# Sterna Unigem Dealer vs Countdown Builder

The clearest difference is price: Sterna Unigem Dealer at Free against Countdown Builder's $0.99. Sterna Unigem Dealer also leads on in-app purchases (none vs 1) and ads (none vs shown). Countdown Builder's advantage is update cadence (every 2 weeks vs every 2 months). On device support and iOS requirement there is nothing between them.

Sterna Unigem Dealer is free to download; Countdown Builder costs $0.99 up front. Countdown Builder sells 1 one-off in-app purchase. Sterna Unigem Dealer asks for nothing beyond the download.

Sterna Unigem Dealer ships an update every 2 months, Countdown Builder every 2 weeks. The most recent releases landed on October 3, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Sterna Unigem Dealer | Countdown Builder |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sterna-unigem-dealer/id6462632140/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 76 MB | 11 MB |
| Requires iOS | **16.6** | 17.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 17+ | 4+ |
| Developer | [Sterna Security Devices Private Limited](https://appshunter.io/developer/1751436158) | [Kalavathi Ekambaram](https://appshunter.io/developer/912222873) |

## What reviewers say

### Sterna Unigem Dealer

[App page](https://appshunter.io/ios/app/sterna-unigem-dealer/id6462632140)

This application is designed for security lock opening. It provides a tool for locksmiths and security professionals to access and manage lock systems.

**Highlights:** Security lock opening, Lock management, Professional tool

**Features:** macOS Compatibility

**In-app purchases:** none


### Countdown Builder

[App page](https://appshunter.io/ios/app/countdown-builder/id6745096791)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| EventCountdown Premium | $0.99 | one-time |


## Frequently asked questions

### Is Sterna Unigem Dealer free?

Sterna Unigem Dealer is free to download, with no in-app purchases.

### Is Countdown Builder free?

Countdown Builder costs $0.99, and also offers in-app purchases.

### Do Sterna Unigem Dealer or Countdown Builder have ads?

Countdown Builder shows ads; Sterna Unigem Dealer does not.

### Which is updated more often, Sterna Unigem Dealer or Countdown Builder?

Sterna Unigem Dealer ships an update every 2 months, and Countdown Builder every 2 weeks. Most recently, Sterna Unigem Dealer was updated on October 3, 2026 and Countdown Builder on October 14, 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.*