# DEFA vs Blackjack Tracker

The clearest difference is in-app purchases: DEFA at none against Blackjack Tracker's 3. DEFA also leads on iOS requirement (12.0 vs 15.6). Blackjack Tracker's advantage is update cadence (fortnightly vs every 5 months). On price, ads and device support there is nothing between them.

Both are free to download. Blackjack Tracker sells 3 in-app purchases, starting at $7.99 per month. DEFA asks for nothing beyond the download.

DEFA ships an update every 5 months, Blackjack Tracker fortnightly. The most recent releases landed on September 24, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | DEFA | Blackjack Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/defa/id542334548/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Fortnightly** |
| Monetization | Free | — |
| Size | 53 MB | 59 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [DEFA AS](https://appshunter.io/developer/452232242) | [MUSTAFA BAKHSHI](https://appshunter.io/developer/6786010947) |

## What reviewers say

### DEFA

[App page](https://appshunter.io/ios/app/defa/id542334548)

Control DEFA vehicle and home heating, security, and alarm systems remotely. Monitor temperatures, battery voltage, and receive alerts for theft or speed limit breaches. Manage multiple heating zones and integrate with car alarms.

**Highlights:** Remote engine and interior heater control, Monitor battery voltage and temperature, GPS tracking and theft alerts, Burglar alarm notifications, Control up to 6 heating zones, Weather forecast display

**In-app purchases:** none


### Blackjack Tracker

[App page](https://appshunter.io/ios/app/blackjack-tracker-analytics/id6786010944)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $7.99 | per month |
| Pro 3 Months | $19.99 | per 3 months |
| Pro Yearly | $71.99 | per year |


## Frequently asked questions

### Is DEFA free?

DEFA is free to download, with no in-app purchases.

### Is Blackjack Tracker free?

Blackjack Tracker is free to download, with in-app purchases available.

### Do DEFA or Blackjack Tracker have ads?

Neither DEFA nor Blackjack Tracker shows ads.

### Which is updated more often, DEFA or Blackjack Tracker?

DEFA ships an update every 5 months, and Blackjack Tracker fortnightly. Most recently, DEFA was updated on September 24, 2026 and Blackjack Tracker on October 3, 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.*