# Fibonacci Clock by simple ver vs SUUGAKU

The clearest difference is update cadence: SUUGAKU at every 6 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.

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

Fibonacci Clock by simple ver ships an update fortnightly, SUUGAKU every 6 days. The most recent releases landed on October 15, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Fibonacci Clock by simple ver | SUUGAKU |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (6 ratings)](https://appshunter.io/ios/app/fibonacci-clock-by-simple-ver/id996123572/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 71.4% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Fortnightly | **Every 6 days** |
| Monetization | Ad-supported | — |
| Size | 3 MB | 5 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [YUKI HAYANO](https://appshunter.io/developer/874819360) | [Fuji Bit Inc.](https://appshunter.io/developer/1874205957) |

## What reviewers say

### Fibonacci Clock by simple ver

[App page](https://appshunter.io/ios/app/fibonacci-clock-by-simple-ver/id996123572)

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:** macOS Compatibility

**In-app purchases:** none


### SUUGAKU

[App page](https://appshunter.io/ios/app/suugaku/id6759102221)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked 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 6 days. Most recently, Fibonacci Clock by simple ver was updated on October 15, 2026 and SUUGAKU on October 16, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*