ECHOZ vs PLOPI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ECHOZ
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【ECHOZとは】 ECHOZは、今この瞬間の気持ちを60秒で言葉にするアプリ。 1日1回、ランダムな通知が届いたら投稿。 写真ではなく、感情と言葉でつながります。 同じ気分を選んだ誰かの投稿と、あなたの言葉がEcho Chainとして繋がります。 【主な機能】 ◆ 1日1回・60秒投稿 ランダム通知で「今」を逃さない。 ◆ Mood(気分)選択 11種類の感情からその瞬間の気分を選ぶ。 ◆ Echo Chain 同じMoodの投稿が自動で連結。 見知らぬ誰かと共鳴する体験。 ◆ 縦書きカード 日本語の美しさを活かした縦書きデザイン。 【こんな人におすすめ】 ・SNSに疲れてしまった ・日記が続かない ・今の気持ちを言葉で残したい ・誰かと静かに繋がりたい 飾らない言葉で、今を残そう。 【サポート / Support】 ご質問・お問い合わせ: echoz.help@gmail.com 【利用規約 / Terms of Use】 https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ 【プライバシーポリシー / Privacy Policy】 https://hk-882355.github.io/echoz-support/privacy-policy.html
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 iOS requirement: PLOPI at 15.0 against ECHOZ's 17.0. On price, update cadence, ads and in-app purchases 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. ECHOZ sells 3 in-app purchases, 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.
ECHOZ ships an update every 3 days, PLOPI every 2 days. The most recent releases landed on September 26, 2026 and September 20, 2026 respectively.
| Parameter | ECHOZ | PLOPI |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 days | Every 2 days — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 17.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 19 MB | 58 MB |
| Age rating | 12+ | 17+ |
| Developer | hiroki kaneko | Beyond Imagine |
In-app purchases
ECHOZ
- Monthly Plan$2.991 Month
- Yearly Plan$29.991 Year
- Lifetime Plan$59.99
PLOPI
- PLOPI PASS1 Month trial$3.991 Month
- Standard Sticker Item$0.49








