Comparison

KnowScam Mobile vs OptMsg

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

Head to head
About

KnowScam Mobile

This app uses AI to detect and prevent scams by scanning various communication channels and verifying identities. It offers expert guidance and educational resources to keep users safe from online threats.

Highlights
  • AI-powered scam detection
  • Scan emails, messages, and web addresses
  • Verify online identities
  • Access to scam intervention experts
  • Scam education resources
  • Real-time threat prevention
Features
Read full description

Protect yourself with industry-leading, comprehensive scam detection and prevention services. KnowScam uses cutting-edge AI technology to detect and prevent scams in real time, keeping you one step ahead of potential threats. The KnowScam service includes a range of features to help keep you safe: • Scan & Score - Scan emails, images, physical mail, QR codes, social media messages, text messages, and web addresses to determine whether they're legitimate or an attempt to deceive. • IDeveryone - Verify the identity of people you meet online to help protect against dating scams, marketplace scams, and more, using only their basic contact information. • Scam Intervention - Access trained experts who can provide guidance if you think you're involved in a scam or have become a victim. • Scam Education - Get up-to-date information on the latest scam trends and safety best practices to stay one step ahead. WHAT YOU CAN DO IN THE APP As part of your service, the KnowScam mobile app lets you: • Review your scam detection results on the go for accounts already enrolled in AutoScan. • Use QuickScan to select items, such as texts or social media messages, for review with Scan & Score. • Start IDeveryone verifications right from the app to confirm the identity of anyone you've met online, such as through a dating site or marketplace. NEED MORE HELP? For further assistance with your account, to speak with the Scam Intervention team, or to access our Scam Education services, log in at https://portal.scamnetic.com. The KnowScam companion app is compatible with iOS devices and can be downloaded from the App Store. -------- KnowScam is a registered trademark of Scamnetic, Inc. All rights reserved. https://www.scamnetic.com

About

OptMsg

This email app offers unparalleled privacy and security with 100% inbox control. Only approved senders can reach you, and all messages are fully encrypted. Enjoy a distraction-free, password-free experience with no ads or data tracking.

Highlights
  • 100% inbox control with approved senders
  • Password-free authentication via Passkeys
  • End-to-end encryption for secure messaging
  • No ads, no tracking, no data mining
  • Auto-delete trash after 30 days
  • Community recommendations for new senders
Features
Read full description

OptMsg: Private, Secure, Simple Email Everyone else decides what lands in your inbox. A retailer you bought from once. A list you never joined. A message pretending to be your bank. OptMsg puts that decision back with you. OptMsg is patent-pending opt-in email: mail from a sender you have not approved goes straight to Trash, and Trash empties itself after 30 days. You decide who gets in, and you can change your mind at any time. You Decide Who Gets In • Mail from senders you haven't approved goes to Trash, not your Inbox. • Easily grant or revoke access to your inbox. • Auto-delete trash after 30 days—no clutter, no wasted space. Private Always • Fully encrypted for secure messaging between OptMsg users. • Mail you send to an address outside OptMsg may still be read or monetized by that provider. • OptMsg does not scan your emails to sell ads. • No ads. We don't collect your personal data to sell to advertisers. Security First • No Passwords – protect your inbox and your other online accounts • Uses Passkeys for seamless, password-free authentication • Your OptMsg account has no password, so a password stolen from another site can't open your inbox. Simple by Design • Clean, intuitive design for effortless email management. • No complicated settings—just straightforward, secure communication. • Reliable performance to keep your inbox running smoothly. Other Key Features • A new clean, @optmsg.com email address others can trust • Send and receive emails and attachments with ease • Keep your inbox tidy and clean with tags and simple swipe-gestures • Receive important notifications • Manage your contacts • Use Community Recommendations to identify new senders of interest • Make OptMsg your default email app We're constantly improving OptMsg — new features, and steady work on email security. Create Your Account. Your Inbox. Your Rules.

Screenshots

KnowScam Mobile4 screens
OptMsg4 screens

Verdict

The call

The clearest difference is update cadence: KnowScam Mobile at every 2 weeks against OptMsg's monthly. OptMsg's advantage is iOS requirement (15.0 vs 17.0). 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for KnowScam Mobile against 5.0 for OptMsg. Both are backed by a comparable volume of ratings — 13 and 5 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

KnowScam Mobile ships an update every 2 weeks, OptMsg monthly. The most recent releases landed on September 24, 2026 and October 4, 2026 respectively.

Scorecard2 real differences · 8 level
KnowScam Mobile versus OptMsg: the parameters behind the verdict, then further details
ParameterKnowScam MobileOptMsg
PriceFreeFree
Rating5.0 (13 ratings)5.0 (5 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings13 — better5
Update frequencyEvery 2 weeks — betterMonthly
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.015.0 — better
Further details — not scored
Size96 MB61 MB
Age rating4+4+
DeveloperScamnetic, Inc.OptMsg, LLC

Customer experience

KnowScam Mobile

All ratings13 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

OptMsg

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

KnowScam Mobile

No in-app purchases

None

OptMsg

No in-app purchases

Questions

Is KnowScam Mobile free?
KnowScam Mobile is free to download, with no in-app purchases.
Is OptMsg free?
OptMsg is free to download, with no in-app purchases.
Which has better reviews, KnowScam Mobile or OptMsg?
KnowScam Mobile and OptMsg are both rated 5.0 out of 5 on the App Store, from 13 and 5 ratings respectively.
Do KnowScam Mobile or OptMsg have ads?
Neither KnowScam Mobile nor OptMsg shows ads.
Which is updated more often, KnowScam Mobile or OptMsg?
KnowScam Mobile ships an update every 2 weeks, and OptMsg monthly. Most recently, KnowScam Mobile was updated on September 24, 2026 and OptMsg on October 4, 2026.

Other comparisons