G-SOFT | Koudai Kudou |
In-app purchases
First diary, Theme Diary
- Show weather$0.992 Months
- Hide ads$0.991 Month
- Number of images$1.99
- Character limit$1.99
- Show weather$3.99
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- Hide ads (Unlimited)$9.99
- Unlock passcode$19.99
AI絵日記
- フルバージョンへのアップデート$0.491 Month
- Pro版へのアップグレード$0.99
- Pro版へのアップグレード$2.99









