3sec Diary vs MyDays
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
3sec Diary
Quickly log daily activities and feelings in just three seconds. Your entries are securely stored in your iPhone Calendar, ensuring data safety and easy access. This tool helps you preserve memories and makes research and sharing effortless.
- 3-second daily logging
- Calendar integration
- Secure data storage
- Easy research and sharing
- Memory preservation
Read full descriptionHide full description
This "3sec Diary” is not just a diary. You can input what you did, how you feel in this tool.It will take only 3 seconds!Your time will be saved. And you can leave it on your calendar on iPhone as long as you want. "3sec Diary “ data is not recorded on App on your iPhone.The data is recorded to your iPhone Calendar.You never miss your data when something wrong with this App. Researching ,synchronizing,sharing are so easy. This “3sec Diary” is not just a diary, but your memories.
MyDays
A simple journaling app designed for busy individuals to quickly record daily highs and lows. It features a minimalist interface, customizable reminders, and tools to analyze mood trends over time.
- Quick daily journaling
- Minimalistic and intuitive UI
- Daily reminder scheduling
- Mood trend analysis
- Daily stats viewing
Read full descriptionHide full description
MyDays is a journaling app for the busy individual. Only focus on the important stuff, quickly and easily enter the high and low of each day. Features: - Quick daily journaling - Minimalistic and intuitive UI - Easily schedule daily reminders - View and analyze mood trends with your daily stats
Screenshots
Verdict
The clearest difference is in-app purchases: MyDays at none against 3sec Diary's 1. MyDays also leads on ads (none vs shown) and review sentiment (86% vs 60%). On price, update cadence, device support 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. 3sec Diary sells 1 one-off in-app purchase. MyDays asks for nothing beyond the download.
3sec Diary ships an update every 26 months, MyDays every 30 months. The most recent releases landed on October 21, 2026 and October 24, 2026 respectively.
| Parameter | 3sec Diary | MyDays |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.6 (11 ratings) — better |
| Positive reviews | 60.0% of reviews | 85.7% of reviews — better |
| Number of ratings | — | 11 — better |
| Update frequency | Every 26 months — better | Every 30 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 12 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | KENJI KANEMOTO | Owen Davis-Bower |
Customer experience
3sec Diary
MyDays
In-app purchases
3sec Diary
- Eliminate Ads$0.99
MyDays
No in-app purchases
