Comparison

COB vs SMS Spam Armor

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

Head to head
About

COB

This electronic office solution streamlines business operations with digital document management and workflow automation. It aims to enhance efficiency and accessibility for corporate users.

Highlights
  • Electronic office solution
  • Digital document management
  • Workflow automation
  • Business operations enhancement
  • Increased efficiency
Features
Read full description

Giải pháp văn phòng điện tử dành cho doanh nghiệp

About

SMS Spam Armor

This app offers robust protection against text message scams and phishing attempts by filtering unwanted messages directly on your device. It provides customizable blocking rules and multi-layered protection without collecting or processing your personal data.

Highlights
  • On-device message processing
  • Customizable blocking rules
  • Phone number blocking
  • Keyword and pattern recognition
  • Real-time filtering
  • Transparent operation logs
Read full description

Stop Spam. Protect Your Privacy. Stay in Control. Americans lost $470 million to text message scams in 2024. A 400% increase from the previous year. SMS Spam Armor delivers professional grade protection without compromising your privacy. No cloud processing. No data collection. No surveillance. WHY SMS SPAM ARMOR? Your Messages Never Leave Your iPhone Unlike competitors that send your data to remote servers, SMS Spam Armor processes everything locally on your device using Apple's secure IdentityLookup framework. What happens on your iPhone stays on your iPhone. Zero tracking. Zero data collection. Just pure, private spam filtering. You're In Control Create custom blocking rules that match your life. Block entire area codes, filter political spam during election season, or flag specific keywords. You decide what's spam—not some black-box algorithm training on your personal messages. Multi-Layered Protection • Phone number blocking for persistent spammers • Keyword detection for common scam phrases • Pattern recognition for phishing and fraud attempts • Real-time filtering of SMS/MMS from unknown senders Built Using Official Apple Frameworks SMS Spam Armor integrates seamlessly with your iPhone's Messages app using Apple's IdentityLookup framework. No performance issues. No battery drain. Just professional protection that works the way Apple intended. WHAT GETS FILTERED • SMS/MMS from unknown senders • Messages containing spam keywords or scam patterns • Bulk marketing texts and phishing attempts WHAT STAYS PRIVATE • iMessage conversations (end-to-end encrypted, can't be filtered) • Texts from your contacts • Numbers you've previously communicated with TRANSPARENT OPERATION • See exactly what gets blocked and why • Review blocked messages before deleting • Export your filtering rules anytime • Adjust sensitivity to match your preferences • No hidden algorithms making decisions for you THE BOTTOM LINE For less than the cost of a single coffee per year, protect yourself from the financial and emotional toll of text scams. No cloud subscriptions. No surveillance. Just simple, powerful, private spam protection. Download SMS Spam Armor today. Your messages. Your rules. Your privacy.

Screenshots

COB4 screens
SMS Spam Armor4 screens

Verdict

The call

The clearest difference is in-app purchases: COB at none against SMS Spam Armor's 1. COB also leads on device support (3 vs 1) and iOS requirement (15.5 vs 17.6). SMS Spam Armor's advantage is update cadence (every 11 days vs every 6 weeks). On price, rating, ratings volume and ads 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. SMS Spam Armor sells 1 in-app purchase, starting at $4.99 per year. COB asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for COB against 5.0 for SMS Spam Armor. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

UpkeepUpdate frequency

COB ships an update every 6 weeks, SMS Spam Armor every 11 days. The most recent releases landed on September 8, 2026 and June 2, 2026 respectively.

Scorecard5 real differences · 5 level
COB versus SMS Spam Armor: the parameters behind the verdict, then further details
ParameterCOBSMS Spam Armor
PriceFreeFree
Rating5.0 (2 ratings)5.0 (1 ratings)
Positive reviews—100.0% of reviews
Number of ratings2 — better1
Update frequencyEvery 6 weeksEvery 11 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.5 — better17.6
Further details — not scored
Size45 MB6 MB
Age rating4+4+
DeveloperCo-opBankNitron Digital LLC

Customer experience

COB

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

SMS Spam Armor

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

COB

No in-app purchases

1 purchases

SMS Spam Armor

Subscriptions1
  • SMS Spam Armor Pro Annual$4.991 Year

Questions

Is COB free?
COB is free to download, with no in-app purchases.
Is SMS Spam Armor free?
SMS Spam Armor is free to download, with in-app purchases available.
Which has better reviews, COB or SMS Spam Armor?
COB and SMS Spam Armor are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.
Do COB or SMS Spam Armor have ads?
Neither COB nor SMS Spam Armor shows ads.
Which is updated more often, COB or SMS Spam Armor?
COB ships an update every 6 weeks, and SMS Spam Armor every 11 days. Most recently, COB was updated on September 8, 2026 and SMS Spam Armor on June 2, 2026.

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