Apps like Riefler

Here are some great alternatives to Riefler by Torsten Becker :

Tick Tock Pendulum Clock

Tick Tock Pendulum Clock

Modern Pendulum Wall Clock

Modern Pendulum Wall Clock

AtomicClock: NTP Time

AtomicClock: NTP Time

Atomic Clock & Watch Accuracy

Atomic Clock & Watch Accuracy

Momentix: Huge Digital Clock

Momentix: Huge Digital Clock

Stopwatch & Timer Pro

Stopwatch & Timer Pro

AstroClocks

Atomic Time - NTP Clock Sync

Atomic Time - NTP Clock Sync

Alarm Clock App

Alarm Clock App

TAI Clock and Converter

TAI Clock and Converter

Hypno Clock Live Wallpaper

Hypno Clock Live Wallpaper

Android Clock Widgets

Android Clock Widgets

OneplusClock

Floating Clock: Time Tool

Floating Clock: Time Tool