# Winder vs HeissenQRNG

The clearest difference is in-app purchases: HeissenQRNG at none against Winder's 1. HeissenQRNG also leads on device support (3 vs 1) and iOS requirement (15.1 vs 26.2). On price, update cadence and ads there is nothing between them.

Both are free to download. Winder sells 1 one-off in-app purchase. HeissenQRNG asks for nothing beyond the download.

Winder ships an update every 5 days, HeissenQRNG every 4 days. The most recent releases landed on October 13, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Winder | HeissenQRNG |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/winder-precision-clock/id6749173558/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 days | **Every 4 days** |
| Monetization | Free with in-app purchases | — |
| Size | 15 MB | 23 MB |
| Requires iOS | 26.2 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 9+ |
| Developer | [IVAN ALEJANDRO MUNGUIA CRUZ](https://appshunter.io/developer/1829095431) | [Synapta SpA](https://appshunter.io/developer/1863447598) |

## What reviewers say

### Winder

[App page](https://appshunter.io/ios/app/winder-precision-clock/id6749173558)

This app provides highly accurate time synchronization with atomic time servers. It features beautifully crafted, animated watch dials and optional sound cues for precise timekeeping. Designed for watch enthusiasts, it prioritizes privacy with no data collection.

**Highlights:** Atomic time synchronization (NTP), Drift strip for device offset, Continuous-sweep second hand, Analog and digital display options, 12 handcrafted, animated dial themes, Optional countdown sound cues, No data collection or tracking

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Winder Pro | $4.99 | one-time |


### HeissenQRNG

[App page](https://appshunter.io/ios/app/heissenqrng/id6760141387)

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

**In-app purchases:** none


## Frequently asked questions

### Is Winder free?

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

### Is HeissenQRNG free?

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

### Do Winder or HeissenQRNG have ads?

Neither Winder nor HeissenQRNG shows ads.

### Which is updated more often, Winder or HeissenQRNG?

Winder ships an update every 5 days, and HeissenQRNG every 4 days. Most recently, Winder was updated on October 13, 2026 and HeissenQRNG on October 15, 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.*