Comparison

OneCryption vs Trygg

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

Head to head
About

OneCryption

This app offers true offline encryption for messages, photos, videos, and files. It emphasizes absolute secrecy through direct key exchange and no server reliance, ensuring quantum-proof security.

Highlights
  • Offline encryption for messages and files
  • Direct key exchange
  • No server reliance
  • Quantum-proof security
  • File and media encryption
  • Simple encryption/decryption
Features
Read full description

Private files and messages, encrypted on your iPhone. OneCryption is an offline encryption tool for people who prefer to exchange secret keys in person. It does not operate a message-delivery network: you choose how to send the encrypted result. HOW IT WORKS 1. Meet your contact and confirm their identity. 2. Generate shared secret key material and transfer it directly between nearby devices. 3. Write a message or select content, encrypt it locally, and share the encrypted result through a channel you choose. 4. The recipient decrypts it with the matching shared key. YOUR KEYS, YOUR CONTROL - Encrypt and decrypt text, photos, videos, audio and files. - Manage contacts and shared keys on your device. - See how much key material remains and exchange a fresh key when needed. - Use local encryption without a OneCryption messaging account. OneCryption uses a one-time-pad workflow. Key material must remain secret and must never be reused. Protect the devices and the key exchange. The channel you use to deliver encrypted content has its own privacy and metadata implications; encryption does not make a compromised device safe. FREE AND PREMIUM Text encryption is available for free. Some media and file features require Premium. Purchase options and current prices are shown in the app. If you choose a subscription, it renews automatically unless you cancel it in your App Store account settings. Privacy policy: https://www.onecryption.com/privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Trygg

This app provides a privacy-focused tool for encrypting and securely sharing sensitive documents and photos. It allows users to combine various file types, add signatures, and split PDFs, all protected by strong password encryption before sharing.

Highlights
  • Password encrypt ZIP and PDF files
  • Combine images, PDFs, and text
  • Add signatures to documents
  • Intelligent document scanning
  • Split existing PDF files
  • Secure sharing via multiple platforms
Features
Read full description

You deserve to feel safe sharing information - Use Trygg - The privacy first encryption tool that lets you share sensitive information easy and legal in 2 minutes. Tired of services and tools that spy on you?  Use Trygg - We don't collect any data about you or your documents. Trygg lets you easily photos, scan documents add text, signatures, images and PDF files to create password encrypted ZIP archive or PDF files and easily share them however you want. iMessage, E-mail, Messaging apps, Filesharing etc. Trygg will also let you split existing PDF files into single pages and export to PDFs or PNGs. Need to send a friend or your doctor a secret image, or PDF-document - Or just a photo of something you don't want anyone else to see? Trygg password encrypts it lets you share it via iMessage, Facebook, Mail or Airdrop. Secure and Easy! ____________________________________________________________________________ * Features: - Combine and merge Images, PDFs and text into a ZIP-archive or PDF-document - Legally share sensitive information and documents with password encryption - Intelligent document scanning - Add signatures - Password encrypt PDF with AES 128-bit encryption - Password encrypt ZIP with AES 256-bit encryption - Share password encrypted ZIP or PDF file via iMessage, Facebook, Mail etc - Save ZIP or PDF files to file system - Import PDF files and split into multiple PDF files or split PDF pages into multiple Images ____________________________________________________________________________ * Questions and Answers: Q: Does Trygg collect data about me? A: No. Trygg doesn't contain any form of tracking or analytics, and collect zero information about you or the usage of Trygg. Q: What kind of encryption is used? A: Trygg uses AES-256 for ZIP-archives and AES-128 for PDF-documents. Q: What can I legally share with Trygg? A: Everything, as long as it is a PDF, an Image Or something you can type into the Editor. Just make sure you password encrypt the ZIP or PDF with a strong password. Trygg will provide a password strength indicator that tell you how strong your password is.  - A Protip is to use a long password with UPPERCASE, lowercase letters, numbers and symbols. Q: What does Trygg means? A: Trygg is a Norwegian word for safe, because your PDFs will be safe when you use Trygg Q: Can I import password encrypted PDFs into Trygg? A: Yes, you can import password encrypted PDFs and split them into unencrypted PDFs, one for each page. Q: Can I send Photos with Trygg? A: Yes, you can easily add your secret photos, encrypt them as a ZIP archive or PDF and share them securely. Only recipients who know the password can open the PDFs from Trygg Important links: Privacy policy https://www.ftl.no/trygg  Terms of use(EULA) https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

OneCryption4 screens
Trygg4 screens

Verdict

The call

The clearest difference is rating: OneCryption at 5.0 against Trygg's 4.3. Trygg's advantage is update cadence (weekly vs every 4 months) and ratings volume (3 vs 1). On price, ads, in-app purchases and monetization model 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. OneCryption sells 5 in-app purchases, starting at $49.99 per month and Trygg sells 3 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

OneCryption holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 1 and 3 respectively.

UpkeepUpdate frequency

OneCryption ships an update every 4 months, Trygg weekly. The most recent releases landed on October 14, 2026 and October 2, 2026 respectively.

Scorecard4 real differences · 6 level
OneCryption versus Trygg: the parameters behind the verdict, then further details
ParameterOneCryptionTrygg
PriceFreeFree
Rating5.0 (1 ratings) — better4.3 (3 ratings)
Positive reviews100.0% of reviews—
Number of ratings13 — better
Update frequencyEvery 4 monthsWeekly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFree with in-app purchases
DevicesiPhoneiPhone, iPod — better
Requires iOS17.615.5 — better
Further details — not scored
Size11 MB2 MB
Age rating4+4+
DeveloperChristian HellFredrik Lillejordet

Customer experience

OneCryption

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Trygg

All ratings3 ratings
Positive66.7%
Neutral33.3%
Negative0.0%

In-app purchases

5 purchases

OneCryption

Subscriptions2
  • Premium features monthly7 Days trial$49.991 Month
  • Premium features yearly7 Days trial$500.001 Year
One-time3
  • Key of size 100MB$0.99
  • Key of size 500MB$0.99
  • Premium Lifetime$399.99
3 purchases

Trygg

Subscriptions3
  • 7 days3 Days trial$2.997 Days
  • 30 days$4.991 Month
  • 365 days$6.991 Year

Questions

Is OneCryption free?
OneCryption is free to download, with in-app purchases available.
Is Trygg free?
Trygg is free to download, with in-app purchases available.
Which has better reviews, OneCryption or Trygg?
OneCryption is rated higher. OneCryption averages 5.0 out of 5 from 1 ratings, while Trygg averages 4.3 from 3 ratings.
Do OneCryption or Trygg have ads?
Neither OneCryption nor Trygg shows ads.
Which is updated more often, OneCryption or Trygg?
OneCryption ships an update every 4 months, and Trygg weekly. Most recently, OneCryption was updated on October 14, 2026 and Trygg on October 2, 2026.

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