Comparison

TimeZone Expert vs Stinger

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

Head to head
About

TimeZone Expert

Features
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TimeZone Expert helps you compare world times and plan across time zones with less guesswork. Choose your local city, add related cities, and instantly see the matching time around the world. Adjust one time and every city updates together, making it easier to find a good time for meetings, calls, travel planning, or staying connected with family and friends abroad. TimeZone Expert also highlights weekends, public holidays, and off-work hours, so you can avoid inconvenient times before sending an invite. Key features: β€’ Compare multiple cities at the same time β€’ Adjust one time and see all cities update together β€’ Automatically detect your local city or choose it manually β€’ Search cities, countries, and time zones β€’ Show weekends, public holidays, and off-work hours β€’ Add selected times to your calendar β€’ Support for Apple Calendar, Google Calendar, and Outlook β€’ Home Screen widgets for quick time checks β€’ Apple Watch support for your selected cities β€’ Custom holidays and office closures for specific cities β€’ Built-in language support for international users TimeZone Expert is designed for remote teams, international families, frequent travelers, global students, and anyone who works or communicates across time zones.

About

Stinger

Features
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WHAT AMPS FOR 1/8 INCH? SOLVED. Pick the process, the metal and the thickness. Stinger answers with real machine settings: amperage, voltage, wire feed speed, gas and polarity, computed from the manufacturers' published charts instead of forum guesses. FREE FOREVER, NO COUNTER - MIG settings for mild steel, stainless and aluminum: amps, volts, wire feed speed, gas flow and transfer mode for every common wire size - Stick amperage for every rod in the catalog: 6010, 6011, 6013, 7014, 7018, 7024, stainless and cast iron nickel, with polarity, positions and the rod's personality - Sheet metal gauge to decimal to millimeters - Tungsten colour codes and current capacity - A defects guide: porosity, undercut, spatter, cracking, with causes and fixes STINGER PRO, ONE PAYMENT - TIG settings for steel, stainless and aluminum: amps, tungsten, cup, gas flow, filler size, and AC balance and frequency for aluminum - Flux core parameters for the self-shielded wires, straight from the wire makers' procedure tables - Heat input in kJ/in and kJ/mm, the number a WPS asks for - Preheat guidance from the carbon equivalent, with steel grade presets - Consumables math: filler weight per fillet, rods per pound, minutes left in the gas bottle - Weld symbols, joint fit-up, shielding gas guide and a which-rod-for-which-job selector - Save your machines and the dialed-in settings that actually worked BUILT FOR THE SHOP FLOOR - Works completely offline, in the yard, under the truck, behind the barn - Imperial and metric everywhere: fractions, gauges and millimeters side by side - Every table names its source. Every result is a starting point, and the app says so - No account, no ads, no tracking, no subscription. Your setups never leave your iPhone Stinger computes starting points from published manufacturer data. It is not a welding procedure specification and does not replace the filler maker's datasheet or your WPS.

Screenshots

TimeZone Expert3 screens
Stinger4 screens

Verdict

The call

The clearest difference is in-app purchases: TimeZone Expert at none against Stinger's 1. TimeZone Expert also leads on update cadence (every 5 days vs every 4 weeks) and device support (3 vs 1). On price, ads and iOS requirement there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Stinger sells 1 one-off in-app purchase. TimeZone Expert asks for nothing beyond the download.

UpkeepUpdate frequency

TimeZone Expert ships an update every 5 days, Stinger every 4 weeks. Both last shipped on October 25, 2026.

Scorecard3 real differences Β· 3 level
TimeZone Expert versus Stinger: the parameters behind the verdict, then further details
ParameterTimeZone ExpertStinger
PriceFreeFree
Update frequencyEvery 5 days β€” betterEvery 4 weeks
AdsNoNo
In-app purchasesNo β€” betterYes
DevicesiPhone, iPad, Apple Watch β€” betteriPhone
Requires iOS18.017.0 β€” better
Further details β€” not scored
Size14 MB1 MB
Age rating4+4+
DeveloperPo-Han ChenFaruk Orman

In-app purchases

None

TimeZone Expert

No in-app purchases

1 purchases

Stinger

One-time1
  • Stinger Pro$9.99

Questions

Is TimeZone Expert free?
TimeZone Expert is free to download, with no in-app purchases.
Is Stinger free?
Stinger is free to download, with in-app purchases available.
Do TimeZone Expert or Stinger have ads?
Neither TimeZone Expert nor Stinger shows ads.
Which is updated more often, TimeZone Expert or Stinger?
TimeZone Expert ships an update every 5 days, and Stinger every 4 weeks. Most recently, TimeZone Expert was updated on October 25, 2026 and Stinger on October 25, 2026.

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