Comparison

Fibonacci Clock+ vs Write Cyrillic Alphabet

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

Head to head
About

Fibonacci Clock+

This app displays time using a unique Fibonacci sequence tile system. It offers customizable themes, a digital time companion, and an interactive physics playground for leftover minutes. Enjoy ambient music or integrate your own library.

Highlights
  • Full-screen Fibonacci clock display
  • Toggleable digital time companion
  • Five customizable watch themes
  • Calculation panel for time math
  • Interactive physics playground for minutes
  • Music integration with iPhone Library
  • Interactive info sheet with sliders
Read full description

Fibonacci Clock+ — Feature Highlights Core Clock • Full-screen Fibonacci clock: 5 tiles (1, 1, 2, 3, 5) that light up in different colors to show the current time • Reads hours from red + yellow tiles, minutes (in 5-min steps) from green + yellow tiles • Auto-updating live, second-by-second Digital Time Companion • Toggleable digital time pill in the top nav • Tap to switch between 12-hour (AM/PM) and 24-hour (military) formats • Preference remembered across launches 5 Watch Themes (persisted) • Classic — walnut wooden frame, painted tiles • Military — tactical olive • Doctor — clean clinical white • Navy — deep maritime blue • Digital — glowing neon retro Calculation Panel • Slide-out left panel shows the math: e.g. "12h = 2 red + 8 yellow", "25 min = (3 green + 2 yellow) × 5" • Learn how Fibonacci addition builds every time Interactive Physics Playground • Extra minutes (0–4 leftover) appear as floating icons • Star mode: zero-gravity — drift freely • Football mode: real gravity + bounce • Drag and fling icons with momentum • Icon-to-icon collisions with visual ring + haptic feedback Music & Sound • Built-in ambient "Quiet Morning" loop • Pick songs from your iPhone Music Library via MusicKit • Compact transport pill: shuffle · previous · play/pause · next · loop • All persists — loop and shuffle preferences remembered • Optional hourly chime Interactive Info Sheet • Mini-clock demo with sliders — set any hour & minute to see how the tiles decompose • "Now" button snaps the demo back to real time Polish • Landscape-locked, immersive full-viewport layout • Idle timer disabled so the clock never dims • Smooth theme transitions and spring animations • Reserved safe zones so controls, digital time and banner never overlap the clock Version 3.0.0 Fibonacci Clock+:  To get the time you need some math. The view of the clock is made up of five squares whose side lengths match the first five Fibonacci numbers: 1, 1, 2, 3 and 5. The hours are displayed using red and the minutes using green. When a square is used to display both the hours and minutes it turns Yellow(Red + Green). Black squares are ignored. Minute Box(Green Or Yellow): represents 5 mins Hour Box(Red Or Yellow): represents 1 hrs. The remaining minutes are represented by stars or Football, which are shown or hidden according to the current time. App also provides background music "The quiet morning" by David Fesliyan. https://www.fesliyanstudios.com/about

About

Write Cyrillic Alphabet

Features
Read full description

Learn to write the Cyrillic alphabet through guided handwriting practice. Write Cyrillic Alphabet is an educational app designed to help beginners develop confident Cyrillic handwriting through structured tracing and repetition exercises. The app focuses on proper letter formation and stroke order to build strong writing habits from the start. Whether you are a student, parent, or self-learner, this app provides a calm and distraction-free way to practice writing Cyrillic letters. Learn by Writing Writing by hand strengthens recognition and memory. This app helps you: - Trace Cyrillic letters step by step - Follow correct stroke order - Practice writing letters independently - Build muscle memory through repetition Each letter is presented clearly to support focused practice. Structured Alphabet Practice The Cyrillic alphabet is organized into progressive learning sets: - Simple letter shapes - Letters with straight and curved strokes - More complex forms - Full alphabet review You can also practice individual letters at any time. Multiple Writing Modes Each letter includes different learning modes: Trace Mode - Follow the letter outline Guided Mode - Write with minimal visual support Memory Mode - Write independently without guidance This progression helps learners move from tracing to confident handwriting. Designed for Focus - Clean, distraction-free interface - Light and dark mode support - Calm, paper-like writing experience - Suitable for children and adults - No pop-ups. No interruptions. Privacy First - No account required - No ads - No tracking - No data collection All handwriting practice happens locally on your device. Who It Is For - Beginners learning the Cyrillic alphabet - Children practicing letter formation - Adults improving handwriting skills - Students studying Russian or other Cyrillic-based languages Build confidence in Cyrillic handwriting one letter at a time.

Screenshots

Fibonacci Clock+4 screens
Write Cyrillic Alphabet4 screens

Verdict

The call

The clearest difference is price: Fibonacci Clock+ at Free against Write Cyrillic Alphabet's $3.99. Write Cyrillic Alphabet's advantage is device support. On in-app purchases 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+ is free to download; Write Cyrillic Alphabet costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Scorecard2 real differences · 8 level
Fibonacci Clock+ versus Write Cyrillic Alphabet: the parameters behind the verdict, then further details
ParameterFibonacci Clock+Write Cyrillic Alphabet
PriceFree — better$3.99
Rating5.0 (2 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings2 — better—
Update frequency—Every 6 weeks
Ads—No
In-app purchasesNoNo
MonetizationFree—
Devices—iPhone, iPad, iPod — better
Requires iOS16.615.1 — better
Further details — not scored
Size13 MB42 MB
Age rating4+4+
DeveloperVijayvir SinghJelmer van Nuss

In-app purchases

None

Fibonacci Clock+

No in-app purchases

None

Write Cyrillic Alphabet

No in-app purchases

Questions

Is Fibonacci Clock+ free?
Fibonacci Clock+ is free to download, with no in-app purchases.
Is Write Cyrillic Alphabet free?
Write Cyrillic Alphabet costs $3.99, with no in-app purchases.

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