# ZapAtlas ™ vs CellMapper

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.

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.

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.

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.

## The numbers

| Metric | ZapAtlas ™ | CellMapper |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (12 ratings)](https://appshunter.io/ios/app/zapatlas-emf-map/id6443493102/reviews)** | [4.0 (682 ratings)](https://appshunter.io/ios/app/cellmapper/id6733219269/reviews) |
| Number of ratings | 12 | **682** |
| Positive reviews | **50.0% of reviews** | 6.3% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 3 weeks** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 44 MB | 58 MB |
| Requires iOS | 17.0 | **14.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Paul Warner](https://appshunter.io/developer/1646511514) | [Harshit Tyagi](https://appshunter.io/developer/1776912818) |

## What reviewers say

### ZapAtlas ™

[App page](https://appshunter.io/ios/app/zapatlas-emf-map/id6443493102)

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:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ZapAtlas Premium Weekly | $1.99 | per 7 days |
| ZapAtlas Premium Monthly | $4.99 | per month |


### CellMapper

[App page](https://appshunter.io/ios/app/cellmapper/id6733219269)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $7.99 | per 7 days |
| Yearly | $24.99 | per year |
| Lifetime Plan | $29.99 | one-time |

**What reviewers like**

- 👍 Clean and intuitive UI design
- ⚡ Stable performance without crashes
- 🗺️ Helpful for understanding cellular infrastructure
- 🔍 Useful for comparing carrier coverage across locations
- 📊 Proper tower display and filtering functionality

**What reviewers complain about**

- 💰 Extremely expensive pricing ($20+ paywall)
- 🔒 Most features locked behind premium subscription
- 📱 Misleading freemium model with no usable free features
- ❌ Inaccurate or fabricated tower data
- 📍 Shows towers in impossible locations (fields, houses, water)

**Reported bugs**

- 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

**Requested features**

- 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


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*