QuickErrNote vs Custom Watermark Camera
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
QuickErrNote
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QuickErrorNote-AI Error Notebook Tired of manually copying wrong questions? QuickErrorNote helps you organize study material efficiently. Snap photos of your homework or exam mistakes. The AI provides complete solutions and generates variant exercises to strengthen your weak points. —————————————— Key Features —————————————— - Snap to save wrong questions Capture images of exercises. Image rotation and cropping are supported for fast error collection. - AI Analysis & Variant Exercises AI analyzes each question and delivers standard solutions. Generate custom variant exercises to master knowledge points. - Organize your error library Sort wrong questions by subject and knowledge topics for quick lookup and focused review. - PDF Export & Printing Build custom exercise sets and export PDF documents. Choose whether to include solutions for printing. - Generation History All generated documents are saved. You can view past exercises and re-export PDF files anytime. ‑ Personalized Review Schedule Receive daily revision reminders and view the proportion of mistakes in each subject to make targeted improvements. - Multi-language Support AI outputs match your device system language automatically. This app includes in-app purchases. For support: globalfadeback@163.com Privacy Policy: https://scnwlelia0ru.feishu.cn/wiki/VNmnw6wzaimQwMkuYjYcQNuSnHd
Custom Watermark Camera
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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.
Screenshots
Verdict
The clearest difference is in-app purchases: Custom Watermark Camera at none against QuickErrNote's 3. On price, ads, device support and iOS requirement 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. QuickErrNote sells 3 one-off in-app purchases. Custom Watermark Camera asks for nothing beyond the download.
| Parameter | QuickErrNote | Custom Watermark Camera |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 days | — |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 | 17 |
| Further details — not scored | ||
| Size | 6 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | HappyTimes Tech Co., Ltd. | zhou haoyuan |
In-app purchases
QuickErrNote
- 120 Points$0.99
- 400 Points$1.99
- 3500 Points$12.99
Custom Watermark Camera
No in-app purchases
Questions
Is QuickErrNote free?
Is Custom Watermark Camera free?
Do QuickErrNote or Custom Watermark Camera have ads?
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