Screenwise vs Curvature
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Screenwise
Easily find the optimal TV size for your viewing distance or calculate detailed screen specifications. This tool simplifies screen calculations for monitors, web images, and pixel density.
- Optimal TV size calculation
- Viewer distance adjustment
- Advanced screen specifications calculator
- Pixel density calculations
- Web image resizing assistance
- Real-time editable results
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A TV Size and Distance finder with an Advanced Screen Calculator in one easy to use App. -- TV Size and Distance -- Find the Optimal TV Size based on your distance from it (or vice versa), quickly and easily, without having to deal with the maths, science and industry standards. Enter a number or just drag the Viewer to see the result in the format you need. -- Advanced Screen Calculator -- Want more detail? Just tap ‘Advanced’ to flip to the complete Screen Calculator. Find the perfect specs for your next monitor, ensure you re-size your web images correctly or see if those extra pixels are really worth it. You can calculate anything to do with the size and pixels of a screen, just start entering the numbers and the rest will be calculated as soon as there is enough to go on. With results clearly visible and immediately editable, you can tweak each setting to find exactly what you want and if you need to start over, just Clear All. Simple, intuitive, but incredibly comprehensive.
Curvature
This app provides advanced tools for calculating and visualizing earth measurements, including curvature, horizon distance, and drop distance. It features a redesigned interface with precision mapping, data persistence, and a knowledge hub with research resources.
- Advanced Earth Calculators
- Graphic Result Visualization
- Precision Mapping Tools
- Data Persistence with SwiftData
- Expanded PDF Library
- Universal Unit Converter
- Save & Export Calculations
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Curvature: The Ultimate Earth Measurement Toolkit Built from the ground up. Literally. Welcome to the all-new Curvature, the most comprehensive tool for exploring, calculating, and documenting earth measurements. We have completely redesigned the app experience—new code, a sleek modern layout, and powerful features designed for researchers, students, and enthusiasts alike. Whether you are analyzing globe geometry or exploring flat earth models, Curvature provides the advanced formulation and high-precision tools you need to visualize the world around you. What’s New in Curvature? ### Advanced Earth Calculators The Curvature Calculator: Our flagship tool now uses advanced formulation for more accurate results. For the first time, see your calculations come to life with a graphic representation of the results. Quick Horizon Calculator: Instantly find the distance to the horizon based on your height of eye. Quick Curvature Drop: A streamlined tool for rapid drop-distance results. Formula Transparency: Access a dedicated section showing the exact formulas used for both globe and flat earth models. ### Redesigned Mapping & POIs Precision Tools: Utilize the new measurement ruler to calculate distances directly on the map. Points of Interest (POI): Drop pins on key locations and save them for future reference. Data Persistence: Powered by SwiftData, your saved measurements, POIs, and calculations are stored securely in organized folders on your device. ### The Knowledge Hub Expanded PDF Library: A high-performance PDF viewer that allows you to organize research. Pro Feature: You can now import and store your own PDF documents directly within the app. Categorized Links: An improved card-style layout for web resources. Add your own custom links and categorize them to build your personal research database. Comprehensive Glossary: A deep dive into the terminology of both globe and flat earth models. Geographical References: A library of data points and geographical milestones for quick fact-checking. ### All-in-One Utility Universal Unit Converter: Seamlessly convert between Distance, Speed, Weight, Temperature, Area, Volume, and Time. Save & Export: Keep a permanent record of your findings with the ability to save every calculation you perform. Modern. Clean. Accurate. Curvature is more than just a calculator; it’s a portable research laboratory. By providing the tools to calculate "the drop" and visualize the results, we put the power of observation and mathematics in your pocket. Download Curvature today and start measuring your world.
Screenshots
Verdict
The clearest difference is rating: Curvature at 5.0 against Screenwise's 4.3. Curvature also leads on review sentiment (100% vs 75%) and update cadence (every 2 months vs every 9 months). Screenwise's advantage is price ($0.99 vs $1.99) and iOS requirement (9.3 vs 17.6). On ratings volume, ads, in-app purchases and monetization model 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
Screenwise costs $0.99 and Curvature $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Curvature holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 3 and 2 respectively. Written reviews point the same way: 75% of Screenwise's written reviews are positive against 100% of Curvature's.
Screenwise ships an update every 9 months, Curvature every 2 months. The most recent releases landed on September 7, 2026 and September 9, 2026 respectively.
| Parameter | Screenwise | Curvature |
|---|---|---|
| Price | $0.99 — better | $1.99 |
| Rating | 4.3 (3 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 75.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 3 — better | 2 |
| Update frequency | Every 9 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 9.3 — better | 17.6 |
| Further details — not scored | ||
| Size | 8 MB | 70 MB |
| Age rating | 4+ | 4+ |
| Developer | Ata-Ur-Razeque Talukdar | Steven Wilkinson |
Customer experience
Screenwise
Curvature
In-app purchases
Screenwise
No in-app purchases
Curvature
No in-app purchases









