Comparison

Basic Strategy vs Dive Vault & Maintenance

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

Head to head
About

Basic Strategy

This app acts as your personal Blackjack coach, providing instant, statistically optimal moves based on your hand and the dealer's upcard. Customize game rules and even utilize a card counting mode to play smarter and with more confidence.

Highlights
  • Instant basic strategy advice
  • Customizable game rules
  • Card counting mode
  • Offline availability
  • Simple interface
Read full description

Stop Guessing at the Blackjack Table! Play Smarter, Not Harder. Ever felt that knot in your stomach at the Blackjack table? Staring at your hand, the dealer's upcard... Hit? Stand? Double Down? The pressure is real, and one wrong move can cost you. Introducing Basic Strategy: Blackjack, your personal Blackjack Basic Strategy coach, designed to give you the confidence to make the statistically best decision, every single time. Picture this: You are playing Blackjack, you've got a tricky hand like a 16 against a dealer's 10, and you don’t know what you should do. Do you risk busting or hope the dealer busts? Forget the gut feelings and anxiety! With Basic Strategy: Blackjack, instantly know the optimal Basic Strategy move recommended by probability professionals. Turn uncertainty into calculated confidence and approach the table like a seasoned player. Features: ● Instant Basic Strategy Advice: Input the cards dealt to you and the dealer's up card and the app will tell you the exact move to do to have the highest chance of winning. ● Game Customization: Adjust the app to take into consideration the rules of YOUR Blackjack game, enabling/disabling surrender, double after split or whether the dealer has to hit or stand on a soft 17. ● Card Counting Mode: Count cards the easy way without having to memorize anything. Just log the cards and the suggestions will update based on the count. (Premium Feature) ● Offline availability: Access all the functionality of the app offline without any compromises ● Ease of use: Simplicity over complexity. You can start using the app right away without needing much setup. This app provides blackjack strategy advice based on standard basic strategy charts. It is intended for educational and entertainment purposes only. The app does not guarantee success or winnings. Use of this app is at your own risk. The developer is not responsible for any financial losses incurred.

About

Dive Vault & Maintenance

Read full description

Track your gear and the maintenance for said gear. Download your logs and manage logs for multiple dives. Track divers, their certifications, and their insurance. Keep track of the dive shops you use and the prices of their services. Keep a journal of your trip so you can know exactly how much the trip cost you, any tips or tricks to remember for next time, and what the name of the restaurant you at at was.

Screenshots

Basic Strategy4 screens
Dive Vault & Maintenance4 screens

Verdict

The call

The clearest difference is update cadence: Dive Vault & Maintenance at fortnightly against Basic Strategy's every 5 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Basic Strategy sells 1 one-off in-app purchase and Dive Vault & Maintenance sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Basic Strategy ships an update every 5 weeks, Dive Vault & Maintenance fortnightly. The most recent releases landed on October 1, 2026 and October 9, 2026 respectively.

Scorecard1 real difference Β· 7 level
Basic Strategy versus Dive Vault & Maintenance: the parameters behind the verdict, then further details
ParameterBasic StrategyDive Vault & Maintenance
PriceFreeFree
Positive reviews100.0% of reviewsβ€”
Update frequencyEvery 5 weeksFortnightly β€” better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesβ€”
DevicesiPhone, iPadiPhone, iPad, Mac β€” better
Requires iOS17.017.0
Further details β€” not scored
Size2 MB54 MB
Age rating4+4+
DeveloperFelix PareyJennifer Cooper

In-app purchases

1 purchases

Basic Strategy

One-time1
  • Card Counting Mode$3.99
1 purchases

Dive Vault & Maintenance

One-time1
  • Full Version$4.99

Questions

Is Basic Strategy free?
Basic Strategy is free to download, with in-app purchases available.
Is Dive Vault & Maintenance free?
Dive Vault & Maintenance is free to download, with in-app purchases available.
Do Basic Strategy or Dive Vault & Maintenance have ads?
Neither Basic Strategy nor Dive Vault & Maintenance shows ads.
Which is updated more often, Basic Strategy or Dive Vault & Maintenance?
Basic Strategy ships an update every 5 weeks, and Dive Vault & Maintenance fortnightly. Most recently, Basic Strategy was updated on October 1, 2026 and Dive Vault & Maintenance on October 9, 2026.

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