# Coverage Map vs iSIU

The clearest difference is ads: iSIU at none against Coverage Map's shown. iSIU also leads on update cadence (daily vs fortnightly). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Coverage Map ships an update fortnightly, iSIU daily. The most recent releases landed on October 13, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Coverage Map | iSIU |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (798 ratings)](https://appshunter.io/ios/app/coverage-map/id6447767167/reviews)** | — |
| Number of ratings | **798** | — |
| Positive reviews | 67.6% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | **Daily** |
| Monetization | Free with in-app purchases | — |
| Size | 69 MB | 61 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Coverage Map LLC](https://appshunter.io/developer/1682531184) | [Green Grid Inc.](https://appshunter.io/developer/1715784766) |

## What reviewers say

### Coverage Map

[App page](https://appshunter.io/ios/app/coverage-map/id6447767167)

This app provides a crowdsourced map of cellular network performance and coverage across the US, Canada, UK, and Puerto Rico. Users can view real-time speed test data, compare carrier performance, and check signal strength in specific areas. It also includes a built-in speed test to contribute to the map.

**Highlights:** Crowdsourced speed test map, Real-time performance data, Download, upload, and latency details, Carrier and network type filters, Built-in speed test functionality, Signal strength mapping (US only), Data-driven coverage reports (US only)

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 User-friendly
- 🚀 Large data collection
- 👍 Detailed coverage maps
- 👍 Crowdsourced data
- 🚀 Intuitive interface

**What reviewers complain about**

- 🐛 Crashes and bugs
- 🔋 High data usage
- 🔍 Inaccurate coverage maps in some areas
- 🔍 Missing some carrier information
- 🔍 Limited options for customization

**Reported bugs**

- Frequent crashes when viewing maps
- Speed test failures and timeouts
- Inconsistent speed test results
- Incorrect location detection

**Requested features**

- Low data mode
- Offline coverage map downloads
- Ability to set test duration and frequency
- Display cell tower locations
- Expand to international coverage


### iSIU

[App page](https://appshunter.io/ios/app/isiu/id6471646259)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Coverage Map free?

Coverage Map is free to download, with no in-app purchases.

### Is iSIU free?

iSIU is free to download, with no in-app purchases.

### Do Coverage Map or iSIU have ads?

Coverage Map shows ads; iSIU does not.

### Which is updated more often, Coverage Map or iSIU?

Coverage Map ships an update fortnightly, and iSIU daily. Most recently, Coverage Map was updated on October 13, 2026 and iSIU on September 29, 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.*