# DEFA vs Trener123

The clearest difference is in-app purchases: DEFA at none against Trener123's 3. DEFA also leads on iOS requirement (12.0 vs 15.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Trener123 sells 3 in-app purchases, starting at $2.99 per month. DEFA asks for nothing beyond the download.

DEFA ships an update every 5 months, Trener123 every 3 months. The most recent releases landed on October 10, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | DEFA | Trener123 |
| --- | --- | --- |
| 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 | **Every 3 months** |
| Monetization | Free | — |
| Size | 53 MB | 55 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [DEFA AS](https://appshunter.io/developer/452232242) | [Utviklingsselskapet Sylvia AS](https://appshunter.io/developer/1773811668) |

## 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


### Trener123

[App page](https://appshunter.io/ios/app/trener123/id6736915319)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full access | $2.99 | per month |
| Full access - Family | $3.99 | per month |
| Full access | $29.99 | per year |


## Frequently asked questions

### Is DEFA free?

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

### Is Trener123 free?

Trener123 is free to download, with in-app purchases available.

### Do DEFA or Trener123 have ads?

Neither DEFA nor Trener123 shows ads.

### Which is updated more often, DEFA or Trener123?

DEFA ships an update every 5 months, and Trener123 every 3 months. Most recently, DEFA was updated on October 10, 2026 and Trener123 on October 20, 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.*