# Perimeter Mobile vs TMLN

The clearest difference is in-app purchases: Perimeter Mobile at none against TMLN's 2. Perimeter Mobile also leads on ads (none vs shown). TMLN's advantage is update cadence (every 5 days vs every 2 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. TMLN sells 2 in-app purchases, starting at $9.99 per month. Perimeter Mobile asks for nothing beyond the download.

Perimeter Mobile ships an update every 2 months, TMLN every 5 days. The most recent releases landed on September 21, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Perimeter Mobile | TMLN |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (3 ratings)](https://appshunter.io/ios/app/perimeter-mobile/id1562227654/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 5 days** |
| Monetization | Free | — |
| Size | 80 MB | 46 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Perimeter, Inc.](https://appshunter.io/developer/6780993903) | [Magee Productions LLC](https://appshunter.io/developer/1869427728) |

## What reviewers say

### Perimeter Mobile

[App page](https://appshunter.io/ios/app/perimeter-mobile/id1562227654)

This private software tool is licensed by government Public Safety agencies for internal use by authorized personnel. It is not available to the general public and does not provide access to government information or services.

**Highlights:** Internal use for Public Safety agencies, Restricted access for authorized personnel, Private software tool, Not for public use, Contact sales for department inquiries

**In-app purchases:** none


### TMLN

[App page](https://appshunter.io/ios/app/tmln/id6757876032)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TMLN Pro | $9.99 | per month |
| TMLN Pro | $99.00 | per year |


## Frequently asked questions

### Is Perimeter Mobile free?

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

### Is TMLN free?

TMLN is free to download, with in-app purchases available.

### Do Perimeter Mobile or TMLN have ads?

TMLN shows ads; Perimeter Mobile does not.

### Which is updated more often, Perimeter Mobile or TMLN?

Perimeter Mobile ships an update every 2 months, and TMLN every 5 days. Most recently, Perimeter Mobile was updated on September 21, 2026 and TMLN on September 17, 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.*