水印图片/图片水印 vs OpenSub
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
水印图片/图片水印
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This app is a focused, local, and secure image watermarking tool that helps you quickly add clear and well-organized watermarks to your photos. It’s ideal for ID photos, copyright notices, usage instructions, and content annotations across various scenarios. No registration required. No image uploads. All processing is done entirely on your device.
OpenSub
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.
- Recurring bill visualization
- Subscription management
- Renewal and trial reminders
- Auto-import from App Store
- Spending summaries
- Archived subscription details
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OpenSub turns your recurring bills into a clear, tactile receipt—so you actually see what you pay for. Designed for people who cancel trials on time and hate surprise renewals. Add subscriptions in seconds, switch between active and archived “tickets,” and open Analysis when you want the blunt numbers—or a little roast. WHAT YOU GET • Renewal and trial reminders you can tune in Settings • Auto-import from App Store links and quick logo lookup for websites • Spending views and shareable receipt-style summaries—save a snapshot to Photos when you want a record • Archive and lifecycle-friendly details for subscriptions you’ve ended • Appearance options and receipt branding for shares you’re proud of YOUR DATA OpenSub is built for local-first use on your iPhone (and iPad where supported). Your list stays yours. If you’re ready to stop guessing what hits your card each month, print your subscriptions with OpenSub.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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 24, 2026 respectively.
| Parameter | 水印图片/图片水印 | OpenSub |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.5 (2 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 2 — better |
| Update frequency | Every 4 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 19 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | 勃 孔 | Shanghai Haishi Culture Technology Co., Ltd. |
In-app purchases
水印图片/图片水印
No in-app purchases
OpenSub
No in-app purchases









