Comparison

Fibonacci Clock by simple ver vs Flat Earth Sun, Moon Clock

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

Head to head
About

Fibonacci Clock by simple ver

This app displays time using a unique color-coded system based on the Fibonacci sequence. It's designed to be a challenging yet educational way to tell time, with hints available and adjustable intervals.

Highlights
  • Fibonacci sequence time display
  • Color-coded hour and minute
  • Tap for hints
  • Adjustable interval flick gestures
  • Educational math concept
Features
Read full description

This is a clock. but too difficult to read. hour = red + blue minute = (green + blue) * 5 if you tap , you find this hint. if you up or down flick, you can change an interval.

About

Flat Earth Sun, Moon Clock

This app displays real-time positions of the sun and moon, including sunrise, sunset, and twilight times. It offers customizable clock styles, backgrounds, and time-lapse functions to visualize celestial movements and moon phases.

Highlights
  • Real-time sun and moon positions
  • Sunrise, sunset, and twilight times
  • Moon phase visualization
  • Customizable clock styles and backgrounds
  • Hourly and daily time-lapse function
  • Weather information
Features
Currently charting
Read full description

The Flat Earth Clock showing the times of sunrise, sunset, transits of the Sun and Moon, and the beginning and end of civil twilight, along with information on the Moon's phase by specifying the date and location.The Moon phases visualization shows the Accurate size and positions of the Moon and Earth in real time. Fully Customizable :- Time-Space, Background image, Font size , Font color. Clock style. Just ht the settings icon in the bottom right corner and select your view for making it editable. Hit on the image and switch and edit Time-Lapse function Hourly and daily time-lapse speeds. Time-Lapse function: Hourly and daily time-lapse speeds. Watch the phases and location of the moon along with sun’s position as it travels between the tropics. Watch how the day and night change during the seasons and how they become equal during the two equinoxes. Features include: Analog sun & moon Zodiac Clock with day and night: Shows the sun and moon positions along with moon phases and day and night.Watch as the sun makes its daily journey around the face of the earth. Accurate moon size calculations. Show or Hide :- Show or Hide Clock hands and zodiac sign as per your choice. Time Announcer :- Digital clock for displaying time, date. Converting 12-Hour to 24-Hour Format. Set time, date & time zone. Weather :- Temperature, Atmospheric Pressure, Wind, Sunrise, Sunset and Accurate moon size calculations. Digital time and date: In the upper left the time and date will be shown in digital format.

Screenshots

Fibonacci Clock by simple ver2 screens
Flat Earth Sun, Moon Clock4 screens

Verdict

The call

The clearest difference is review sentiment: Fibonacci Clock by simple ver at 71% against Flat Earth Sun, Moon Clock's 0%. Fibonacci Clock by simple ver also leads on price (Free vs $2.99) and rating (4.0 vs 1.0). Flat Earth Sun, Moon Clock's advantage is ads (none vs shown) and chart position (#138 vs unranked). On in-app purchases, 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

CostPrice · In-app purchases · Ads · Monetization

Fibonacci Clock by simple ver is free to download; Flat Earth Sun, Moon Clock costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Fibonacci Clock by simple ver holds the better App Store score, 4.0 against 1.0. Both are backed by a comparable volume of ratings — 6 and 2 respectively. Written reviews point the same way: 71% of Fibonacci Clock by simple ver's written reviews are positive against 0% of Flat Earth Sun, Moon Clock's.

UpkeepUpdate frequency

Fibonacci Clock by simple ver ships an update fortnightly, Flat Earth Sun, Moon Clock monthly. The most recent releases landed on October 15, 2026 and October 25, 2026 respectively.

Scorecard8 real differences · 3 level
Fibonacci Clock by simple ver versus Flat Earth Sun, Moon Clock: the parameters behind the verdict, then further details
ParameterFibonacci Clock by simple verFlat Earth Sun, Moon Clock
PriceFree — better$2.99
Rating4.0 (6 ratings) — better1.0 (2 ratings)
Positive reviews71.4% of reviews — better0.0% of reviews
Number of ratings6 — better2
Update frequencyFortnightly — betterMonthly
AdsYesNo — better
In-app purchasesNoNo
MonetizationAd-supported — betterPaid
Best chart rank—#138 — better
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS12.011.0 — better
Further details — not scored
Size3 MB58 MB
Age rating4+4+
DeveloperYUKI HAYANOrohit guleria

Customer experience

Fibonacci Clock by simple ver

All ratings6 ratings
Positive83.3%
Neutral0.0%
Negative16.7%
Written reviews7 reviews
Positive71.4%
Neutral0.0%
Negative28.6%

Flat Earth Sun, Moon Clock

All ratings2 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

Fibonacci Clock by simple ver

No in-app purchases

None

Flat Earth Sun, Moon Clock

No in-app purchases

Questions

Is Fibonacci Clock by simple ver free?
Fibonacci Clock by simple ver is free to download, with no in-app purchases.
Is Flat Earth Sun, Moon Clock free?
Flat Earth Sun, Moon Clock costs $2.99, with no in-app purchases.
Which has better reviews, Fibonacci Clock by simple ver or Flat Earth Sun, Moon Clock?
Fibonacci Clock by simple ver is rated higher. Fibonacci Clock by simple ver averages 4.0 out of 5 from 6 ratings, while Flat Earth Sun, Moon Clock averages 1.0 from 2 ratings.
Do Fibonacci Clock by simple ver or Flat Earth Sun, Moon Clock have ads?
Fibonacci Clock by simple ver shows ads; Flat Earth Sun, Moon Clock does not.
Which is updated more often, Fibonacci Clock by simple ver or Flat Earth Sun, Moon Clock?
Fibonacci Clock by simple ver ships an update fortnightly, and Flat Earth Sun, Moon Clock monthly. Most recently, Fibonacci Clock by simple ver was updated on October 15, 2026 and Flat Earth Sun, Moon Clock on October 25, 2026.

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