Comparison

Timezone Converter vs PrepperApp

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

Head to head
About

Timezone Converter

Easily track the local time and date for contacts worldwide. Avoid awkward calling hours by reviewing the best times to connect. Schedule meetings instantly with a Google Calendar link.

Highlights
  • Instant timezone comparison
  • People list with local time/date
  • Best time to call suggestions
  • Home screen widgets
  • One-tap Google Calendar scheduling
  • Clean, readable design
Features
Read full description

Celeste makes time zones effortless. Track the local time and date of the people who matter—so you always know when it’s a good time to call, text, or schedule. Key features # Compare time zones instantly across cities and countries # People list with local time + date (no “base city” needed) # Review Best time to call to avoid awkward hours # Home Screen widgets in multiple styles # One Tap Google Calendar link to schedule calls fast # Clean design that’s easy to read at a glance Built for real life: - Family in different countries - Long-distance relationships - Remote teams across regions Whether your partner is in Boston, family is overseas, or teammates are global — Celeste keeps everyone in sync. ## Language support: - English, French, Spanish, Arabic, Japanese, Portuguese (Brazil), and Simplified Chinese Privacy Policy: https://celeste.pebbleworklabs.com/privacy/ Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

PrepperApp

Features
Read full description

PrepperApp — Be Ready. Stay Safe. PrepperApp is your personal preparedness hub: for the storm that knocks out the power, for the week in the hills, and everything in between. Track what you have, learn what you don't know yet, and stay connected to the people who matter when it counts. Almost all of it works with no signal at all. TRACK YOUR READINESS Monitor your supplies across six categories — water, food, medical, energy, communication and documents — and see your readiness score at a glance. Scan barcodes, watch expiry dates, plan meals, track consumption, and add prices so you know what your stockpile is worth. First aid guides, medicines and a medical profile are built in. SURVIVAL SKILLS, OFFLINE Fire, water purification, shelter building, knots, morse and signalling — step by step, no connection needed. Star navigation, a compass, and an emergency phrasebook for when you don't speak the language. WHEN IT HAPPENS Crisis Mode strips the app back to large text and the actions that matter. Protocols for fire, drowning, anaphylaxis, bleeding and evacuation. Emergency numbers for 61 countries, picked automatically. A torch, an audible signal, and an SOS that sends your location. OUTDOORS AND ON THE TRAIL Record routes, analyse gradients, and compare your times on trail segments with community leaderboards. Report trail conditions, share your live location with a walking buddy, and find community-mapped water sources. Altimeter, coordinate converter, GPX import and export, and offline maps you download before you go. Keep a campsite log and a journal of where you've been. KNOW YOUR ENVIRONMENT Guides for edible plants, mushrooms, animal tracks and seasonal foraging. Moon phases with outdoor tips, satellite passes (ISS and Starlink), lightning maps, air quality and topographic maps. A tick bite protocol, a HAM radio exam trainer and a daily knowledge quiz. STAY CONNECTED Share your readiness status with friends and family using a private invite code. Encrypted one-to-one chat. A walkie-talkie that works device to device with no network at all. Buddy check-in with a dead man's switch timer, so someone knows if you don't come back. PLAN AHEAD A 12-week prep roadmap, a daily briefing, a habit tracker, emergency drills and a crisis simulator built from your own data. Seasonal prep, a fuel tracker and a financial prep module. Plans for power cuts, flooding and storms you can activate and share instantly. Separate plans for your pets, and a vehicle emergency kit. A bug-out bag calculator, a battery inventory, and a damage log for the insurer afterwards. COMMUNITY Discover and report safe locations. Share local incident alerts. Connect with people in your own neighbourhood. A forum for routes, gear and experience — plus P2000 alerts from the Dutch emergency services, and search zones for missing persons using the Mattson method. ON YOUR WRIST An Apple Watch app with your readiness dashboard, compass and route view, plus SOS and your emergency contacts without reaching for your phone. Heart rate, barometer, a CPR timer, and emergency protocols you can read on the watch itself. APPLE INTELLIGENCE (iOS 26 and later) Route briefings with a go/no-go call, route finding in your own words, gear checklist prediction, an action planner for incoming alerts, a supply analyst and a prep coach — all on device. YOUR DATA, YOUR FILES Export to PDF or CSV, and back up to your private iCloud. WORKS WITH THE PREPPER ECOSYSTEM → PrepMoney — budget and spending, with your inventory value synced automatically → PrepAlert — watches the news for what actually matters to you → PrepFamily — household check-ins, SOS alerts and location sharing PRIVACY FIRST Your data stays on your device or in your private iCloud. Friend connections use anonymous invite codes. Community features use your city, never your exact location. Some features need Pro, a one-time purchase. PrepperApp. Because being prepared isn't paranoia — it's responsibility.

Screenshots

Timezone Converter4 screens
PrepperApp4 screens

Verdict

The call

The clearest difference is update cadence: PrepperApp at every 2 days against Timezone Converter's monthly. PrepperApp also leads on device support (3 vs 1). On price, ads, in-app purchases 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. Timezone Converter sells 2 in-app purchases, starting at $5.99 per month and PrepperApp sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Timezone Converter ships an update monthly, PrepperApp every 2 days. The most recent releases landed on September 24, 2026 and October 2, 2026 respectively.

Scorecard2 real differences · 8 level
Timezone Converter versus PrepperApp: the parameters behind the verdict, then further details
ParameterTimezone ConverterPrepperApp
PriceFreeFree
Rating5.0 (9 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings9 — better—
Update frequencyMonthlyEvery 2 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhoneiPhone, iPad, Apple Watch — better
Requires iOS17.0 — better17.6
Further details — not scored
Size7 MB50 MB
Age rating4+12+
DeveloperPebblework LabsMichael Stuut

In-app purchases

2 purchases

Timezone Converter

Subscriptions1
  • Celeste Pro (Monthly)3 Days trial$5.991 Month
One-time1
  • Celeste Pro (Lifetime)$19.99
1 purchases

PrepperApp

One-time1
  • PrepperApp Pro$3.99

Questions

Is Timezone Converter free?
Timezone Converter is free to download, with in-app purchases available.
Is PrepperApp free?
PrepperApp is free to download, with in-app purchases available.
Do Timezone Converter or PrepperApp have ads?
Neither Timezone Converter nor PrepperApp shows ads.
Which is updated more often, Timezone Converter or PrepperApp?
Timezone Converter ships an update monthly, and PrepperApp every 2 days. Most recently, Timezone Converter was updated on September 24, 2026 and PrepperApp on October 2, 2026.

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