Comparison

Big Clock vs Pendulum Wave

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

Head to head
About

Big Clock

Transform your iPhone into a stylish bedside clock with interactive widgets for your home screen, lock screen, and Dynamic Island. Enjoy customizable themes and essential information at a glance.

Highlights
  • Interactive iOS widgets
  • Stand-by mode widget
  • Dynamic Island support
  • Lock Screen widget with seconds
  • Transparent widget option
  • Full screen digital clock
  • Gradient themes
Features
Read full description

Turn Your iPhone into Big Clock. Simple and beautiful Digital clock designed for Table Stand. App includes Features: · iOS 26 Interactive Widget, Stand-by Widget · Dynamic Island. · LockScreen Widget with seconds. · Transparent WIdget. · Clock Widget with seconds . · Full Screen Digital Clock. · Beautiful Gradient Themes. · 24-12 hr Format. · Calendar View. and many other exciting features

About

Pendulum Wave

Features
Read full description

A swinging line of pendulums of subtly different lengths drifts into and out of phase, painting wave patterns across the screen. Each pendulum plays a soft tone as it crosses centre, building a gentle, ever-changing soundscape that never quite repeats. Pendulum Wave is built for quiet attention, long study sessions, winding down before sleep, slow breathing, or just a beautiful thing to glance at while you think. — FEATURES — • Four chrome themes: Studio Light, Cream, Slate, Midnight — pick the surface that fits your room. • Sleep & Study timers (10 / 20 / 30 / 45 / 60 min). Sleep gradually warms and softens the audio toward the end. Study brightens and returns to attention. • Lock-screen tile — start a timer, lock your phone, see a live artwork preview, control playback from the lock screen or AirPods. • Drag a pendulum to retune. Tap the stage to pause and resume. Sideways works best. • Web Audio synthesis. Every tone is generated live on-device — no audio files, no streaming, no library of "tracks" to choose from. — PRIVACY — No accounts. No advertising. No analytics. No tracking. The app does not collect any data, full stop. Audio and visuals are generated on your device. — ABOUT — Pendulum Wave started as a tiny experiment in browser physics and became a small daily ritual. Built by Mike Lehnert, a Music Technology teacher in the UK. Free, no in-app purchases, no nags. If it earns a place on your home screen, that's plenty.

Screenshots

Big Clock4 screens
Pendulum Wave4 screens

Verdict

The call

The clearest difference is in-app purchases: Pendulum Wave at none against Big Clock's 1. Big Clock's advantage is iOS requirement (15.0 vs 26.4). On price, ads 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. Big Clock sells 1 one-off in-app purchase. Pendulum Wave asks for nothing beyond the download.

Scorecard2 real differences · 8 level
Big Clock versus Pendulum Wave: the parameters behind the verdict, then further details
ParameterBig ClockPendulum Wave
PriceFreeFree
Rating4.0 (700 ratings) — better—
Positive reviews67.7% of reviews—
Number of ratings700 — better—
Update frequencyEvery 4 weeks—
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better26.4
Further details — not scored
Size17 MB2 MB
Age rating4+4+
DeveloperAmit VermaMichael Lehnert

Bugs and requests

Big Clock

Reported bugs

3 issues
  • Widget not updating time correctly
  • Inconsistent time display between app and widget
  • Review pop-ups blocking clock functionality

Requested features

5 requests
  • Ability to customize font, size, and appearance
  • Option to disable seconds display
  • Landscape mode support
  • More color/theme options
  • Ability to tap widget to access settings

Pendulum Wave

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Big Clock

One-time1
  • Big Clock Pro.$6.99
None

Pendulum Wave

No in-app purchases

Questions

Is Big Clock free?
Big Clock is free to download, with in-app purchases available.
Is Pendulum Wave free?
Pendulum Wave is free to download, with no in-app purchases.
Do Big Clock or Pendulum Wave have ads?
Neither Big Clock nor Pendulum Wave shows ads.

Other comparisons