Comparison

Happy You vs First diary, Theme Diary

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

Head to head
About

Happy You

This app helps young people improve their mental health by tracking daily moods and sleep patterns. Users can identify trends, explore contributing factors, and access tools like relaxation techniques and affirmations. It can also be used by mentors to monitor client well-being.

Highlights
  • Daily mood logging with emojis
  • Sleep pattern tracking
  • Identify mood patterns over time
  • Access to relaxation techniques
  • Positive affirmations
  • Mentor client tracking
Features
Read full description

Happy You is designed specifically for young people who are looking to improve their mental health. Using emojis, you can easily log your mood on a daily basis and see patterns emerge over time. For example, you may notice that you are feeling sad more often on Tuesdays. You can then delve deeper and look at the reasons why you are feeling this way, and work on finding ways to improve your mental health on those days. In addition to tracking your mood, you can also use the app to track your sleep, as a good night's rest is essential for overall well-being. We also provide a variety of activities and tools to help you manage your mental health, including relaxation techniques and positive affirmations. Mentors can also use the app with their clients, asking them to track their moods and other relevant information for a set period of time in order to better understand what may be impacting their mental health. Overall, our app is a valuable resource for anyone looking to prioritize their mental health and find ways to improve their well-being.

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/

Screenshots

Happy You4 screens
First diary, Theme Diary4 screens

Verdict

The call

The clearest difference is in-app purchases: Happy You at none against First diary, Theme Diary's 7. Happy You also leads on ads (none vs shown) and update cadence (daily vs every 3 weeks). First diary, Theme Diary's advantage is device support (3 vs 1). On price 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. First diary, Theme Diary sells 7 in-app purchases, starting at $0.99 per 2 months. Happy You asks for nothing beyond the download.

UpkeepUpdate frequency

Happy You ships an update daily, First diary, Theme Diary every 3 weeks. The most recent releases landed on October 16, 2026 and October 2, 2026 respectively.

Scorecard5 real differences · 3 level
Happy You versus First diary, Theme Diary: the parameters behind the verdict, then further details
ParameterHappy YouFirst diary, Theme Diary
PriceFreeFree
Positive reviews—100.0% of reviews
Update frequencyDaily — betterEvery 3 weeks
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhoneiPhone, iPad, Mac — better
Requires iOS16.0 — better17.0
Further details — not scored
Size8 MB131 MB
Age rating4+4+
DeveloperPhil TrevorG-SOFT

In-app purchases

None

Happy You

No 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

Questions

Is Happy You free?
Happy You is free to download, with no in-app purchases.
Is First diary, Theme Diary free?
First diary, Theme Diary is free to download, with in-app purchases available.
Do Happy You or First diary, Theme Diary have ads?
First diary, Theme Diary shows ads; Happy You does not.
Which is updated more often, Happy You or First diary, Theme Diary?
Happy You ships an update daily, and First diary, Theme Diary every 3 weeks. Most recently, Happy You was updated on October 16, 2026 and First diary, Theme Diary on October 2, 2026.

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