Comparison

When Will I vs Shadowline

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

Head to head
About

When Will I

Features
Read full description

When Will I is a fun and informative utility to show the time left to a specific event. Whether you're waiting for Christmas, retirement, your birthday, or the next episode of your favorite TV show, When Will I can tell you exactly how long it will be. With When Will I, you can: - Track multiple events at once - Choose from a variety of time units (minutes, seconds, hours, weeks, months, etc.) - Set custom images for each event - Sync your events to your connected Apple Watch

About

Shadowline

Visualize time zones with elegant clock faces or a single 24-hour dial. Plan meetings, manage jet lag with science-based advice, and view a live day & night map. Widgets offer at-a-glance city times.

Highlights
  • World clocks with customizable themes
  • 24-hour dial for at-a-glance time comparison
  • Meeting planner with calendar integration
  • Jet lag adjustment plans
  • Live day & night map with moon phase
  • Home and Lock Screen widgets
Features
Read full description

Shadowline turns time zones into something you can actually see. Track the cities that matter to you, then read them at a glance — as elegant clock faces, or on a single 24-hour dial where every city sits on one ring so you instantly see who's awake, who's asleep, and the hours you overlap. FEATURES • World clocks — Add any city on Earth and see its time, day or night, and offset from you. Reorder, rename, and theme each one. • 24-hour dial — All your cities on one circular timeline. Drag to scrub through the day and find a time that works everywhere. • Meeting planner — Swipe through upcoming hours and watch every city update together. Found a slot? Add it straight to your calendar. • JetLag IQ — Heading somewhere new? Get a simple, science-based plan to shift your body clock and land ready. • Day & night map — A live world map with the real sunlight terminator, plus sunrise, sunset, and moon phase. • Widgets — Put your favorite cities and the dial on your Home and Lock Screen in styles that match your look. Everything runs entirely on your device. No account, no ads, no tracking — your cities and settings never leave your phone. SHADOWLINE PRO Free to use with up to three cities. Unlock Shadowline Pro once — a single $2.49 purchase, no subscription — for unlimited cities, every widget style, and import/export. Yours forever.

Screenshots

When Will I2 screens
Shadowline4 screens

Verdict

The call

The clearest difference is in-app purchases: When Will I at none against Shadowline's 1. Shadowline's advantage is ads (none vs shown) and update cadence (every 2 days vs every 7 months). On price, 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. Shadowline sells 1 one-off in-app purchase. When Will I asks for nothing beyond the download.

UpkeepUpdate frequency

When Will I ships an update every 7 months, Shadowline every 2 days. The most recent releases landed on October 30, 2026 and October 6, 2026 respectively.

Scorecard3 real differences · 6 level
When Will I versus Shadowline: the parameters behind the verdict, then further details
ParameterWhen Will IShadowline
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 7 monthsEvery 2 days — better
AdsYesNo — better
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, Apple WatchiPhone, iPad
Requires iOS17.017.0
Further details — not scored
Size5 MB40 MB
Age rating4+4+
DeveloperTalon Strike SoftwareKKB CoRi Technologies Private Limited

In-app purchases

None

When Will I

No in-app purchases

1 purchases

Shadowline

One-time1
  • Shadowline Pro$2.49

Questions

Is When Will I free?
When Will I is free to download, with no in-app purchases.
Is Shadowline free?
Shadowline is free to download, with in-app purchases available.
Do When Will I or Shadowline have ads?
When Will I shows ads; Shadowline does not.
Which is updated more often, When Will I or Shadowline?
When Will I ships an update every 7 months, and Shadowline every 2 days. Most recently, When Will I was updated on October 30, 2026 and Shadowline on October 6, 2026.

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