# DavidLian SW vs JDK

The clearest difference is ads: DavidLian SW at none against JDK's shown. DavidLian SW also leads on update cadence (every 3 months vs every 13 months) and iOS requirement (12.0 vs 15.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

DavidLian SW ships an update every 3 months, JDK every 13 months. Both last shipped on October 12, 2026.

## The numbers

| Metric | DavidLian SW | JDK |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 18.2% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 3 months** | Every 13 months |
| Monetization | Free | — |
| Size | 633 MB | 59 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [LUCA E PAOLO BARRA SRL](https://appshunter.io/developer/1589736763) | [OVERCLOUDS SRL](https://appshunter.io/developer/1851998468) |

## What reviewers say

### DavidLian SW

[App page](https://appshunter.io/ios/app/davidlian-sw/id1589736761)

This app syncs data from a smartwatch, displaying steps, calories, heart rate, and sleep. It also delivers notifications to your watch and allows for configuration of alarms, reminders, and weather.

**Highlights:** Sync smartwatch health data, View activity history, Receive phone notifications, Configure alarms and reminders, Display weather information, Find your phone feature

**Features:** macOS Compatibility

**In-app purchases:** none


### JDK

[App page](https://appshunter.io/ios/app/jdk/id1641306987)

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

**In-app purchases:** none


## Frequently asked questions

### Is DavidLian SW free?

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

### Is JDK free?

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

### Do DavidLian SW or JDK have ads?

JDK shows ads; DavidLian SW does not.

### Which is updated more often, DavidLian SW or JDK?

DavidLian SW ships an update every 3 months, and JDK every 13 months. Most recently, DavidLian SW was updated on October 12, 2026 and JDK on October 12, 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.*