passNote vs PLOPI
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
passNote
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Exchange diaries are a traditional form of communication in Japan, where people share their daily experiences and thoughts through a notebook. Even today, they remain popular among young people, offering a slower and more meaningful alternative to social media and instant messaging. With this app, you can easily experience the charm of exchange diaries on your smartphone. Share your daily life, hobbies, and thoughts while getting to know someone little by little. Unlike short messages, exchange diaries help build deeper connections. By taking time to write and respond, you can learn about each other's values and perspectives and develop lasting relationships. You can also connect with people from around the world. Discover real daily life, culture, school, work, and traditions that cannot be fully understood through travel or social media alone. Exchange diaries are also a great way to learn languages. Built-in translation helps you communicate with confidence while naturally learning real expressions used by native speakers. Why not start a special exchange diary with someone, somewhere in the world?
PLOPI
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PLOPI is a private diary for two that can begin with one unexpected line, one invite, or one person you want to answer. Sometimes a few words stay with you before you know much about the person. Instead of disappearing in a fast chat, those words can become a slower diary you can read again later. Write about a scene from your way home. A small thought that reminded you of them. A thank-you you did not want to lose. The feeling of a day that a photo alone cannot hold. With PLOPI, a short note, a longer letter, a photo, or a sticker can become part of a diary that belongs to just the two of you. A DIARY FOR JUST THE TWO OF YOU Invite one person and start a diary together. Use it with a partner, someone you miss, a close friend, or someone far away, without needing to reply right away. SLOWER THAN CHAT, EASIER TO KEEP PLOPI is not built around instant replies. Write at your own pace, let the other person read at theirs, and keep the feelings you may want to revisit later. WRITE LIKE A LETTER Encouragement, everyday updates, gratitude, or a small love letter. PLOPI gives you a calm place to write what did not fit into a quick message. ADD PHOTOS AND STICKERS Make entries feel personal with photos and stickers. Even a short line can become a memory worth opening again. WHY PLOPI - Private diary for just the two of you - Letter-like entries for a partner or someone you miss - Made for couples, close friends, and long distance - Photos and stickers for more personal memories - A gentle alternative to fast chat - Feelings and memories you can read again - Free to start If you are looking for a diary app, couples journal, private letters, a friend diary, or a calm way to stay close across distance, start your first diary for two with PLOPI. Terms of Use : https://help.plo-pi.com/en/terms/2026-06-05-1
Screenshots
Verdict
The clearest difference is ads: passNote at none against PLOPI's shown. PLOPI's advantage is update cadence (every 2 days vs every 5 days) and iOS requirement (15.0 vs 18.0). On price, in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. passNote sells 1 in-app purchase, starting at $2.99 per month and PLOPI sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.
passNote ships an update every 5 days, PLOPI every 2 days. The most recent releases landed on September 17, 2026 and September 20, 2026 respectively.
| Parameter | passNote | PLOPI |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 days | Every 2 days β better |
| Ads | No β better | Yes |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 18.0 | 15.0 β better |
| Further details β not scored | ||
| Size | 80 MB | 58 MB |
| Age rating | 17+ | 17+ |
| Developer | Ryota Izumi | Beyond Imagine |
In-app purchases
passNote
- Premium Membership$2.991 Month
PLOPI
- PLOPI PASS1 Month trial$3.991 Month
- Standard Sticker Item$0.49









