# Glow 75 vs Winterlock

The clearest difference is in-app purchases: Winterlock at none against Glow 75's 2. Winterlock also leads on iOS requirement (16.4 vs 26.0). Glow 75's advantage is ads (none vs shown). On price, update cadence and device support there is nothing between them.

Both are free to download. Glow 75 sells 2 in-app purchases, starting at $7.99 per 7 days. Winterlock asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 3 days. The most recent releases landed on September 11, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Glow 75 | Winterlock |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 3 days | Every 3 days |
| Size | 20 MB | 35 MB |
| Requires iOS | 26.0 | **16.4** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Reyhan Zeki](https://appshunter.io/developer/1864735849) | [GCL Tech](https://appshunter.io/developer/1784049183) |

## What reviewers say

### Glow 75

[App page](https://appshunter.io/ios/app/glow-75-challenge/id6779936821)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $7.99 | per 7 days |
| Yearly | $79.99 | per year |


### Winterlock

[App page](https://appshunter.io/ios/app/winterlock-winter-arc-tracker/id6807602638)

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

**In-app purchases:** none


## Frequently asked questions

### Is Glow 75 free?

Glow 75 is free to download, with in-app purchases available.

### Is Winterlock free?

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

### Do Glow 75 or Winterlock have ads?

Winterlock shows ads; Glow 75 does not.

### Which is updated more often, Glow 75 or Winterlock?

Glow 75 ships an update every 3 days, and Winterlock every 3 days. Most recently, Glow 75 was updated on September 11, 2026 and Winterlock on September 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.*