Comparison

DIVE DIWA vs 海之家課程 Sea Dynamics Course

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

Head to head
About

DIVE DIWA

Features
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DIWA (Diving Instructor World Association) is an international organization that provides training and certification for scuba diving instructors and recreational divers. DIWA offers a range of courses, from beginner to advanced levels, and focuses on providing high-quality training that prioritizes safety, environmental conservation, and fun.

About

海之家課程 Sea Dynamics Course

Features
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We provides Chinese or English of Pleasure Vessel Operator Certificate Grade 2 courses. All courses content fit with our professional text book and always keep update content of courses. We use computer animations and efficient teaching methods to help students learning during lessons. Our company updates the mock questions regularly for our students' reference and using computer animations to explain EACH question. You may purchase subscription through an In-App Purchase. * This APP provides below subscriptions * Operator Grade 2 Part A, English, 2 months, HKD3000. * Operator Grade 2 Part B, English, 2 months, HKD3000. * Hong Kong Pleasure Vessel Operator Certificate Local Knowledge, English, 3 Months, HKD3000. * Operator Grade 2 Part A, Cantonese, 2 months, HKD3000. * Operator Grade 2 Part B, Cantonese, 2 months, HKD3000. • Your subscription will be charged to your iTunes account at confirmation of purchase. • Subscription may not be cancelled. • Privacy policy and terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula

Screenshots

DIVE DIWA3 screens
海之家課程 Sea Dynamics Course4 screens

Verdict

The call

The clearest difference is in-app purchases: DIVE DIWA at none against 海之家課程 Sea Dynamics Course's 7. On price, update cadence, ads 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. 海之家課程 Sea Dynamics Course sells 7 one-off in-app purchases. DIVE DIWA asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 8 months. Both last shipped on November 3, 2026.

Scorecard1 real difference · 5 level
DIVE DIWA versus 海之家課程 Sea Dynamics Course: the parameters behind the verdict, then further details
ParameterDIVE DIWA海之家課程 Sea Dynamics Course
PriceFreeFree
Update frequencyEvery 8 monthsEvery 8 months
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS13.012.0 — better
Further details — not scored
Size70 MB40 MB
Age rating4+4+
DeveloperDIWA Holding LimitedSea Dynamics

In-app purchases

None

DIVE DIWA

No in-app purchases

7 purchases

海之家課程 Sea Dynamics Course

One-time7
  • Local Knowledge, EN, 3 Months$399.99
  • Grade 2A,English, 2 months$399.99
  • Grade 2B,English, 2 months$399.99
Show 4 more
  • 二級操作人甲部,粵語繁體, 二個月$399.99
  • 二級操作人乙部,粵語繁體, 二個月$399.99
  • Grade 2 Part A&B, EN, 3 months$799.99
  • 二級操作人(甲部+乙部), 粵語繁體, 3個月$799.99

Questions

Is DIVE DIWA free?
DIVE DIWA is free to download, with no in-app purchases.
Is 海之家課程 Sea Dynamics Course free?
海之家課程 Sea Dynamics Course is free to download, with in-app purchases available.
Do DIVE DIWA or 海之家課程 Sea Dynamics Course have ads?
Neither DIVE DIWA nor 海之家課程 Sea Dynamics Course shows ads.
Which is updated more often, DIVE DIWA or 海之家課程 Sea Dynamics Course?
DIVE DIWA ships an update every 8 months, and 海之家課程 Sea Dynamics Course every 8 months. Most recently, DIVE DIWA was updated on November 3, 2026 and 海之家課程 Sea Dynamics Course on November 3, 2026.

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