Comparison

Who Called Me vs ZeroScan

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

Head to head
About

Who Called Me

Identify unknown callers by searching phone numbers. This app uses a comprehensive database, supplemented by social media and geo-data, to provide real results. Keep track of your search history directly within the application.

Highlights
  • Identify unknown callers
  • Comprehensive phone number database
  • Social media and geo-data integration
  • Search history tracking
  • Copy and paste number search
Features
Read full description

Have you ever missed a call from a number you don't recognize, and want to know who called? Now you can find out, with Who Called Me. All new version 2.0! Rewritten from the ground up using a comprehensive and up to date phone number database. No more crowdsourcing data - you'll always get real results from the phone company, supplemented with social media and geo-data when available. Copy and paste from the phone app for quick results. Your search history is kept in app so you'll always know who called. Now you can know who's calling you - with Who Called Me. The app download includes credits for 4 number searches and supports US phone numbers.

About

ZeroScan

Discover network devices and their services effortlessly. This tool listens for broadcasting zeroconf services, displaying IP addresses and open ports without active probing. Customize scan intervals and result display for a seamless network overview.

Highlights
  • Zeroconf (mDNS, DNS-SD, Bonjour) service discovery
  • Automatic network rescanning
  • Customizable scan intervals
  • Adjustable result display duration
  • Clipboard copy customization
  • Manual service searching
Features
Read full description

ZeroScan finds devices on your network that advertise Bonjour (mDNS / DNS-SD / zeroconf) services. It shows each one’s name, IP address, the services it offers and the ports they’re on, without probing your network. See what’s on your network Watches for 85 service types, including SSH, HTTP, AirPlay, printers, HomeKit and file sharing. You can add any other service type in preferences. Icons show what kind of device each one is likely to be: computer, phone, TV, printer, camera, router, storage and more. Shows each service’s TXT record, so you can see model names, firmware versions and device IDs. Results refresh on their own. You choose the rescan interval and how long a device stays listed after it stops advertising. Spot what changed Save a snapshot of a network and name it, like “Home” or “Office.” ZeroScan suggests which saved network you’re probably on. Compare the live scan with any saved snapshot. Devices are marked new, changed or gone, along with the services and ports that were added, removed or moved. “Show Changes Only” hides everything that hasn’t changed. Rename, merge or delete saved networks and snapshots. Take results with you Export the full scan as CSV or JSON. Copy a hostname, IP address or port list in the format you pick. On iOS, open HTTP, HTTPS, SSH and SFTP services directly in the app that handles them. What ZeroScan isn’t ZeroScan isn’t an IP scanner. It listens for devices that announce themselves and never probes addresses. A device that doesn’t advertise one of the services ZeroScan watches for won’t appear. Privacy ZeroScan collects no data and sends nothing off your device. Your snapshots and preferences are saved on the device and nowhere else.

Screenshots

Who Called Me2 screens
ZeroScan4 screens

Verdict

The call

The clearest difference is review sentiment: ZeroScan at 100% against Who Called Me's 2%. ZeroScan also leads on rating (5.0 vs 1.3) and in-app purchases (none vs 1). Who Called Me's advantage is ratings volume (12 vs 3) and iOS requirement (7.0 vs 17.0). On price, ads 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

Who Called Me costs $0.99 and ZeroScan $0.99 up front. Who Called Me sells 1 one-off in-app purchase. ZeroScan asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

ZeroScan holds the better App Store score, 5.0 against 1.3. Both are backed by a comparable volume of ratings — 12 and 3 respectively. Written reviews point the same way: 2% of Who Called Me's written reviews are positive against 100% of ZeroScan's.

UpkeepUpdate frequency

Who Called Me ships an update every 33 months, ZeroScan every 6 months. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

Scorecard7 real differences · 3 level
Who Called Me versus ZeroScan: the parameters behind the verdict, then further details
ParameterWho Called MeZeroScan
Price$0.99$0.99
Rating1.3 (12 ratings)5.0 (3 ratings) — better
Positive reviews1.7% of reviews100.0% of reviews — better
Number of ratings12 — better3
Update frequencyEvery 33 monthsEvery 6 months — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPodiPhone, iPad, Mac — better
Requires iOS7.0 — better17.0
Further details — not scored
Size3 MB1 MB
Age rating4+4+
DeveloperLTS Inc.Jordan Parsons

Customer experience

Who Called Me

All ratings12 ratings
Positive8.3%
Neutral0.0%
Negative91.7%
Written reviews58 reviews
Positive1.7%
Neutral1.7%
Negative96.6%

ZeroScan

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Who Called Me

Reported bugs

8 issues
  • App does not work
  • Search found nothing
  • Numbers come up Unknown
  • Charged for searches
  • App crashes constantly
Show 3 more
  • App locks up and shuts down
  • Does not provide claimed information
  • Signed up for additional services

Requested features

5 requests
  • Support for UK numbers
  • Clearer pricing upfront
  • Tutorial or help section
  • Information on who called from 800 numbers
  • Previous functionality restored

ZeroScan

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Who Called Me

One-time1
  • 4-credit search pack$0.99
None

ZeroScan

No in-app purchases

Questions

Is Who Called Me free?
Who Called Me costs $0.99, and also offers in-app purchases.
Is ZeroScan free?
ZeroScan costs $0.99, with no in-app purchases.
Which has better reviews, Who Called Me or ZeroScan?
ZeroScan is rated higher. Who Called Me averages 1.3 out of 5 from 12 ratings, while ZeroScan averages 5.0 from 3 ratings.
Do Who Called Me or ZeroScan have ads?
Neither Who Called Me nor ZeroScan shows ads.
Which is updated more often, Who Called Me or ZeroScan?
Who Called Me ships an update every 33 months, and ZeroScan every 6 months. Most recently, Who Called Me was updated on November 6, 2026 and ZeroScan on November 3, 2026.

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