Comparison

Nadograe vs うみびん

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

Head to head
About

Nadograe

Features
Read full description

Nadograe is a place to set down what's on your mind. Share a story and others reply with a “me too.” Wherever you live and whatever language you speak, you can connect with people around the world. • You choose the reply you want Just listening, other views, or advice — the writer decides. • Pseudonyms only Real names are never shown. For adults 18 and over. • Across languages Automatic translation lets you read and reply across languages, and the original is always one tap away. • Replies come from real people AI is only used for translation, safety notices and reply suggestions. Nadograe is not a substitute for professional medical care. If you are in danger right now, call your local emergency number. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://nadograe.com/privacy

About

うみびん

Features
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「うみびん」は、ネットの海にボトルメールを流す、ゆるいメッセージアプリです。 誰に届くか分からない。いつ届くか分からない。海は気まぐれです。 あなたのメッセージは、どこかの誰かのもとに流れ着きます。 届いたボトルを開いて読んだら、返事を書いてもいいし、そっと海に還してもいい。 ■ 特徴 ・会員登録なし。開いたらすぐ使えます ・メッセージを書いて「放つ」だけのシンプル操作 ・1日数回、誰かのボトルメールが流れ着きます ・レアな称号やメダルを集める楽しみも ・「未来へ」で自分だけのタイムカプセルとしても使えます 個人情報の入力は不要。あなたが何を書くかだけで繋がる、ちょっと不思議なコミュニケーションです。

Screenshots

Nadograe4 screens
うみびん4 screens

Verdict

The call

The clearest difference is in-app purchases: うみびん at none against Nadograe's 2. うみびん also leads on update cadence (daily vs weekly). Nadograe's advantage is ads (none vs shown). On price, 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. Nadograe sells 2 in-app purchases, starting at $3.99 per month. うみびん asks for nothing beyond the download.

UpkeepUpdate frequency

Nadograe ships an update weekly, うみびん daily. The most recent releases landed on October 28, 2026 and October 8, 2026 respectively.

Scorecard3 real differences · 3 level
Nadograe versus うみびん: the parameters behind the verdict, then further details
ParameterNadograeうみびん
PriceFreeFree
Update frequencyWeeklyDaily — better
AdsNo — betterYes
In-app purchasesYesNo — better
DevicesiPhoneiPhone, iPad — better
Requires iOS16.0 — better17.6
Further details — not scored
Size0 MB100 MB
Age rating17+4+
DeveloperLEE CHANGMINAkito Ikeshita

In-app purchases

2 purchases

Nadograe

Subscriptions2
  • nadograe+ basic$3.991 Month
  • nadograe+ pro$6.991 Month
None

うみびん

No in-app purchases

Questions

Is Nadograe free?
Nadograe is free to download, with in-app purchases available.
Is うみびん free?
うみびん is free to download, with no in-app purchases.
Do Nadograe or うみびん have ads?
うみびん shows ads; Nadograe does not.
Which is updated more often, Nadograe or うみびん?
Nadograe ships an update weekly, and うみびん daily. Most recently, Nadograe was updated on October 28, 2026 and うみびん on October 8, 2026.

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