Comparison

Shared Diary vs Re

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

Head to head
About

Shared Diary

Features
Read full description

[Overview] This is a diary app that lets you share your days with people you care about. Here are some ways you can use it: * Jot down your thoughts and feelings as a personal diary * Share your daily life with close friends or your partner * Talk about your day with your child * Use it with your spouse to share little things—like gratitude, happy moments, or updates about the kids * Use it in a small team to keep track of daily work or share reports Once you get into the habit of writing a diary, you start noticing more things around you. It helps you become more aware of the little joys in everyday life, and it also strengthens your ability to express your thoughts in words. Being able to put your feelings and ideas into words boosts your communication skills, which can really help in your relationships—at school, work, or at home. If reading this made you think, "Maybe I’ll give diary writing a try," we’re happy to hear it. Even writing just 20 or 30 characters a day is totally fine. And honestly, you don’t even need to use this app—we just hope it encourages you to start. [Recommended for people who] * Want a simple, easy-to-use diary app * Want to build a daily writing habit * Feel shy about expressing feelings out loud * Want to do a shared/partner diary * Don’t want to exchange LINE but still want a casual way to communicate in text Term of service(EULA): https://originate-aster.co.jp/shared-diary/terms privacy policy: https://originate-aster.co.jp/privacy-policy/

About

Re

Features
Read full description

Re:Diary(リ・ダイアリー)は、懐かしくて温かい「交換日記」の体験をスマートフォンで再現したアプリです。 タイムラインを流れるSNSではなく、身近な人との「順番に書く」という特別な繋がりを楽しみませんか? 【主な機能】 デジタル交換日記: 仲の良い友達、恋人、家族とグループを作って、順番に日記を回しましょう。 自由なデコレーション: 豊富な手書きペン(ミルキーカラー)、デコスタンプ、写真スタンプで、あなたらしく日記を彩れます。 リアルタイム通知: ノートが自分のところに回ってきたら通知でお知らせ。待つ時間もワクワクします。 リアクションとコメント: 日記に対して可愛い絵文字でリアクションしたり、コメントで会話を盛り上げられます。 選べるテーマ: アプリ全体のデザインを、あなたの好みの雰囲気(レトロ、丸文字、セリフ体など)に着せ替え可能です。 【こんな方におすすめ】 仲の良い友達と、もっと深い思い出を残したい 恋人と二人だけの交換日記で絆を深めたい 家族の日常や子供の成長を楽しく記録・共有したい 手書きの温もりを感じるデジタルライフを楽しみたい 「次、書くの楽しみ!」 そんな温かい毎日が、Re:Diaryから始まります。

Screenshots

Shared Diary4 screens
Re4 screens

Verdict

The call

The clearest difference is in-app purchases: Re at none against Shared Diary's 1. Re also leads on update cadence (weekly vs fortnightly). On price, ads, device support and iOS requirement 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. Shared Diary sells 1 in-app purchase, starting at $2.99 per month. Re asks for nothing beyond the download.

UpkeepUpdate frequency

Shared Diary ships an update fortnightly, Re weekly. The most recent releases landed on September 24, 2026 and September 13, 2026 respectively.

Scorecard2 real differences · 4 level
Shared Diary versus Re: the parameters behind the verdict, then further details
ParameterShared DiaryRe
PriceFreeFree
Update frequencyFortnightlyWeekly — better
AdsYesYes
In-app purchasesYesNo — better
DevicesiPhoneiPhone, iPad — better
Requires iOS16.0 — better17.0
Further details — not scored
Size41 MB19 MB
Age rating4+4+
DeveloperOriginate Aster, Inc.CHIHIRO AKAMA

In-app purchases

1 purchases

Shared Diary

Subscriptions1
  • Proプラン(1か月間)$2.991 Month
None

Re

No in-app purchases

Questions

Is Shared Diary free?
Shared Diary is free to download, with in-app purchases available.
Is Re free?
Re is free to download, with no in-app purchases.
Do Shared Diary or Re have ads?
Both Shared Diary and Re show ads.
Which is updated more often, Shared Diary or Re?
Shared Diary ships an update fortnightly, and Re weekly. Most recently, Shared Diary was updated on September 24, 2026 and Re on September 13, 2026.

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