Comparison

Curvature vs Pastor Notes App

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Advanced Earth Calculators
  • Graphic Result Visualization
  • Precision Mapping Tools
  • Data Persistence with SwiftData
  • Expanded PDF Library
  • Universal Unit Converter
  • Save & Export Calculations
Features
Read full description

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.

About

Pastor Notes App

This app helps pastors and church leaders manage their congregations. It simplifies sermon sharing, enhances engagement, and streamlines church communication to foster spiritual growth.

Highlights
  • Sermon sharing
  • Congregation connection
  • Ministry empowerment
  • Church communication
  • Spiritual growth support
Features
Read full description

Introducing Pastor Notes App, the ultimate tool for pastors and church leaders to connect with their congregation. Designed to simplify sermon sharing, foster engagement, and streamline church communication, Pastor Notes App is built to empower your ministry and help your church grow spiritually.

Screenshots

Curvature4 screens
Pastor Notes App4 screens

Verdict

The call

The clearest difference is price: Pastor Notes App at Free against Curvature's $1.99. Pastor Notes App also leads on iOS requirement (15.0 vs 17.6). On rating, review sentiment, ratings volume and update cadence 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

CostPrice · In-app purchases · Ads · Monetization

Pastor Notes App is free to download; Curvature costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Curvature against 5.0 for Pastor Notes App. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 11, 2026 and October 3, 2026 respectively.

Scorecard3 real differences · 7 level
Curvature versus Pastor Notes App: the parameters behind the verdict, then further details
ParameterCurvaturePastor Notes App
Price$1.99Free — better
Rating5.0 (2 ratings)5.0 (1 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings2 — better1
Update frequencyEvery 2 monthsEvery 2 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.615.0 — better
Further details — not scored
Size70 MB57 MB
Age rating4+4+
DeveloperSteven WilkinsonConcierge Contacts PTY LTD

Customer experience

Curvature

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Pastor Notes App

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Curvature

No in-app purchases

None

Pastor Notes App

No in-app purchases

Questions

Is Curvature free?
Curvature costs $1.99, with no in-app purchases.
Is Pastor Notes App free?
Pastor Notes App is free to download, with no in-app purchases.
Which has better reviews, Curvature or Pastor Notes App?
Curvature and Pastor Notes App are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.
Do Curvature or Pastor Notes App have ads?
Neither Curvature nor Pastor Notes App shows ads.
Which is updated more often, Curvature or Pastor Notes App?
Curvature ships an update every 2 months, and Pastor Notes App every 2 months. Most recently, Curvature was updated on October 11, 2026 and Pastor Notes App on October 3, 2026.

Other comparisons