ZoneFlip vs Clock Stamp
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ZoneFlip
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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.
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.
- 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
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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
Verdict
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
Both are free to download. ZoneFlip sells 1 one-off in-app purchase. Clock Stamp asks for nothing beyond the download.
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.
| Parameter | ZoneFlip | Clock Stamp |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 3 weeks | Every 2 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | — | Free |
| Devices | iPhone | iPhone |
| Requires iOS | 26.0 — better | 26.2 |
| Further details — not scored | ||
| Size | 0 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | 永 张 | Zhicheng Chen |
In-app purchases
ZoneFlip
- ZoneFlip Pro$4.99
Clock Stamp
No in-app purchases








