Comparison

BSAC Member vs Dive Shearwater

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

Head to head
About

BSAC Member

Features
Read full description

BSAC Japanのアプリをインストールすれば、あなたが取得したBSACのCカードがス マートフォンの中に! もう増えたCカードがかさばる心配や、ダイビングに行く際にCカードを忘れる心配も ありません。 ぜひBSAC Japanのアプリを利用して、スマートなダイビングライフを送りましょう! 【利用対象ユーザー】 BSAC Japanに登録中のメンバーが対象となります。 【利用シーン】 ・アプリのデジタルCカードを表示することで、取得したランクの証明ができます。 ・過去に取得したランクの履歴を確認することができます。 【アプリを使ってできること】 ・取得したCカードアプリの一覧表示  *オフラインでも利用可能です。 ・BSAC Japanに登録されている情報の表示 【ご使用にあたって】 1.メンバーサイト(https://member.bsac.co.jp/)のログインID、パスワードにてログインできます。 2.メンバーサイトのログインID、パスワードがご不明の場合は、問い合わせフォーム(https://www.bsac.co.jp/contact/)よりお問合せください。

About

Dive Shearwater

This app helps divers log their underwater adventures with an intuitive interface. Track dive sites with interactive maps and automatically capture coordinates. It provides a streamlined experience for organizing dive history and planning future dives.

Highlights
  • Interactive dive maps
  • Automatic dive site coordinate capture
  • Streamlined user experience
  • Organized dive history
  • Gear setup refinement
  • Future dive planning tools
Features
Read full description

The world is your dive log. Built for simplicity and reliability, Dive Shearwater gives you the tools you need now and the foundation for even more powerful features in the future. More than just another dive log - With an improved user flow and streamlined experience, Dive Shearwater feels intuitive and easy to use. Keep your records organized and focus on the details that matter most to every diver. Track your adventures - Use the interactive dive maps to build your own personal guide of the places you’ve explored. Automatically capture dive site coordinates with the new Swift GPS transmitter on any air integrated Shearwater computer. Whether you're marking new dive sites, refining your gear setup, or simply keeping your dive history pristine, Dive Shearwater delivers a seamless, intuitive experience tailored for divers of all skill levels who value precision and adventure. Together, Shearwater dive computers and the Dive Shearwater app form a complete ecosystem—delivering precision in the water and clarity on land. Dive Shearwater builds on our core principles of being powerful, simple and reliable, while giving you the dive tools you need to track, reflect, and plan your next adventure with confidence.

Screenshots

BSAC Member4 screens
Dive Shearwater4 screens

Verdict

The call

The clearest difference is update cadence: BSAC Member at every 10 days against Dive Shearwater's every 4 weeks. 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

BSAC Member ships an update every 10 days, Dive Shearwater every 4 weeks. The most recent releases landed on October 27, 2026 and November 8, 2026 respectively.

Scorecard1 real difference · 7 level
BSAC Member versus Dive Shearwater: the parameters behind the verdict, then further details
ParameterBSAC MemberDive Shearwater
PriceFreeFree
Positive reviews—9.7% of reviews
Update frequencyEvery 10 days — betterEvery 4 weeks
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.0 — better15.1
Further details — not scored
Size49 MB107 MB
Age rating4+17+
DeveloperBSAC JapanShearwater Research

In-app purchases

None

BSAC Member

No in-app purchases

None

Dive Shearwater

No in-app purchases

Questions

Is BSAC Member free?
BSAC Member is free to download, with no in-app purchases.
Is Dive Shearwater free?
Dive Shearwater is free to download, with no in-app purchases.
Do BSAC Member or Dive Shearwater have ads?
Neither BSAC Member nor Dive Shearwater shows ads.
Which is updated more often, BSAC Member or Dive Shearwater?
BSAC Member ships an update every 10 days, and Dive Shearwater every 4 weeks. Most recently, BSAC Member was updated on October 27, 2026 and Dive Shearwater on November 8, 2026.

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