# Basic Strategy vs Dive Vault & Maintenance

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.

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.

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.

## The numbers

| Metric | Basic Strategy | Dive Vault & Maintenance |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Fortnightly** |
| Monetization | Free with in-app purchases | — |
| Size | 2 MB | 54 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Felix Parey](https://appshunter.io/developer/1732259488) | [Jennifer Cooper](https://appshunter.io/developer/6785341592) |

## What reviewers say

### Basic Strategy

[App page](https://appshunter.io/ios/app/basic-strategy-blackjack/id6744754663)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Card Counting Mode | $3.99 | one-time |


### Dive Vault & Maintenance

[App page](https://appshunter.io/ios/app/dive-vault-and-maintenance/id6785341590)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Version | $4.99 | one-time |


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*