ScratchQ vs Security Master
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ScratchQ
This app serves as a digital scratchpad for everyday calculations, allowing users to save annotated versions for future reference. It features a color-coded system for organizing calculations and a custom keyboard for easy editing and access to operators.
- Save annotated calculations
- Color-coded file system
- Custom keyboard for editing
- Easy access to arithmetic operators
- Organize everyday math problems
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ScratchQ is a scratch pad for all of the "back-of-the-envelope" calculations that we do in everyday life. Whether it is calculating the commission earned on a sale, the square footage of a room, or your grade point average, ScratchQ allows you to save an annotated version of the calculation that you can refer back to again and again. A simple color-coded file system allows you to categorize your calculations. ScratchQ comes with a custom keyboard that allows for easy editing of your saved calculations and easy access to the most common arithmetic operators.
Security Master
Protect your personal information and enhance your online activity. This app offers privacy checks, data leak alerts, secure storage for sensitive files, and a protected browsing experience. Keep your digital life safe and your browsing uninterrupted.
- Privacy Checkup
- Data Leaks Check
- Safe Storage for Files
- Secure Browser
- Malicious Sites Blocking
- Tracker and Ad Blocking
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Security Master is your ultimate companion for safeguarding your private information and enhancing your online experience. This comprehensive app offers robust security features to ensure your data remains confidential and protected: - Privacy Checkup: Conduct regular privacy checkups to ensure your information is secure and identify potential vulnerabilities. - Data Leaks Check: Stay informed about any data breaches affecting your accounts, enabling you to take prompt action to secure your information. - Safe Storage: Utilize the hidden folder to securely store your photos, videos, and documents, keeping them safe from unauthorized access. - Secure Browser: Enjoy a safer browsing experience with the embedded secure browser, which protects you from tracking and data theft. Trust Security Master to keep your digital life secure and your browsing uninterrupted. The application offers the following subscriptions: Premium Weekly and Premium Weekly subscriptions: Provides access to all premium features, such as malicious sites, trackers and ads blocking, user's security review, data breaches monitor. Your subscription will automatically renew unless you turn off auto-renew at least 24 hours before the end of the current period. You can manage your subscriptions and disable auto-renewal through Account Settings after purchase. Any unused portion of a trial period will be forfeited when you purchase a subscription. Payment will be charged to your iTunes Account upon confirmation of purchase. The account will be charged for renewal within 24 hours before the end of the current period, with the cost based on the chosen plan. By using Security Master, you consent to our Terms of Service and Privacy Policy: https://securemasterapp.xyz/privacy_policy.html https://securemasterapp.xyz/terms_and_conditions.html
Screenshots
Verdict
The clearest difference is price: Security Master at Free against ScratchQ's $7.99. Security Master also leads on update cadence (every 11 days vs every 22 months) and ratings volume (4K vs 1). ScratchQ's advantage is rating (5.0 vs 4.4) and in-app purchases (none vs 2). On 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
Security Master is free to download; ScratchQ costs $7.99 up front. Security Master sells 2 in-app purchases, starting at $8.99 per 7 days. ScratchQ asks for nothing beyond the download.
ScratchQ holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Security Master has 4K ratings behind it against 1, so its average is the more settled of the two.
ScratchQ ships an update every 22 months, Security Master every 11 days. The most recent releases landed on November 2, 2026 and November 4, 2026 respectively.
| Parameter | ScratchQ | Security Master |
|---|---|---|
| Price | $7.99 | Free — better |
| Rating | 5.0 (1 ratings) — better | 4.4 (4K ratings) |
| Positive reviews | — | 55.0% of reviews |
| Number of ratings | 1 | 4K — better |
| Update frequency | Every 22 months | Every 11 days — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 1 MB | 20 MB |
| Age rating | 4+ | 17+ |
| Developer | Autoolmaq LLC | Mobiwave Limited |
Customer experience
ScratchQ
Security Master
Bugs and requests
ScratchQ
Not enough reviews yet to summarise bugs or requests.
Security Master
Reported bugs
2 issues- Login issues
- Compatibility problems
Requested features
2 requests- More help and guidance for users
- Free trial period
In-app purchases
ScratchQ
No in-app purchases
Security Master
- Trial Premium Weekly3 Days trial$8.997 Days
- Premium Yearly$49.991 Year








