Comparison

Fibonacci Clock by simple ver vs SUUGAKU

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

SUUGAKU

Features
Read full description

SUUGAKU lets you discover the wonders of numbers with your own hands. Enter any number and watch the calculation unfold through animations and graphs. Whether math is hard for you or number theory is your passion, there is something to enjoy. [14 THEMES] - Kaprekar Numbers Sort digits and subtract, again and again, and watch numbers converge to 495 or 6174, step by step. - Collatz Sequence If even, divide by 2. If odd, multiply by 3 and add 1. See the path of this unsolved conjecture on a graph. - Perfect & Amicable Numbers Find numbers like 6, 28 and 496 whose divisors sum to themselves, and pairs whose divisors sum to each other. - Prime Numbers Try primality checks, factorization, the Sieve of Eratosthenes, twin primes and Mersenne primes. - Fibonacci Sequence Compute the Nth number, check any number, and explore the list and graph of this sequence found in nature. - Harshad Numbers Check and list numbers divisible by the sum of their digits. - Magic Squares Generate odd-order squares with equal rows, columns and diagonals, in animation. - Goldbach's Conjecture Split even numbers of 4 or more into two primes and count the pairs. - Smith Numbers Find composite numbers whose digit sum equals the digit sum of their prime factors. - Happy Numbers Sum the squares of the digits again and again, and see step by step whether you reach 1. - Palindrome Numbers Check numbers that read the same both ways, and try the reverse-and-add puzzle of 196. - Pythagorean Triples Check triples with a² + b² = c², see the right triangle, and list the primitive triples. - Triangular Numbers (new) Arrange dots into a triangle to see n(n+1)/2 for yourself, then check and list them. - Narcissistic Numbers (new) Find numbers like 153 = 1³ + 5³ + 3³, equal to the sum of their digits raised to the number of digits. [FEATURES] - Dark and light themes - All calculations run on your device - No account needed - Available in many languages This app shows ads.

Screenshots

Fibonacci Clock by simple ver2 screens
SUUGAKU4 screens

Verdict

The call

The clearest difference is update cadence: SUUGAKU at every 5 days against Fibonacci Clock by simple ver's fortnightly. Fibonacci Clock by simple ver's advantage is iOS requirement (12.0 vs 17.0). On price, 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

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Fibonacci Clock by simple ver ships an update fortnightly, SUUGAKU every 5 days. The most recent releases landed on November 1, 2026 and November 5, 2026 respectively.

Scorecard2 real differences · 8 level
Fibonacci Clock by simple ver versus SUUGAKU: the parameters behind the verdict, then further details
ParameterFibonacci Clock by simple verSUUGAKU
PriceFreeFree
Rating4.0 (6 ratings) — better—
Positive reviews71.4% of reviews—
Number of ratings6 — better—
Update frequencyFortnightlyEvery 5 days — better
AdsYesYes
In-app purchasesNoNo
MonetizationAd-supported—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.0 — better17.0
Further details — not scored
Size3 MB9 MB
Age rating4+4+
DeveloperYUKI HAYANOFuji Bit Inc.

In-app purchases

None

Fibonacci Clock by simple ver

No in-app purchases

None

SUUGAKU

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 SUUGAKU free?
SUUGAKU is free to download, with no in-app purchases.
Do Fibonacci Clock by simple ver or SUUGAKU have ads?
Both Fibonacci Clock by simple ver and SUUGAKU show ads.
Which is updated more often, Fibonacci Clock by simple ver or SUUGAKU?
Fibonacci Clock by simple ver ships an update fortnightly, and SUUGAKU every 5 days. Most recently, Fibonacci Clock by simple ver was updated on November 1, 2026 and SUUGAKU on November 5, 2026.

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