Krypton vs Screenshot Zero
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Krypton
Securely encrypt and protect your personal documents and folders with strong encryption. This app acts like a digital vault, keeping your sensitive files safe from unauthorized access on your devices and cloud storage.
- Strong encryption for documents and folders
- Acts as a secure digital vault
- Supports various file types (pictures, movies, PDFs, etc.)
- Cloud synchronization with iCloud Drive and Dropbox
- Available on iOS and macOS
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Protecting your personal and confidential information since 2009, Krypton is the first, simplest and most reliable App on the iOS Store to strongly encrypt entire documents and folders. Now also available on the macOS App Store. Your stuff is secure from prying eyes no matter where you are in the world. Metaphorically, Krypton keeps your encrypted items in a special vault, with each item contained in their own deposit box; to gain access to an encrypted item the vault must be open and the passcode key must be used to unlock the deposit box before you can discern the plaintext contents inside. In iOS the vault may be open or closed, while on macOS the vault opens upon Log In. Because the unit of encryption is an entire document or folder, Krypton is not a password manager in the traditional sense, although you can maintain a document of all your passwords that you encrypt between uses. Krypton can encrypt any type of document, including but not limited to: • Pictures and movies from your photo album. • Email messages from your mailbox. • Songs, PDFs, movies, Zip files, word processing documents, text files, images, program source code or any other object that you can download over the network or from your personal web server. • Anything on the iOS pasteboard. • Any document other Apps are willing to Share, such as Pages, Numbers and Keynote. • iCloud Drive and Dropbox files for easy cloud synchronization. Krypton uses strong encryption on each item. This has several ramifications: • If your passcode is strong enough to withstand a brute force attack, no one is going to see your stuff. • If you forget your passcode, no one can recover your stuff for you! But only that one document is lost, not your entire collection of items. • Your stuff is secure even if your iDevice or Mac is stolen, or iCloud Drive or Dropbox account is compromised. Visit http://www.bigcatos.com to learn more.
Screenshot Zero
Effortlessly declutter your photo library by swiping through screenshots and unwanted images. This utility app offers a simple, ad-free experience with no tracking or recurring fees, allowing you to quickly organize your memories.
- Swipe left to delete, right to keep
- Year filters for targeted cleaning
- Select specific albums or entire library
- Sort photos chronologically
- Privacy-focused, photos stay on device
- One-time purchase for unlimited use
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Drowning in old screenshots and junk photos? Reach “Screenshot Zero” today. Most photo cleaners are subscription traps or interrupt you with ad after ad. Screenshot Zero is different. We built this to give you (and us) a fast, satisfying way to clear the clutter with absolutely no ads, no tracking, and no recurring fees. Swipe left to trash, right to keep - it really is that simple. Why you’ll love it: -Year Filters: Instantly jump to any year to focus your cleaning efforts -Album Selection: Clean specific folders or your entire library -Chronologically Listed: Sort from Oldest or Newest -Dark Mode: A sleek, modern interface that respects your settings -Privacy First: Your photos never leave your device. We don’t collect any data. -One-Time Buy: More money in your pocket. No subscriptions you forget to cancel. Try 25 deletes for free, then pay once to unlock unlimited usage for ever
Screenshots
Verdict
The clearest difference is price: Screenshot Zero at Free against Krypton's $2.99. Screenshot Zero also leads on update cadence (weekly vs every 10 months). Krypton's advantage is in-app purchases (none vs 1) and device support (4 vs 2). On rating, ratings volume and ads 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
Screenshot Zero is free to download; Krypton costs $2.99 up front. Screenshot Zero sells 1 one-off in-app purchase. Krypton asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for Krypton against 5.0 for Screenshot Zero. Both are backed by a comparable volume of ratings — 2 and 4 respectively.
Krypton ships an update every 10 months, Screenshot Zero weekly. The most recent releases landed on September 22, 2026 and September 20, 2026 respectively.
| Parameter | Krypton | Screenshot Zero |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 5.0 (2 ratings) | 5.0 (4 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 2 | 4 — better |
| Update frequency | Every 10 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad |
| Requires iOS | 14.0 — better | 18.1 |
| Further details — not scored | ||
| Size | 110 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Steve Lidie | Christopher Mayfield |
Customer experience
Krypton
Screenshot Zero
In-app purchases
Krypton
No in-app purchases
Screenshot Zero
- Unlimited Access$4.99









