Comparison

WhoTam vs E

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

Head to head
About

WhoTam

Identify unknown callers and block spam calls with community-driven ratings. Search for any number to get information and report suspicious activity. Upgrade for advanced features like seeing who searched for you.

Highlights
  • Identify unknown callers
  • Block spam calls
  • Community-driven ratings
  • Report suspicious calls
  • In-app number search
  • See who searched for you (Premium)
Read full description

Save your precious time, get information about an incoming call from an unknown number! Who Tam shows whether the caller has a positive or negative rating, allows you to identify spam calls, and report suspicious calls yourself. The anti-spam database is formed and constantly updated by the user community and developers. You can also use the in-app search and try to find information about any number of interest. Enable spam identification and blocking by accessing Settings -> Phone -> Call Blocking & Identification -> Whotam. Update to PREMIUM and get access to the following features*: โ€ข Information about who searched for you โ€ข Number hidden in search โ€ข Verification of 200 numbers โ€ข Verification of 100 tags *Limits may vary depending on the selected subscription. Privacy Policy: https://whotam.com/foruposts/private-policy License Agreement: https://whotam.com/foruposts/licenzionnoe-soglashenie Support: support@whotam.com (Please note: Payment for auto-renewing subscription to Premium will be charged to your iTunes account upon confirmation of purchase. Go to the Account Settings on your device to manage your subscription.)

About

E

This app provides a secure and convenient authentication system. It uses a challenge-response model where your secret access key is stored on your mobile phone, eliminating the need for complex passwords and protecting against malware. Authorization is a simple process of entering a challenge value and receiving a number-answer.

Highlights
  • High-level security authentication
  • Secret access key stored on mobile
  • Challenge-response authorization
  • No complex passwords needed
  • Malware protection for access key
  • Efficient and economical system
Features
Read full description

1. About E-num -------------- E-num is an up-to-date system of authentication providing high-level security. Security is based on both cryptographic tools and architectural level. A secret access key is stored not on your computer but on your mobile phone. Thus, you can use it to work on different computers. Moreover, your key cannot be damaged or modified by Trojan Hourses and other harmful programs. 2. Authorization process --------------------- E-num is easy to use: there is no need to memorize complicated passwords. The authorization process is based on the challenge-response model. Authorization process by using E-NUM is very simple: on the authorization page the user enters his email and received a Challenge Value. Users launches the E-num application on the mobile phone and enters the Challenge Value. After that a number-answer will be shown on the phone display. User enters the number-answer in the authorization field on the website and gets access to secured sections. 3. Advantages ------------ The key advantage of E-NUM if compared with its analogs is efficiency and economy for both suppliers and consumers. No additional authorizing server is required to implement the E-NUM authorization system on a website of an Internet store, in banking or corporate systems, because all necessary information is stored in the E-NUM database. Data exchange is performed by using E-num interfaces provided by the system via the secure https protocol. Clients use their (Java compatible) mobile phones to get authorized at websites integrated with E-NUM. Users do not need any kind of expensive devices. A unique cipherpad is embedded in the Java application designed for mobile phones.

Screenshots

WhoTam4 screens
E4 screens

Verdict

The call

The clearest difference is review sentiment: E at 100% against WhoTam's 50%. E also leads on in-app purchases (none vs 6) and device support (3 vs 1). On price, update cadence and ads there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. WhoTam sells 6 in-app purchases, starting at $4.19 per month. E asks for nothing beyond the download.

UpkeepUpdate frequency

WhoTam ships an update every 3 weeks, E fortnightly. The most recent releases landed on August 31, 2026 and September 11, 2026 respectively.

Scorecard5 real differences ยท 3 level
WhoTam versus E: the parameters behind the verdict, then further details
ParameterWhoTamE
PriceFreeFree
Positive reviews50.0% of reviews100.0% of reviews โ€” better
Update frequencyEvery 3 weeksFortnightly โ€” better
AdsNoNo
In-app purchasesYesNo โ€” better
MonetizationFreemiumFree โ€” better
DevicesiPhoneiPhone, iPad, iPod โ€” better
Requires iOS16.613.0 โ€” better
Further details โ€” not scored
Size54 MB38 MB
Age rating4+4+
DeveloperPAYMASTER TECHNOLOGIES ELEKTRONIK PAZARLAMA DIS TICARET LIMITED SIRKETIVEBMANI.RU, OOO

Customer experience

WhoTam

Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

E

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

6 purchases

WhoTam

Subscriptions2
  • Premium Monthly$4.191 Month
  • Premium X2 Monthly$8.391 Month
One-time4
  • Premium$4.19
  • Search 100$4.59
  • Premium X2$8.39
Show 1 more
  • Search 500$9.19
None

E

No in-app purchases

Questions

Is WhoTam free?
WhoTam is free to download, with in-app purchases available.
Is E free?
E is free to download, with no in-app purchases.
Do WhoTam or E have ads?
Neither WhoTam nor E shows ads.
Which is updated more often, WhoTam or E?
WhoTam ships an update every 3 weeks, and E fortnightly. Most recently, WhoTam was updated on August 31, 2026 and E on September 11, 2026.

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