Comparison

PDF Protector vs Stego

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

Head to head
About

PDF Protector

Secure your PDF documents with robust password protection and encryption. This tool allows you to restrict printing, copying, and content extraction, while also enabling decryption of protected files. Protect sensitive information quickly and reliably.

Highlights
  • Encrypt PDF files with password protection
  • Restrict printing and copying
  • Decrypt protected PDFs
  • Create reusable security profiles
  • Protect multiple files at once
  • Fast and intuitive interface
Features
Read full description

Protect your PDF documents with ease. PDF Protector is a simple and powerful tool for encrypting and decrypting PDF files. Secure your documents with industry-standard password protection to prevent unauthorized access. Set an open password and optionally restrict printing, copying, or content extraction to keep sensitive information safe. If you know the correct password, PDF Protector can also remove existing security settings and decrypt your PDF files. Features * Secure PDF files with industry-leading 256-bit AES encryption * Set an open password to secure your documents * Restrict printing, copying, and content extraction * Decrypt protected PDFs and remove password protection * Create reusable security profiles * Protect one or multiple PDF files at once * Fast, intuitive, and easy to use * Compatible with standard PDF readers Whether you’re protecting business documents, personal records, contracts, or confidential files, PDF Protector helps you secure your PDFs quickly and reliably.

About

Stego

Features
Read full description

Stego lets you hide private text or images inside ordinary photos and extract them later on your iPhone or iPad. Your cover images and hidden payloads are processed on your device—they are not uploaded to Japality Limited. CHOOSE YOUR WORKFLOW • LSB-1 for lossless PNG workflows • DCT and GN-QIM for JPEG and recompressed sharing scenarios • Social Media Mode to prepare images for apps that may resize uploads • Optional error correction for tougher recovery FEATURES • Hide text, notes, or an image inside another image • Extract hidden content from stego images • UTF-8 support, including Chinese and emoji • Warnings when a cover image is too flat for reliable embedding FREE & STEGO PRO Stego is free to use with ads. Stego Pro (monthly or yearly subscription) removes banner, interstitial, and app-open ads. Payment is charged to your Apple ID. Subscriptions renew automatically unless canceled at least 24 hours before the end of the period. Manage subscriptions in Settings → Apple ID → Subscriptions, or in Stego → Settings → Stego Pro. PRIVACY See our Privacy Policy for how ads (Google AdMob) and subscriptions (RevenueCat) handle data. Steganography operations themselves stay on your device. IMPORTANT Stego is for lawful personal use only. You are responsible for complying with applicable laws. Steganography is not encryption—anyone with the original file may detect or lose hidden data if the image is recompressed. Support: https://app.japality.com/stego/i/support/ Privacy: https://app.japality.com/stego/i/privacy_policy/ Terms: https://app.japality.com/stego/i/terms/

Screenshots

PDF Protector4 screens
Stego4 screens

Verdict

The call

The clearest difference is ads: PDF Protector at none against Stego's shown. PDF Protector also leads on update cadence (every 3 weeks vs every 6 weeks). Stego's advantage is iOS requirement (16.0 vs 18.0). On price, in-app purchases 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. PDF Protector sells 3 one-off in-app purchases and Stego sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

PDF Protector ships an update every 3 weeks, Stego every 6 weeks. The most recent releases landed on October 9, 2026 and October 3, 2026 respectively.

Scorecard3 real differences · 7 level
PDF Protector versus Stego: the parameters behind the verdict, then further details
ParameterPDF ProtectorStego
PriceFreeFree
Rating5.0 (4 ratings) — better—
Positive reviews71.1% of reviews—
Number of ratings4 — better—
Update frequencyEvery 3 weeks — betterEvery 6 weeks
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree—
DevicesiPhone, iPad, Mac — betteriPhone, iPad
Requires iOS18.016.0 — better
Further details — not scored
Size9 MB51 MB
Age rating4+4+
DeveloperDaniel WittJapality Limited

In-app purchases

3 purchases

PDF Protector

One-time3
  • Full Version for iPhone & iPad$4.99
  • Full Version for Mac$9.99
  • Full Version for All Devices$12.99
2 purchases

Stego

Subscriptions2
  • Stego Pro (Monthly)$2.991 Month
  • Stego Pro (Yearly)$14.991 Year

Questions

Is PDF Protector free?
PDF Protector is free to download, with in-app purchases available.
Is Stego free?
Stego is free to download, with in-app purchases available.
Do PDF Protector or Stego have ads?
Stego shows ads; PDF Protector does not.
Which is updated more often, PDF Protector or Stego?
PDF Protector ships an update every 3 weeks, and Stego every 6 weeks. Most recently, PDF Protector was updated on October 9, 2026 and Stego on October 3, 2026.

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