# 水印图片/图片水印 vs OpenSub

The clearest difference is update cadence: OpenSub at every 3 weeks against 水印图片/图片水印's every 4 months. 水印图片/图片水印's advantage is iOS requirement (15.0 vs 17.0). On price, ads, 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.

水印图片/图片水印 ships an update every 4 months, OpenSub every 3 weeks. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | 水印图片/图片水印 | OpenSub |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (2 ratings)](https://appshunter.io/ios/app/opensub/id6762130793/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Monetization | — | Free |
| Size | 19 MB | 3 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [勃 孔](https://appshunter.io/developer/1855383901) | [Shanghai Haishi Culture Technology Co., Ltd.](https://appshunter.io/developer/1893052687) |

## What reviewers say

### 水印图片/图片水印

[App page](https://appshunter.io/ios/app/id6757134719)

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

**In-app purchases:** none


### OpenSub

[App page](https://appshunter.io/ios/app/opensub/id6762130793)

This app helps you visualize and manage your recurring bills and subscriptions. It provides clear, receipt-style summaries of your spending, with customizable reminders to avoid surprise renewals. Track active and ended subscriptions with ease.

**Highlights:** Recurring bill visualization, Subscription management, Renewal and trial reminders, Auto-import from App Store, Spending summaries, Archived subscription details

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 水印图片/图片水印 free?

水印图片/图片水印 is free to download, with no in-app purchases.

### Is OpenSub free?

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

### Do 水印图片/图片水印 or OpenSub have ads?

Neither 水印图片/图片水印 nor OpenSub shows ads.

### Which is updated more often, 水印图片/图片水印 or OpenSub?

水印图片/图片水印 ships an update every 4 months, and OpenSub every 3 weeks. Most recently, 水印图片/图片水印 was updated on October 28, 2026 and OpenSub on October 31, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*