Mono Browser vs Curtain Calc Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Mono Browser
Experience a unique browsing journey with a focus on a monochromatic interface, customizable themes, and enhanced privacy. Enjoy features like an integrated ad blocker, an option to keep the screen on, and anonymous browsing.
- Monochromatic browsing experience
- Integrated ad blocker
- Anonymous browsing (invisible mode)
- Keep screen on while browsing
- Customizable themes and app icons
- Long tap to open links without leaving current page
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Mono — a browser built for how you actually browse. Designed for iPhone and iPad, Mono strips away the clutter of modern browsers and gives you a clean, monochrome experience — or add a splash of colour, your call. FEATURES - Long-press any link to open it without leaving the page - Built-in ad blocker - No-image mode for faster, lighter browsing - Keep-screen-on while browsing - Favourites, reimagined - Custom themes, app icons and accent colours - Invisible mode for private browsing - Search with DuckDuckGo, Google, Yahoo, Bing, Ecosia or Baidu COMPLETELY FREE Every feature in Mono — ad blocker, no-image mode, keep-screen-on, invisible mode, all of it — is free, full stop. No ads, no data selling, and no visibility into your browsing activity, favourites, or usage. Ever. If you'd like to support development, you can leave an optional donation from within the app. THE STORY Mono started as a personal project to fix what I felt was missing from other browsers, and grew into a full-featured mobile browser along the way. It's built and maintained solo, so bugs can happen — please reach out via the support page with issues or ideas. I read every message. Mono is developed by Nubliq, an independent software studio building simple, honest apps. CREDITS Search icons by Royyan Wijaya (Flaticon) Premium icons by Mayor Icons (Flaticon) Clean icons by smalllikeart (Flaticon) Photo & shopping bag icons by Freepik (Flaticon)
Curtain Calc Pro
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Curtain Calc uses a geometric coverage model to calculate how effectively a curtain panel blocks light from a given window. CALCULATION MODEL The engine computes direct-cover area minus an edge-leak penalty. The penalty is derived from the difference between the curtain's actual overlap and the user's target overlap on both side edges and the top. The result is a dimensionless coverage ratio (0–1), displayed as a percentage. INPUT PARAMETERS • Window width & height (cm) • Curtain panel width & height (cm) • Desired side overlap (cm, each side) • Desired top overlap (cm) OUTPUT • Coverage percentage with color-coded rating • Recommendation: whether curtain width or height needs to increase HISTORY & RE-USE Calculations are persisted via UserDefaults. Each record can be named, browsed in a list, and reloaded into the calculator as a prefill. LOCALIZATION English and Simplified Chinese, runtime-switchable without restart. PRIVACY Zero network activity. Zero data collection. No third-party SDKs.
Screenshots
Verdict
The clearest difference is in-app purchases: Curtain Calc Pro at none against Mono Browser's 4. Mono Browser's advantage is device support (3 vs 1) and iOS requirement (14.0 vs 17.0). On price and ads 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. Mono Browser sells 4 one-off in-app purchases. Curtain Calc Pro asks for nothing beyond the download.
| Parameter | Mono Browser | Curtain Calc Pro |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (2 ratings) — better | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 5 weeks | — |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 14.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 16 MB | 1 MB |
| Age rating | 17+ | 4+ |
| Developer | Lorenzo Lombardo | 晓 郭 |
In-app purchases
Mono Browser
- PremiumFree
- Donation Small$0.99
- Donation Medium$2.99
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- Donation Large$4.99
Curtain Calc Pro
No in-app purchases
Questions
Is Mono Browser free?
Is Curtain Calc Pro free?
Do Mono Browser or Curtain Calc Pro have ads?
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