# second.lux vs Watermark Stamp Camera

The clearest difference is in-app purchases: second.lux at none against Watermark Stamp Camera's 1. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Watermark Stamp Camera sells 1 one-off in-app purchase. second.lux asks for nothing beyond the download.

second.lux ships an update every 2 weeks, Watermark Stamp Camera every 10 days. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | second.lux | Watermark Stamp Camera |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 10 days** |
| Size | 12 MB | 16 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Kotaro Iwata](https://appshunter.io/developer/6789841786) | [开棋 姜](https://appshunter.io/developer/1471317815) |

## What reviewers say

### second.lux

[App page](https://appshunter.io/ios/app/secondlux/id6789841784)

**Features:** macOS Compatibility

**In-app purchases:** none


### Watermark Stamp Camera

[App page](https://appshunter.io/ios/app/watermark-stamp-camera/id6802896327)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Lifetime Unlock | $6.99 | one-time |


## Frequently asked questions

### Is second.lux free?

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

### Is Watermark Stamp Camera free?

Watermark Stamp Camera is free to download, with in-app purchases available.

### Do second.lux or Watermark Stamp Camera have ads?

Neither second.lux nor Watermark Stamp Camera shows ads.

### Which is updated more often, second.lux or Watermark Stamp Camera?

second.lux ships an update every 2 weeks, and Watermark Stamp Camera every 10 days. Most recently, second.lux was updated on October 28, 2026 and Watermark Stamp Camera on October 31, 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.*