Three Seeds vs いいことみっけ 感謝と達成の3行日記
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Three Seeds
Read full descriptionHide full description
A gratitude journal that writes back. Every day, note 3 good things that happened. Once a day, AI reads them and replies with a few warm sentences about your day - not a score, not a summary. Small things count. "The morning coffee was great" is more than enough. Research suggests that keeping up this tiny habit can raise your sense of well-being (Seligman et al., 2005). No ads. No account. No tracking. Your entries stay on your device. ◆ Write 3 good things a day - Three simple fields — small things count, even one is fine - Mood tags and photo attachments - Gentle writing prompts that change every day ◆ A warm word from AI - Once a day, AI reads your three things and replies with warmth - Not a summary or a score — a companion who savors your words with you - Weekly and monthly AI reviews to look back on your patterns ◆ Watch your record grow - Streaks, mood charts, and a calendar of your entries - A word cloud of the things you write about most - "A year ago today" and "This day last month" cards ◆ Your data stays yours - Everything is stored on your device - Optional automatic backup to your own iCloud - No ads, no tracking SDKs - Export as text, Markdown, JSON, or shareable images ◆ Also in Japanese - The app follows your device language (English / Japanese) - AI replies in your language too Start planting three small seeds a day, and grow a record that is truly yours.
いいことみっけ 感謝と達成の3行日記
Read full descriptionHide full description
「いいことみっけ – CodeMedia」は、 1日5分で書ける、ポジティブになれる日記アプリです。 毎晩、この3つに答えるだけ。 ・きょうの感謝を3つ ・きょう達成できたこと ・一日の感想をひとこと 「毎晩、良かったことを3つ書き出す」習慣は、ポジティブ心理学の研究 (Seligman, 2005) で幸福度を高め、落ち込みをへらす効果が確かめられています。 ■ 三日坊主でも続けられる仕組み ・1つだけでも、ひとことでも保存OK ・ポジティブ貯金 — 休んでも絶対に減らない累計記録 ・書いた日が気分の色でぬられていくカレンダー ・翌朝リプレイ通知 — 夜書いた感謝を、翌朝もう一度お届け ・おまもりモード — しんどい日は、過去のじぶんの言葉に励ましてもらう ・書けない日はサジェストをタップで選ぶだけ ・目標ペースは毎日/週3回/週1回から選べます。毎日書かなくて大丈夫 ■ 安心して書ける場所 ・広告なし ・アカウント登録不要 ・日記データは端末内にのみ保存 ・Face ID / 生体認証ロック対応 ・全期間をCSV/JSONでエクスポート可能 ・ダークモード対応 余計な機能は入れていません。 1日の終わりに、いいことをみつけて、にっこりして眠るためのアプリです。 きょうの「いいこと」、みつけにいこう。
Screenshots
Verdict
The clearest difference is update cadence: Three Seeds at every 6 days against いいことみっけ 感謝と達成の3行日記's monthly. Three Seeds also leads on iOS requirement (13.0 vs 16.4). On price, ads, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Three Seeds ships an update every 6 days, いいことみっけ 感謝と達成の3行日記 monthly. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.
| Parameter | Three Seeds | いいことみっけ 感謝と達成の3行日記 |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 6 days — better | Monthly |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 13.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 38 MB | 44 MB |
| Age rating | 4+ | 4+ |
| Developer | Atsushi Matsunami | SHINYA TANIMOTO |
In-app purchases
Three Seeds
No in-app purchases
いいことみっけ 感謝と達成の3行日記
No in-app purchases








