GOKIGEN diary vs MyLetters.
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
GOKIGEN diary
Record your daily feelings with simple marks and optional messages. This app helps you track emotional patterns over time, offering insights into your mood trends. It also includes basic schedule management and passcode protection for privacy.
- Record daily feelings with simple icons
- Add optional text messages
- Track mood patterns over time
- Schedule management integration
- Passcode protection for privacy
- Searchable comment history
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GOKIGEN diary is to record your feeling like the diary. For a busy day, just mark your feeling. If you want, you can leave a message. (Note) This app is a feature-frozen version that will not be updated except for major bug fixes. We recommend that you migrate to "GOKIGEN Diary 2" which is compatible with the data. By registering you will also be used to schedule management. You may feel that every day is the same, but if you keep this diary, you may find something interesting when you think back. For example, You are always blue at the end of the month. You are likely to be happy during spring. You have been happy at certain day every year. etc. You can record the 3 levels of feeling by the following characters. Happy: (^o^) pink soso: (~.~) yellow not so happy: (T-T) blue The speech bubble shows that you leave the message on the day. If you want to keep it secret, you can set up the passcode. Instruction: change the month: swipe the view,tap the next month area or the previous month area record your feeling: tap the circle of the date display comment list: tap the table mark Search comment:inputing the search string -> tapping the [Search] button search next:without changing the search string -> tapping the [Search] button register/unregister/change the passcode: tap the key mark import the diary data: tap Setting icon -> [Import] export the diary data:tap Setting icon -> [Export]
MyLetters.
Schedule and send personalized letters to loved ones in advance. The app handles delivery on your chosen date and sends reminders for upcoming letters. You can also include images and videos with your messages.
- Schedule letters for future delivery
- Receive delivery reminders
- Attach images and videos
- Personalized letter writing
- Advance planning for loved ones
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You are now able to write letters for your loved ones in advance and we deliver them at your chosen date. We even send you email reminders when a letter is coming due to be delivered. You are also able to attach images and video. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.yaddy.org
Screenshots
Verdict
The clearest difference is review sentiment: MyLetters. at 100% against GOKIGEN diary's 18%. MyLetters. also leads on ads (none vs shown). GOKIGEN diary's advantage is price (Free vs $0.99) and update cadence (monthly vs every 42 months). On 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
GOKIGEN diary is free to download; MyLetters. costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
GOKIGEN diary ships an update monthly, MyLetters. every 42 months. The most recent releases landed on November 13, 2026 and November 12, 2026 respectively.
| Parameter | GOKIGEN diary | MyLetters. |
|---|---|---|
| Price | Free — better | $0.99 |
| Rating | — | 5.0 (2 ratings) — better |
| Positive reviews | 18.2% of reviews | 100.0% of reviews — better |
| Number of ratings | — | 2 — better |
| Update frequency | Monthly — better | Every 42 months |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported — better | Paid |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 9.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 6 MB | 26 MB |
| Age rating | 4+ | 4+ |
| Developer | Hitohana Kobo | Yaddy LLC |
Customer experience
GOKIGEN diary
MyLetters.
In-app purchases
GOKIGEN diary
No in-app purchases
MyLetters.
No in-app purchases









