Comparison

LocalClock vs DeltaClock

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

Head to head
About

LocalClock

Features
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LocalClock is a world clock for the place you are standing, and for the people you keep in touch with. Your city stays at the top. The clock, the date, and the sky all follow that place. Drag the line from west to east and the hour moves with you, city by city. Let go, and it springs back to where you are. When the place on screen is not home, the date shows how far ahead or behind that hour is. Solar time sits under the clock. It follows longitude, not the time zone, so you can see when the clock and the sun disagree. After sunset the dial on the line is a small moon. In daylight it is the sun. Contacts keeps a short list of people. Each row shows the country and the city, the local time, and a note if you wrote one. On Saturday and Sunday in their city, a small Weekend label appears. Weekdays stay quiet. Tap a person to edit the name, the city, the note, or a photo. Pin someone with Show in widget. The small widget shows one person and the full time, including seconds. The medium widget shows three. The large widget shows six, in the order of your list. A weekend label appears on the medium and large widgets, not on the smallest one. The app can follow the system language, or you can choose Simplified Chinese, Traditional Chinese, English, Japanese, Korean, French, German, or Spanish. The change is immediate, including on the widgets. Time can follow the system, or you can lock it to 24-hour or 12-hour. Location is used only to name the city you are in. If you decline, LocalClock uses the city that represents your time zone. Photos you add for a contact stay on the device. There is no account, no feed, and nothing to sign in to.

About

DeltaClock

Features
Read full description

DeltaClock is a stylish world clock and time zone meeting planner built for people who work across multiple time zones. If you collaborate with teammates, clients, friends, or family in different countries, DeltaClock helps you compare cities, convert time zones, and schedule meetings without guesswork. A WORLD CLOCK YOU CAN MOVE THROUGH TIME Most world clock apps only show “now”. DeltaClock lets you scroll time forward or backward to preview any moment: • Add your key cities and instantly compare local time in each time zone • Scrub the timeline to answer “What time will it be there?” in seconds • See day and night changes, date rollovers, and time differences visually • Reduce mistakes during daylight saving time changes (DST) TIME ZONE REMINDERS THAT MAKE SENSE Create reminders based on the time in another city, and DeltaClock converts it to your local time automatically. • Schedule reminders for calls, deadlines, lessons, streams, and flights • Set reminders by “their time” (for example 9:00 in New York) and avoid mental math • Great for distributed teams, freelancers, and international routines OVERLAP PLANNER FOR REMOTE TEAMS DeltaClock is also a meeting planner: it shows overlap windows across multiple time zones so you can pick a time that works for everyone. • View overlaps for multiple cities in one planner • Build plans from overlap blocks (for example best meeting window, handover time, deep work hours) • Share plans as calendar events to keep everyone aligned • Perfect for recurring meetings, standups, interviews, and cross border projects WIDGETS: SEE TIME AT A GLANCE Add DeltaClock widgets to your Home Screen for instant time zone visibility: • City Time Widget: a stylish widget that shows the current time in your chosen city (great for your key teammate or client location) • Project Timeline Widget: a compact view that highlights overlap windows across your project cities so you can spot meeting friendly hours quickly THREE BEAUTIFUL THEMES Choose the look that fits your style: • System / Liquid Glass • Neumorphic • Retro Neumorphic A clean interface makes time zone conversion and scheduling feel effortless. WHO IT’S FOR DeltaClock is made for: • Remote work and global teams • Managers coordinating schedules across time zones • Freelancers with international clients • Students attending classes in another country • Travelers planning itineraries and check ins • Long distance relationships and families WHY DELTACLOCK DeltaClock combines a world clock, time zone converter, widgets, and meeting planner in one focused app: • Fast setup: add cities, compare time zones, find overlap • Visual timeline: understand time differences at a glance • Fewer mistakes: avoid missed meetings caused by DST or date changes • Calendar sharing: turn overlaps into real plans • Widgets: your key cities and project overlaps always visible Work across time zones with confidence. Compare time zones, plan meetings, and set time zone reminders with DeltaClock. HOW IT WORKS 1. Add the cities you care about (work, home, clients, travel). 2. Use the World Clock timeline to slide into the future or the past. 3. Switch to the Overlap Planner to find shared working hours. 4. Create a plan and export it as a calendar event to share with others. BUILT FOR CLARITY DeltaClock focuses on the most common multi time zone tasks: world clock comparison, time zone conversion, and meeting planning. Instead of doing math, you see the answer: • “Is it too late to message London?” • “When does Sydney start work?” • “What’s the best meeting time for New York, Berlin, and Tokyo?” • “If the deadline is 17:00 in LA, what time is that for me?” USE IT AS A TIME ZONE CONVERTER Need a quick time zone converter? Scrub to a time in one city and read the matching time in every other city. DeltaClock makes time zone conversion fast, visual, and reliable for daily scheduling. EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

LocalClock4 screens
DeltaClock4 screens

Verdict

The call

The clearest difference is price: DeltaClock at Free against LocalClock's $0.99. DeltaClock also leads on update cadence (every 4 days vs every 2 months). LocalClock's advantage is in-app purchases (none vs 3) and iOS requirement (15.0 vs 18.0). On 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

DeltaClock is free to download; LocalClock costs $0.99 up front. DeltaClock sells 3 in-app purchases, starting at $1.99 per month. LocalClock asks for nothing beyond the download.

UpkeepUpdate frequency

LocalClock ships an update every 2 months, DeltaClock every 4 days. The most recent releases landed on November 5, 2026 and October 30, 2026 respectively.

Scorecard4 real differences · 4 level
LocalClock versus DeltaClock: the parameters behind the verdict, then further details
ParameterLocalClockDeltaClock
Price$0.99Free — better
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 2 monthsEvery 4 days — better
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better18.0
Further details — not scored
Size3 MB24 MB
Age rating4+4+
DeveloperBin HuaAmeliia Shekikhacheva

In-app purchases

None

LocalClock

No in-app purchases

3 purchases

DeltaClock

Subscriptions2
  • Pro Subscription Monthly$1.991 Month
  • Pro Subscription Annual$9.991 Year
One-time1
  • Lifetime purchase$24.99

Questions

Is LocalClock free?
LocalClock costs $0.99, with no in-app purchases.
Is DeltaClock free?
DeltaClock is free to download, with in-app purchases available.
Do LocalClock or DeltaClock have ads?
Neither LocalClock nor DeltaClock shows ads.
Which is updated more often, LocalClock or DeltaClock?
LocalClock ships an update every 2 months, and DeltaClock every 4 days. Most recently, LocalClock was updated on November 5, 2026 and DeltaClock on October 30, 2026.

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