Comparison

Flat Earth Pro vs First Christian Rockwall

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

Head to head
About

Flat Earth Pro

Visualize celestial body positions, daylight coverage, and moon phases on an Earth projection. Explore sun and moon overhead positions, rise/set times, and lunar details. Features offline functionality and a local weather forecast.

Highlights
  • Daylight coverage visualization
  • Sun and moon overhead positions
  • Rise and set times
  • Moon phases and libration
  • Offline functionality
  • Local weather forecast
Features
Currently charting
Read full description

Flat Earth app is a tool used to visualise daylight coverage, sun and moon overhead positions, rise and set times, moon phases, lunar parallactic angle and liberations, and much more in a simple and easy to read Azimuthal projection of the earth. Once you start the application, you will be informed immediately about the current zenith (overhead) position of the sun and moon, the current phase and parallactic angle of the moon, day and night map and much more relative to any observer position on earth. With one touch you can rotate clockwise or counter-clockwise to move time to the future or to the past and visualise the orbital motion of Sun, Moon, and 5 more optional celestial bodies realtime and with great accuracy. All of the core features of the app work offline including time zones. The graphical positions of the celestial bodies on the map represent the zenith (overhead) position relative to the app time. The direction of the celestial body (azimuth) in your local sky and its altitude can be visualised as well as the sky dome relative to any location through the navigation tab. The Flat Earth Application includes: - Lunar Perigee and Apogee in realtime as well as event schedule. - Lunar Phases in realtime as well as event schedule. - Local and regular Compass, and directions for the current sky position for all of the available celestial bodies. - Altitude , azimuth and current zenith position are featured and easily accessible for every feature celestial body. - Day light coverage visualisation over the earth for any particular time instant. - The rise and set times for any location on earth for all the of the available celestial bodies. - All time zones. - Moon libration and Orientation at any date and time and at any location. - Unique local weather forecast integrated within the app in app time controller. - Unlimited Moon, Sun and Earth Data at ANY date and time. - The ability to take and share a high resolution shot of the earth a moon. - Custom Notification at any date and time.

About

First Christian Rockwall

Features
Read full description

This app is your best place where you can: - Watch or listen to First Christian Church Rockwall messages - Stay up-to-date and sign-up for upcoming events - Download messages for offline listening - Make a secure gift Mobile app version: 6.21.1

Screenshots

Flat Earth Pro4 screens
First Christian Rockwall3 screens

Verdict

The call

The clearest difference is price: First Christian Rockwall at Free against Flat Earth Pro's $3.99. Flat Earth Pro's advantage is update cadence (every 6 weeks vs every 6 months) and chart position (#180 vs unranked). On ads, in-app purchases and device support 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

First Christian Rockwall is free to download; Flat Earth Pro costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Flat Earth Pro ships an update every 6 weeks, First Christian Rockwall every 6 months. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

Scorecard4 real differences · 7 level
Flat Earth Pro versus First Christian Rockwall: the parameters behind the verdict, then further details
ParameterFlat Earth ProFirst Christian Rockwall
Price$3.99Free — better
Rating4.8 (120 ratings) — better—
Positive reviews81.3% of reviews—
Number of ratings120 — better—
Update frequencyEvery 6 weeks — betterEvery 6 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
Best chart rank#180 — better—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Apple TV — better
Requires iOS13.0 — better15.1
Further details — not scored
Size224 MB52 MB
Age rating4+4+
DeveloperOthman AlzahraniFirst Christian Church Rockwall

In-app purchases

None

Flat Earth Pro

No in-app purchases

None

First Christian Rockwall

No in-app purchases

Questions

Is Flat Earth Pro free?
Flat Earth Pro costs $3.99, with no in-app purchases.
Is First Christian Rockwall free?
First Christian Rockwall is free to download, with no in-app purchases.
Do Flat Earth Pro or First Christian Rockwall have ads?
Neither Flat Earth Pro nor First Christian Rockwall shows ads.
Which is updated more often, Flat Earth Pro or First Christian Rockwall?
Flat Earth Pro ships an update every 6 weeks, and First Christian Rockwall every 6 months. Most recently, Flat Earth Pro was updated on November 3, 2026 and First Christian Rockwall on October 30, 2026.

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