3sec Diary vs AI Note before forgetting
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.
AI Note before forgetting
Capture your thoughts and ideas with this app. It allows you to save notes, add location details like address and weather, and even attach photos and videos. AI features can help generate ideas, summarize, and proofread your entries.
- AI-powered idea generation
- Note summarization and proofreading
- Automatic location data (date, time, address, weather)
- Add photos and videos to notes
- Folder organization
- Search functionality
- Note sharing
Read full descriptionHide full description
You may forget what you have come up with over time. In such a case, let's save what you came up with with this app. Copy your current location information If you tap the menu button while entering a note You can copy the following current location information and paste it into a memo. Date, time, address, weather, temperature, humidity, barometric pressure With AI, you can generate ideas, summarize, and proofread based on your notes. Added a function that can reproduce the display position of the note Add photos and videos How to use -Add note Tap the \"+\" button to enter a new memo. -See note Tap the desired memo from the memo list to display the memo. You can also modify or update your notes on this page. -Current location information If you tap the menu button while entering a memo, you can copy the following current location information and paste it into the memo. date, time, address, weather, temperature, humidity, pressure. -Add folder Create a folder to save the memo by tapping the \"Add folder\" button. -Search You can search for memos by character string from all saved memos by tapping the \"Search\" button. -Edit When you tap the \"Edit\" button, the \"Delete\" button will appear in the folder list and memo list, and you can delete the desired memo or folder. -Memo list sort Tap the \"Sort\" button to change the sort of memo list in the order of creation date/time, update date/time, and character string. -Share notes You can share the contents of the memo by e-mail etc. by tapping the action button on the page where the memo is opened.
Screenshots
Verdict
The clearest difference is in-app purchases: AI Note before forgetting at none against 3sec Diary's 1. AI Note before forgetting also leads on update cadence (every 2 months vs every 26 months). 3sec Diary's advantage is iOS requirement (12.0 vs 14.0). On price, ads 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
Both are free to download. 3sec Diary sells 1 one-off in-app purchase. AI Note before forgetting asks for nothing beyond the download.
3sec Diary ships an update every 26 months, AI Note before forgetting every 2 months. The most recent releases landed on July 4, 2026 and June 22, 2026 respectively.
| Parameter | 3sec Diary | AI Note before forgetting |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.4 (10 ratings) — better |
| Positive reviews | 60.0% of reviews | — |
| Number of ratings | — | 10 — better |
| Update frequency | Every 26 months | Every 2 months — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Ad-supported — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 14.0 |
| Further details — not scored | ||
| Size | 12 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | KENJI KANEMOTO | Hideshi Otsuru |
Customer experience
3sec Diary
AI Note before forgetting
In-app purchases
3sec Diary
- Eliminate Ads$0.99
AI Note before forgetting
No in-app purchases
Questions
Is 3sec Diary free?
Is AI Note before forgetting free?
Do 3sec Diary or AI Note before forgetting have ads?
Which is updated more often, 3sec Diary or AI Note before forgetting?
Other comparisons
