Comparison

KrypterApp vs Screenshot Zero

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

Head to head
About

KrypterApp

Encrypt any file or message with advanced, user-controlled cryptography. Your data is secured using your device's hardware and advanced algorithms, ensuring privacy without middlemen or servers. Share securely, knowing only your intended recipient can access your information.

Highlights
  • Encrypt any file type (photos, documents, videos)
  • Send encrypted text messages
  • Keys stored in Secure Enclave
  • Post-quantum encryption (XWing)
  • Password protection for double security
  • No account or network connection required
  • Authenticated encryption for sender verification
Read full description

Your private conversations deserve better than "end-to-end encrypted (trust us)." Krypter puts real encryption in your hands: no middlemen, no servers, no fine print. ENCRYPT ANYTHING Photos, documents, voice memos, videos: encrypt any file with HPKE (RFC 9180) and send it any way you like. Only the person you choose can open it. Not us. Not Apple. Not anyone else. ENCRYPTED MESSAGES Write a message, encrypt it, and paste it into iMessage, WhatsApp, email, Signal, whatever. It stays unreadable wherever it travels, except to your recipient. KEYS THAT NEVER LEAVE YOUR IPHONE Every Krypter key is created inside your iPhone's Secure Enclave, the same chip behind Face ID and Apple Pay. The private key can't be exported, copied or read, not even by Krypter. POST-QUANTUM KEY SHARING Invite a contact with a link or QR code. Your public key travels back sealed with ML-KEM, the NIST post-quantum standard, so even a future quantum computer recording today's traffic learns nothing. Everyone sees keys only as SHA-256 fingerprints you can compare in person. CIPHERTEXT THAT SAYS NOTHING Every encrypted message and file starts with a header that looks like random bytes and is padded inside the encryption. Nobody can tell which algorithm was used, whether a password was added, or how big the original really is. PROVE WHO SENT IT Authenticated HPKE lets your recipient verify a message really came from you, not someone pretending to be you. No certificates. No authorities. Pure cryptography. ADD A PASSWORD Stack a shared password on top of the encryption, stretched with 5 million PBKDF2 rounds. Even with the right key, nobody reads it without the password. NOTHING STORED IN THE CLEAR Contacts, key names, dates, settings and the PIN are all sealed on your device with ML-KEM-1024 under the Secure Enclave, and behind your app PIN when it's on. A copy of the phone's storage reveals nothing. TRULY PRIVATE • No account required, ever. Not only not required: there is no way to create one • No network connections: Krypter works fully offline • No data leaves your device unless you share it • No analytics, no tracking, no telemetry • App PIN with a panic PIN, tied to the Secure Enclave and Face ID • Decrypted text hidden from screenshots and screen recordings • Copied text expires from the clipboard after 30 seconds and never syncs to other devices • Privacy screen when you switch apps • No ads, no paywalls BACK UP YOUR CONTACTS Export your contacts in a password-encrypted backup (PBKDF2, 120 million iterations) and restore them anytime. Your keys stay in the Secure Enclave, as they should. STANDARDS-BASED Built on RFC 9180 HPKE, NIST P-256, AES-256-GCM, ML-KEM-768 and ML-KEM-1024, all from Apple's CryptoKit. No proprietary algorithms. No homemade crypto. Krypter is encryption the way it should be: yours.

About

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.

Highlights
  • 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
Features
Read full description

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

KrypterApp3 screens
Screenshot Zero4 screens

Verdict

The call

The clearest difference is in-app purchases: KrypterApp at none against Screenshot Zero's 1. Screenshot Zero's advantage is iOS requirement (18.1 vs 26.0). On price, rating, review sentiment and ratings volume 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. Screenshot Zero sells 1 one-off in-app purchase. KrypterApp asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for KrypterApp against 5.0 for Screenshot Zero. Both are backed by a comparable volume of ratings — 2 and 4 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

KrypterApp ships an update every 4 days, Screenshot Zero weekly. The most recent releases landed on October 9, 2026 and October 7, 2026 respectively.

Scorecard3 real differences · 7 level
KrypterApp versus Screenshot Zero: the parameters behind the verdict, then further details
ParameterKrypterAppScreenshot Zero
PriceFreeFree
Rating5.0 (2 ratings)5.0 (4 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings24 — better
Update frequencyEvery 4 days — betterWeekly
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, Mac — betteriPhone, iPad
Requires iOS26.018.1 — better
Further details — not scored
Size11 MB3 MB
Age rating4+4+
DeveloperPavel YeschenkoChristopher Mayfield

Customer experience

KrypterApp

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Screenshot Zero

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

KrypterApp

No in-app purchases

1 purchases

Screenshot Zero

One-time1
  • Unlimited Access$4.99

Questions

Is KrypterApp free?
KrypterApp is free to download, with no in-app purchases.
Is Screenshot Zero free?
Screenshot Zero is free to download, with in-app purchases available.
Which has better reviews, KrypterApp or Screenshot Zero?
KrypterApp and Screenshot Zero are both rated 5.0 out of 5 on the App Store, from 2 and 4 ratings respectively.
Do KrypterApp or Screenshot Zero have ads?
Neither KrypterApp nor Screenshot Zero shows ads.
Which is updated more often, KrypterApp or Screenshot Zero?
KrypterApp ships an update every 4 days, and Screenshot Zero weekly. Most recently, KrypterApp was updated on October 9, 2026 and Screenshot Zero on October 7, 2026.

Other comparisons