Comparison

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.

Head to head
About

水印图片/图片水印

Features
Read full description

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.

About

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.

Highlights
  • Recurring bill visualization
  • Subscription management
  • Renewal and trial reminders
  • Auto-import from App Store
  • Spending summaries
  • Archived subscription details
Features
Read full description

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

水印图片/图片水印4 screens
OpenSub4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

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.

Scorecard2 real differences · 8 level
水印图片/图片水印 versus OpenSub: the parameters behind the verdict, then further details
Parameter水印图片/图片水印OpenSub
PriceFreeFree
Rating—4.5 (2 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—2 — better
Update frequencyEvery 4 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better17.0
Further details — not scored
Size19 MB3 MB
Age rating4+4+
Developer勃 孔Shanghai Haishi Culture Technology Co., Ltd.

In-app purchases

None

水印图片/图片水印

No in-app purchases

None

OpenSub

No in-app purchases

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 24, 2026.

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