Comparison

Web PKI vs Trade Friend

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

Head to head
About

Web PKI

Perform digital signatures using certificates from your mobile device on compatible websites and applications. Securely authenticate documents and transactions on the go.

Highlights
  • Digital signatures with mobile certificates
  • Compatibility with websites
  • Compatibility with applications
  • Secure authentication
Features
Read full description

O Web PKI permite realizar assinaturas digitais com certificados do seu celular em sites ou aplicativos compatíveis.

About

Trade Friend

Organize product research, shopping, and supplier information from trade shows, stores, and travel. Save seller details, record product specifications, and compare items side-by-side. Export your organized research into PDF reports.

Highlights
  • Project-based organization
  • Save seller contact info and photos
  • Record product details and specifications
  • Side-by-side product comparison
  • PDF export for research reports
  • Organize trade shows and shopping trips
Features
Read full description

Find. Record. Compare. Decide. Trade Friend is your companion for organizing product research, shopping and suppliers at trade shows, stores, malls and while traveling. No more hundreds of photos without context, lost business cards, or wondering: “Which store was that again?” With Trade Friend, everything starts with a project. Create a project for a trade show, trip, research session or shopping day and keep everything you find in one place. Never lose a seller again Save each seller or store with their name, contact information, photos, notes and location. Keep photos of business cards, storefronts, booths and other references so you can easily find them later. Turn every photo into information Add products to the right seller and record photos, price, MOQ, CBM, quantity, specifications, notes and other important details. Every photo stays connected to the product, seller and information that gives it context. Compare before you decide Found interesting products from different sellers? Select your favorites and compare them side by side, including photos, prices and product information. Use it to compare products from multiple suppliers at a trade show — or even shoes, clothing and other items you discover while shopping at different stores. Your research. Organized in PDF. Export your projects and take your research with you. Share it with your team or keep an organized report of the sellers and products you discovered. Trade Friend is designed for: • Trade shows and exhibitions • Suppliers and factories • Stores and shopping malls • Shopping trips • Wholesale markets • Events and showrooms • Product and price research From discovery to decision, keep your research organized. Trade Friend — Find. Record. Compare. Decide. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Web PKI1 screens
Trade Friend4 screens

Verdict

The call

The clearest difference is review sentiment: Trade Friend at 100% against Web PKI's 25%. Trade Friend also leads on rating (5.0 vs 1.0) and update cadence (every 6 days vs every 2 months). Web PKI's advantage is in-app purchases (none vs 2) and ratings volume (4 vs 1). On price, ads, device support and iOS requirement 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. Trade Friend sells 2 in-app purchases, starting at $3.99 per month. Web PKI asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Trade Friend holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 4 and 1 respectively. Written reviews point the same way: 25% of Web PKI's written reviews are positive against 100% of Trade Friend's.

UpkeepUpdate frequency

Web PKI ships an update every 2 months, Trade Friend every 6 days. The most recent releases landed on November 13, 2026 and October 30, 2026 respectively.

Scorecard6 real differences · 4 level
Web PKI versus Trade Friend: the parameters behind the verdict, then further details
ParameterWeb PKITrade Friend
PriceFreeFree
Rating1.0 (4 ratings)5.0 (1 ratings) — better
Positive reviews25.0% of reviews100.0% of reviews — better
Number of ratings4 — better1
Update frequencyEvery 2 monthsEvery 6 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.015.0
Further details — not scored
Size31 MB72 MB
Age rating4+4+
DeveloperLacuna Software LTDA EPPjulio cesar abduch santos

Customer experience

Web PKI

All ratings4 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews24 reviews
Positive25.0%
Neutral4.2%
Negative70.8%

Trade Friend

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

In-app purchases

None

Web PKI

No in-app purchases

2 purchases

Trade Friend

Subscriptions2
  • Trade Friend Premium Monthly$3.991 Month
  • Trade Friend Premium Annual$29.991 Year

Questions

Is Web PKI free?
Web PKI is free to download, with no in-app purchases.
Is Trade Friend free?
Trade Friend is free to download, with in-app purchases available.
Which has better reviews, Web PKI or Trade Friend?
Trade Friend is rated higher. Web PKI averages 1.0 out of 5 from 4 ratings, while Trade Friend averages 5.0 from 1 ratings.
Do Web PKI or Trade Friend have ads?
Neither Web PKI nor Trade Friend shows ads.
Which is updated more often, Web PKI or Trade Friend?
Web PKI ships an update every 2 months, and Trade Friend every 6 days. Most recently, Web PKI was updated on November 13, 2026 and Trade Friend on October 30, 2026.

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