Necomi vs My Happy Diary
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Necomi
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寝る前だけどついついスマホを見て、目が冴えてしまう・・・ Necomiはそういった方の慢性的な寝不足を防ぐための寝落ちアプリです。 ▶超ダークモード iPhoneの明るさ設定とは独立して、このアプリ単体での明るさ設定ができます。 また、iPhoneで明るさを最小にした場合よりも更に暗い画面設定が可能になっております。 このアプリで明るさを最小にした場合、ほぼ完全に真っ暗な画面となります。 ▶寝落ち検知スリープ 動画サイトではiPhoneが水平になったことを検知して再生が止まり、その後しばらくしてスリープします。 寝かけたところでいきなり大音量のサウンドが流れ始めて目が覚めた!といった事が起こりません。 通常の動画再生アプリと異なり、動画を夜通し再生し続けてバッテリーが切れる心配もありません。 ▶寝落ち記録 寝落ちた次の日、何をどこまで見ていたか思い出せないことがあります。 記録をたどれば簡単に続きから見ることができます。 ▶横向きロック ごろごろ寝返りしても横画面の状態がキープされる機能です。 横向きロックはiPhoneのみ対応です。 ※Amazon Prime Video, Netflixはこのアプリ上では再生できません。各サービスの専用アプリをお使いください。
My Happy Diary
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Find and gently record the “small happiness” in your everyday life In the middle of busy days, why not pause for just a moment? Happy Diary – My Happy Diary is a journaling app that helps you nurture a positive mindset by writing down one “happy moment” each day. Simply save a photo and a short note to easily capture moments that bring you a sense of calm and warmth. Key Features Simple and easy-to-use design Look back on past memories with a calendar view Record your “happiness of the day” with photos Weekly and monthly AI-powered analysis reports Because it only takes one minute a day, it’s easy to keep going. By writing things down, you’ll start to notice more moments where you think, “Today wasn’t so bad after all.” Little by little, a more positive mindset will return. Recommended for people who: Want to relieve daily stress Want to regain a positive outlook Are looking for a journal app that’s easy to maintain Want to keep memories together with photos Wishing you a happy day, today and every day By finding small moments of happiness, everyday life becomes a little kinder. With Happy Diary – My Happy Diary, take time to care for your own heart. Terms of Service: https://yuki-sato-95.github.io/happy-diary-doc/terms.html
Screenshots
Verdict
The clearest difference is update cadence: My Happy Diary at weekly against Necomi's every 2 months. 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. Necomi sells 1 one-off in-app purchase and My Happy Diary sells 1 in-app purchase, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.
Necomi ships an update every 2 months, My Happy Diary weekly. The most recent releases landed on October 27, 2026 and October 19, 2026 respectively.
| Parameter | Necomi | My Happy Diary |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | Weekly — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 14.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 19 MB | 47 MB |
| Age rating | 17+ | 4+ |
| Developer | akikan LLC | yuki sato |
In-app purchases
Necomi
- プレミアム$0.99
My Happy Diary
- プレミアムプラン(1ヶ月)14 Days trial$1.991 Month









