# Gate Sentry vs Mekos Mobile Letter

The clearest difference is price: Gate Sentry at Free against Mekos Mobile Letter's $9.99. Gate Sentry also leads on iOS requirement (14.0 vs 17.0). Mekos Mobile Letter's advantage is update cadence (weekly vs every 3 weeks). On ads, in-app purchases and device support there is nothing between them.

Gate Sentry is free to download; Mekos Mobile Letter costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Gate Sentry ships an update every 3 weeks, Mekos Mobile Letter weekly. The most recent releases landed on October 26, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Gate Sentry | Mekos Mobile Letter |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| Rating | **[4.8 (11K ratings)](https://appshunter.io/ios/app/gate-sentry/id896306989/reviews)** | — |
| Number of ratings | **11K** | — |
| Positive reviews | 56.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | Free | — |
| Size | 13 MB | 2 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Gate Sentry](https://appshunter.io/developer/1002264825) | [Mekos Mobile Apps LLC](https://appshunter.io/developer/975350640) |

## What reviewers say

### Gate Sentry

[App page](https://appshunter.io/ios/app/gate-sentry/id896306989)

Streamline visitor access for guarded properties using mobile software. Manage guest lists remotely, receive arrival notifications, and enable security personnel to grant access in seconds.

**Highlights:** Eliminates costly hardware, Mobile and tablet software integration, Remote guest list management, Real-time security guard updates, Arrival notifications, Visitor history access, Fast visitor lookup

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 🚀 Easy to use
- 🔒 Improves security
- 👍 Convenient for residents
- 👍 Helpful notifications

**What reviewers complain about**

- 🐛 Glitchy date/time feature
- 🐛 Login issues after updates
- 🐛 Crashes on newer devices
- 🔍 Limited name/character input

**Reported bugs**

- App not opening after recent update
- Login not working on new iPhones
- Notifications not displaying guest details

**Requested features**

- Allow special characters and spaces in names
- Implement calendar-based date selection
- Add support for company/vendor names
- Enable recurring visitor scheduling


### Mekos Mobile Letter

[App page](https://appshunter.io/ios/app/mekos-mobile-letter/id6776809658)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Gate Sentry free?

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

### Is Mekos Mobile Letter free?

Mekos Mobile Letter costs $9.99, with no in-app purchases.

### Do Gate Sentry or Mekos Mobile Letter have ads?

Neither Gate Sentry nor Mekos Mobile Letter shows ads.

### Which is updated more often, Gate Sentry or Mekos Mobile Letter?

Gate Sentry ships an update every 3 weeks, and Mekos Mobile Letter weekly. Most recently, Gate Sentry was updated on October 26, 2026 and Mekos Mobile Letter on October 21, 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.*