Comparison

ZapAtlas ™ vs CellMapper

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

Head to head
About

ZapAtlas ™

Explore power-line maps and estimate potential electromagnetic field (EMF) exposure from your home. Measure EMF radiation directly on the map without needing a physical device. Share detailed reports and receive alerts for high EMF readings.

Highlights
  • Explore power-line maps
  • Estimate EMF exposure
  • Measure EMF directly on map
  • Search global addresses
  • Save favorite locations
  • Share EMF reports
  • Receive GPS-based alerts
Features
Read full description

ZapAtlas™ - EMF Map allows the user to explore power-line maps & estimate potential exposure to Electromagnetic Fields (EMF). Stay home and measure EMF radiation in “milligauss” units directly on the map, without having to go there with a physical EMF meter or EMF detector yourself. Search for addresses anywhere in the world, and pull from our live database of over 20 million power-line objects. Create pins to save favorite searches and easily return back to them on the map. An EMF reader in your messages! Easily share maps and EMF measurements in a “Zap Report” with friends and family via email, text message, AirDrop, etc. Premium Features: Unlimited scrolling. Explore your EMF map anywhere without boundaries. Unlock premium address searches with pro geocoding. Extended zoom out. Enlarge 2x wider map view. In GPS mode, ZapAtlas™ - EMF Map can follow the user’s location and generate a vibrating “Zap Alert” when a high EMF reading is detected. Share detailed Zap Reports including power-line distance & voltage. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

CellMapper

Locate nearby cellular towers on an interactive map, providing details on 5G, 4G, 3G, and 2G networks. Enhance your mobile signal or explore network coverage in your area with real-time data and tower information.

Highlights
  • Real-time tower locations
  • 5G, 4G, 3G, 2G tower details
  • Interactive map integration
  • Detailed tower information
  • Network coverage exploration
Features
Read full description

Cellular Tower & Signal Finder is the ultimate solution to track and locate nearby cell towers on an interactive map. Whether you're looking to boost your mobile signal or simply curious about network coverage in your area, this app provides accurate details of 5G, 4G, 3G, and 2G towers. Key Features: Real-Time Tower Locations: View nearby cell towers for all major network types, including 5G, 4G, 3G, and 2G. Detailed Tower Information: Access detailed information like tower ID, signal strength, area, and network provider. Map Integration: Seamlessly locate towers on a live map with an intuitive interface. Explore network coverage on map with Cellular Tower & Signal Finder today! Note- Premium Subscription is required to use advanced features such as tower details and filter. Privacy: https://celltower.bravycode.com/privacy.html Terms: https://celltower.bravycode.com/terms.html

Screenshots

ZapAtlas ™4 screens
CellMapper4 screens

Verdict

The call

The clearest difference is review sentiment: ZapAtlas ™ at 50% against CellMapper's 6%. ZapAtlas ™ also leads on rating (4.9 vs 4.0). CellMapper's advantage is ratings volume (682 vs 12) and iOS requirement (14.0 vs 17.0). On price, update cadence, ads and in-app purchases 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. ZapAtlas ™ sells 2 in-app purchases, starting at $1.99 per 7 days and CellMapper sells 3 in-app purchases, starting at $7.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

ZapAtlas ™ holds the better App Store score, 4.9 against 4.0. That said, the two scores are not equally well evidenced: CellMapper has 682 ratings behind it against 12, so its average is the more settled of the two. Written reviews point the same way: 50% of ZapAtlas ™'s written reviews are positive against 6% of CellMapper's.

UpkeepUpdate frequency

ZapAtlas ™ ships an update every 5 weeks, CellMapper every 3 weeks. The most recent releases landed on June 1, 2026 and September 25, 2026 respectively.

Scorecard4 real differences · 6 level
ZapAtlas ™ versus CellMapper: the parameters behind the verdict, then further details
ParameterZapAtlas ™CellMapper
PriceFreeFree
Rating4.9 (12 ratings) — better4.0 (682 ratings)
Positive reviews50.0% of reviews — better6.3% of reviews
Number of ratings12682 — better
Update frequencyEvery 5 weeksEvery 3 weeks — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.014.0 — better
Further details — not scored
Size44 MB58 MB
Age rating4+4+
DeveloperPaul WarnerHarshit Tyagi

Customer experience

ZapAtlas ™

All ratings12 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

CellMapper

All ratings682 ratings
Positive74.3%
Neutral7.3%
Negative18.3%
Written reviews126 reviews
Positive6.3%
Neutral2.4%
Negative91.3%

Bugs and requests

ZapAtlas ™

Not enough reviews yet to summarise bugs or requests.

CellMapper

Reported bugs

10 issues
  • Cell towers not loading or displaying
  • App crashes and freezing
  • Map zoom functionality not working
  • Location detection failing
  • Inconsistent tower data between free and paid versions
Show 5 more
  • Lock icons appearing on all towers without explanation
  • Towers appearing in impossible locations
  • Slow map performance and lag
  • App asking for rating before any usage
  • Subscription not syncing across devices

Requested features

12 requests
  • Free trial period before requiring payment
  • Carrier identification for each tower
  • Network type filtering (4G, 5G, LTE, 3G)
  • Signal strength visualization
  • Ability to manually select preferred towers
Show 7 more
  • Location search functionality
  • Feature parity with Android version
  • Monthly subscription option instead of one-time payment
  • Login system for cross-device access
  • Data export/download capability
  • Integration with actual carrier coverage maps
  • Verification of tower accuracy

In-app purchases

2 purchases

ZapAtlas ™

Subscriptions2
  • ZapAtlas Premium Weekly$1.997 Days
  • ZapAtlas Premium Monthly$4.991 Month
3 purchases

CellMapper

Subscriptions2
  • Weekly3 Days trial$7.997 Days
  • Yearly3 Days trial$24.991 Year
One-time1
  • Lifetime Plan$29.99

Questions

Is ZapAtlas ™ free?
ZapAtlas ™ is free to download, with in-app purchases available.
Is CellMapper free?
CellMapper is free to download, with in-app purchases available.
Which has better reviews, ZapAtlas ™ or CellMapper?
ZapAtlas ™ is rated higher. ZapAtlas ™ averages 4.9 out of 5 from 12 ratings, while CellMapper averages 4.0 from 682 ratings.
Do ZapAtlas ™ or CellMapper have ads?
Neither ZapAtlas ™ nor CellMapper shows ads.
Which is updated more often, ZapAtlas ™ or CellMapper?
ZapAtlas ™ ships an update every 5 weeks, and CellMapper every 3 weeks. Most recently, ZapAtlas ™ was updated on June 1, 2026 and CellMapper on September 25, 2026.

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