Comparison

Necomi vs My Happy Diary

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Necomi

Features
Read full description

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。

About

My Happy Diary

Features
Read full description

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

Necomi4 screens
My Happy Diary4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

UpkeepUpdate frequency

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.

Scorecard1 real difference · 5 level
Necomi versus My Happy Diary: the parameters behind the verdict, then further details
ParameterNecomiMy Happy Diary
PriceFreeFree
Update frequencyEvery 2 monthsWeekly — better
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS14.0 — better15.1
Further details — not scored
Size19 MB47 MB
Age rating17+4+
Developerakikan LLCyuki sato

In-app purchases

1 purchases

Necomi

One-time1
  • プレミアム$0.99
1 purchases

My Happy Diary

Subscriptions1
  • プレミアムプラン(1ヶ月)14 Days trial$1.991 Month

Questions

Is Necomi free?
Necomi is free to download, with in-app purchases available.
Is My Happy Diary free?
My Happy Diary is free to download, with in-app purchases available.
Do Necomi or My Happy Diary have ads?
Neither Necomi nor My Happy Diary shows ads.
Which is updated more often, Necomi or My Happy Diary?
Necomi ships an update every 2 months, and My Happy Diary weekly. Most recently, Necomi was updated on October 27, 2026 and My Happy Diary on October 19, 2026.

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