Comparison

ZoneFlip vs Clock Stamp

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

Head to head
About

ZoneFlip

Features
Read full description

ZoneShift is the fastest, cleanest way to work across time zones. Pin your most-used cities and see their current times on one screen — no scrolling, no setup friction. Tap any card to enter What-If mode: type a time in that zone and every other pin updates instantly. Perfect for scheduling meetings, booking calls, or just keeping track of friends abroad. Features: - Fast single-screen design — all times visible at once - What-If mode — type a time in any zone, see it everywhere - 24h or 12h clock, your choice - Fully offline — no internet required, no accounts, no tracking - Overlap Finder (Pro) — see shared business hours across all your zones - Unlimited zone pins (Pro) - Share time tables (Pro) ZoneShift Pro is a one-time purchase that unlocks all features forever.

About

Clock Stamp

This app displays multiple city time zones on a single, elegant clock face. It provides visual context for day, night, and weather in each location, aiding in travel planning and international communication.

Highlights
  • Multiple city time zones
  • Visual analog world clock
  • Local time difference display
  • Weather and day/night context
  • 12-hour and 24-hour modes
  • Light and dark appearance
Features
Read full description

Clock Stamp makes world time easy to read. See the time in several cities at once on one elegant dial, and check time differences, whether it's day or night, and the local weather at a glance. • Dial: every city sits on the dial, so time differences and daylight are clear at a glance • City search: search Apple Maps for cities and towns worldwide, and add as many as you like • Local Time: follows your location, or uses your phone's time zone • Weather: local weather at a glance, with backgrounds and weather effects that follow each city's time and weather • iPhone Duo: controls within reach of your thumb on both displays, and a live map of Earth showing day and night when it's open • 12/24-hour dial, Light/Dark appearance, Celsius/Fahrenheit, two text sizes • Six languages: English, 简体中文, Français, Italiano, 日本語, 한국어 • Supports VoiceOver and Reduce Motion Made for working across borders, remote meetings, planning trips, studying abroad, and keeping in touch with friends and family in other time zones.

Screenshots

ZoneFlip4 screens
Clock Stamp4 screens

Verdict

The call

The clearest difference is in-app purchases: Clock Stamp at none against ZoneFlip's 1. Clock Stamp also leads on update cadence (every 2 days vs every 3 weeks). On price, ads, device support 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

Both are free to download. ZoneFlip sells 1 one-off in-app purchase. Clock Stamp asks for nothing beyond the download.

UpkeepUpdate frequency

ZoneFlip ships an update every 3 weeks, Clock Stamp every 2 days. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 7 level
ZoneFlip versus Clock Stamp: the parameters behind the verdict, then further details
ParameterZoneFlipClock Stamp
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 3 weeksEvery 2 days — better
AdsNoNo
In-app purchasesYesNo — better
Monetization—Free
DevicesiPhoneiPhone
Requires iOS26.0 — better26.2
Further details — not scored
Size0 MB4 MB
Age rating4+4+
Developer永 张Zhicheng Chen

In-app purchases

1 purchases

ZoneFlip

One-time1
  • ZoneFlip Pro$4.99
None

Clock Stamp

No in-app purchases

Questions

Is ZoneFlip free?
ZoneFlip is free to download, with in-app purchases available.
Is Clock Stamp free?
Clock Stamp is free to download, with no in-app purchases.
Do ZoneFlip or Clock Stamp have ads?
Neither ZoneFlip nor Clock Stamp shows ads.
Which is updated more often, ZoneFlip or Clock Stamp?
ZoneFlip ships an update every 3 weeks, and Clock Stamp every 2 days. Most recently, ZoneFlip was updated on October 28, 2026 and Clock Stamp on October 31, 2026.

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