Comparison

Avi Pdf Pro vs PDF Guard(Pro)

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

Head to head

Avi Pdf Pro

PDF Editor, Scanner & Reader

Free

🔧 Utilities

★ 4.08 ratingsView app →

PDF Guard(Pro)

Lock/Unlock PDF files

$2.99

🔧 Utilities

No ratingsView app →

About

Avi Pdf Pro

This utility app offers a comprehensive suite of tools for managing PDF files. Easily create, merge, lock, unlock, and watermark PDFs using images or your phone's camera. Your files are processed securely and deleted from servers after completion.

Highlights

Create PDF files
Merge PDF files
Lock PDF files
Unlock PDF files
Watermark PDF files
Use phone images or camera

Features

Read full description

Free and easy to use complete PDF toolkit with functions to create, merge, lock, unlock, watermark PDF files using images from your phone or phone camera. This tool does not store your files on our server longer than needed. All files will be deleted from our server after process completes.

About

PDF Guard(Pro)

Features

Read full description

PDF Guard: Your Ultimate Solution for PDF Security and Freedom. Easily lock and unlock your PDF files with precision and confidence. Take control of your document privacy and accessibility in just a few clicks. Guard your information, unlock your convenience. Developed by Anvaysoft Programmer- Hrishi Suthar Made with love in India

Screenshots

Avi Pdf Pro4 screens

PDF Guard(Pro)4 screens

Verdict

The call

The clearest difference is price: Avi Pdf Pro at Free against PDF Guard(Pro)'s $2.99. Avi Pdf Pro also leads on update cadence (every 2 months vs every 20 months). PDF Guard(Pro)'s advantage is iOS requirement (13.0 vs 15.0). On ads, 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

Avi Pdf Pro is free to download; PDF Guard(Pro) costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Avi Pdf Pro ships an update every 2 months, PDF Guard(Pro) every 20 months. The most recent releases landed on August 28, 2026 and September 7, 2026 respectively.

Scorecard3 real differences · 7 level

Avi Pdf Pro versus PDF Guard(Pro): the parameters behind the verdict, then further details
Parameter	Avi Pdf Pro	PDF Guard(Pro)
Price	Free — better	$2.99
Rating	4.0 (8 ratings) — better	—
Positive reviews	100.0% of reviews	—
Number of ratings	8 — better	—
Update frequency	Every 2 months — better	Every 20 months
Ads	No	No
In-app purchases	No	No
Monetization	Free	—
Devices	iPhone, iPad, iPod	iPhone, iPad, iPod
Requires iOS	15.0	13.0 — better
Further details — not scored
Size	40 MB	22 MB
Age rating	4+	17+
Developer	Navjot Singh	Hrishi Suthar

In-app purchases

None

Avi Pdf Pro

No in-app purchases

None

PDF Guard(Pro)

No in-app purchases

Questions

Is Avi Pdf Pro free?

Avi Pdf Pro is free to download, with no in-app purchases.

Is PDF Guard(Pro) free?

PDF Guard(Pro) costs $2.99, with no in-app purchases.

Do Avi Pdf Pro or PDF Guard(Pro) have ads?

Neither Avi Pdf Pro nor PDF Guard(Pro) shows ads.

Which is updated more often, Avi Pdf Pro or PDF Guard(Pro)?

Avi Pdf Pro ships an update every 2 months, and PDF Guard(Pro) every 20 months. Most recently, Avi Pdf Pro was updated on August 28, 2026 and PDF Guard(Pro) on September 7, 2026.