Comparison

When vs ZeroZip

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

Head to head
About

When

Never forget important dates again with this simple event tracking tool. Easily add and customize upcoming events like birthdays and anniversaries to see them all at a glance. Stay organized and ensure you never miss a moment that matters.

Highlights
  • Track birthdays and anniversaries
  • Countdown to concerts and vacations
  • Simple event adding
  • Customizable with emojis
  • Clear event overview
Features
Read full description

Always forget to send that birthday card on time? Me too. With When, you'll never forget an important date again. Keep track of all the moments that matter to you, from birthdays and anniversaries to concerts, vacations, and everything in between. Designed with simplicity in mind, When makes it easy to see all your upcoming events at a glance. Quickly add new events, customize with a lil emoji, and voila! You'll never miss a thing.

About

ZeroZip

Features
Read full description

ZeroZip is a fast, efficient, and secure file-processing tool designed for seamless compression, archiving, encryption, and EXIF privacy cleaning. Built with a native iOS 26 fluid glass interface, the app delivers a light, intuitive experience that lets you handle even the most complex file-management tasks in just a few steps. ZeroZip uses an advanced compression engine to significantly reduce file size while preserving visual quality. Multiple compression presets—such as High Quality, Balanced, and Size Priority—allow you to choose the best option for your needs. You can also select from various resolution presets (Original, 4096, 2048, 1024, etc.) to balance clarity and output size. Combine multiple photos or files into a single archive with one tap, with optional encryption support. Zip0 supports ZIP, TAR, TAR.GZ, and TAR.BZ2 formats, making it suitable for different workflows and platforms. Sharing via email, cloud storage, or messaging apps becomes faster and more efficient. Protect your privacy by removing sensitive EXIF metadata such as location, timestamp, and camera information from photos. This ensures safe sharing on social networks or with others without exposing personal data. Save processed files to the default output directory or choose a custom path. The built-in smart naming system automatically appends a sequence number to avoid overwriting when files share the same name. ZeroZip follows the latest iOS 26 design guidelines with a transparent, lightweight, and fluid interface. Minimalistic interaction logic makes it easy for anyone to use, with smooth transitions and a consistent experience across all iPhone and iPad models. By using ZeroZip, you agree to comply with Apple’s Standard End User License Agreement (EULA). Apple EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

When4 screens
ZeroZip4 screens

Verdict

The call

The clearest difference is in-app purchases: When at none against ZeroZip's 1. When also leads on update cadence (every 4 days vs every 2 months). ZeroZip's advantage is iOS requirement (13.0 vs 16.0). On price, 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

Both are free to download. ZeroZip sells 1 one-off in-app purchase. When asks for nothing beyond the download.

UpkeepUpdate frequency

When ships an update every 4 days, ZeroZip every 2 months. The most recent releases landed on October 21, 2026 and October 24, 2026 respectively.

Scorecard3 real differences · 6 level
When versus ZeroZip: the parameters behind the verdict, then further details
ParameterWhenZeroZip
PriceFreeFree
Rating5.0 (2 ratings) — better—
Number of ratings2 — better—
Update frequencyEvery 4 days — betterEvery 2 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPadiPhone, iPod
Requires iOS16.013.0 — better
Further details — not scored
Size3 MB28 MB
Age rating4+4+
DeveloperClark Dinnisongenghong Xie

In-app purchases

None

When

No in-app purchases

1 purchases

ZeroZip

One-time1
  • Ad-Free$1.99

Questions

Is When free?
When is free to download, with no in-app purchases.
Is ZeroZip free?
ZeroZip is free to download, with in-app purchases available.
Do When or ZeroZip have ads?
Neither When nor ZeroZip shows ads.
Which is updated more often, When or ZeroZip?
When ships an update every 4 days, and ZeroZip every 2 months. Most recently, When was updated on October 21, 2026 and ZeroZip on October 24, 2026.

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