Custom Watermark Camera vs Calculator N
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Custom Watermark Camera
Capture and organize photos with essential details like date, time, and location. Add custom project information and notes to your images for efficient record-keeping. This app is ideal for field documentation and site inspections.
- Customizable watermarks
- Date, time, and location stamps
- Project name and notes
- Import photos
- Edit location and date
- Local data processing
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Custom Watermark Camera is a simple and flexible camera and photo watermarking app. It is designed for site inspections, construction records, field documentation, work check-ins, and everyday photo organization. Key features: - Take photos directly or import images from your photo library - Use your live location or choose a custom location - Display the date, time, place, detailed address, and coordinates - Add a custom project name, notes, and photographer details - Choose from multiple watermark templates and accent colors - Display long project names and addresses across multiple lines - Control flash, switch cameras, zoom, focus, and adjust exposure - Save watermark photos automatically or manually - Edit the location and date again when the original photo is available - Manage and review your watermark photos inside the app Privacy: Your photos, locations, projects, and settings are processed locally on your device and are not uploaded to the developer’s servers. Custom locations only change the visible watermark and do not modify the original GPS or EXIF metadata.
Calculator N
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Calculator N — calculation, done with care. ▸ Edit any part of your expression Halfway through a long calculation and spot a wrong number? Tap it to select it, type the new value, and it's replaced — everything before and after stays as it was. The full expression stays on screen while you type, and the result updates as you go. Large numbers get thousands separators automatically, and you can choose how many decimal places to keep, from 0 to 10. Tap the result to copy it. ▸ Every calculation is saved Each time you press equals, the calculation is saved automatically and shown on the calculator screen, grouped by date. Tap a record to insert its result into your current expression, recalculate the whole expression, add a note, copy it, or delete it. If you clear your records, you can restore them once. A separate History page keeps your older calculations. ▸ Six handy tools · Currency Converter: Convert between common currencies, shown side by side, with one-tap swap. · Amount in Words: Turn a number into its Chinese uppercase form (大写金额) for receipts and contracts. Tap to copy. · BMI: Choose from four reference standards — China, Asia-Pacific, WHO, and US. A scale shows whether you're underweight, normal, or above the healthy range. · Mortgage Calculator: Commercial loans based on LPR plus a spread, as well as Housing Provident Fund loans. Supports both equal installments and equal principal. See your monthly payment, total interest, and total repayment at a glance, and expand to view principal and interest for each month. · Interest & Returns: Savings interest (simple or compound), investment returns (lump sum or monthly contributions), and compound future value. · Date Tools: Calculate age and lunar birthday from a date of birth; find the time between two dates; count days, weeks, or months forward or back from any date; convert Gregorian dates to the Chinese lunar calendar. ▸ Look and feel 14 theme colors — keys and highlights change together — plus Dark Mode. Key sounds, haptic feedback, and voice readout can each be turned on separately, and voice readout won't interrupt music that's playing. Add it to Control Center to open the calculator with one tap. Currency, mortgage, interest, and BMI results are for reference only.
Screenshots
Verdict
The clearest difference is ads: Custom Watermark Camera at none against Calculator N's shown. Calculator N's advantage is update cadence (every 2 days vs every 2 weeks). On price, rating, ratings volume and in-app purchases 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.
On the App Store both sit at effectively the same score — 5.0 for Custom Watermark Camera against 5.0 for Calculator N. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
Custom Watermark Camera ships an update every 2 weeks, Calculator N every 2 days. Both last shipped on October 29, 2026.
| Parameter | Custom Watermark Camera | Calculator N |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (1 ratings) |
| Number of ratings | 1 | 1 |
| Update frequency | Every 2 weeks | Every 2 days — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17 — better | 18.0 |
| Further details — not scored | ||
| Size | 7 MB | 67 MB |
| Age rating | 4+ | 4+ |
| Developer | zhou haoyuan | OpenNode |
In-app purchases
Custom Watermark Camera
No in-app purchases
Calculator N
No in-app purchases
Questions
Is Custom Watermark Camera free?
Is Calculator N free?
Which has better reviews, Custom Watermark Camera or Calculator N?
Do Custom Watermark Camera or Calculator N have ads?
Which is updated more often, Custom Watermark Camera or Calculator N?
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