# Sentry Mobile vs Metropolis

The clearest difference is rating: Metropolis at 4.9 against Sentry Mobile's 2.8. Metropolis also leads on update cadence (every 5 days vs monthly) and monetization model (free vs free with in-app purchases). Sentry Mobile's advantage is iOS requirement (12.0 vs 16.6). On price, review sentiment, ads and in-app purchases there is nothing between them.

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

Metropolis holds the better App Store score, 4.9 against 2.8. That said, the two scores are not equally well evidenced: Metropolis has 45K ratings behind it against 112, so its average is the more settled of the two. Written reviews split almost evenly too, at 25% and 26% positive.

Sentry Mobile ships an update monthly, Metropolis every 5 days. The most recent releases landed on October 23, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Sentry Mobile | Metropolis |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.8 (112 ratings)](https://appshunter.io/ios/app/sentry-mobile/id990517203/reviews) | **[4.9 (45K ratings)](https://appshunter.io/ios/app/metropolis-remarkable-parking/id1556970037/reviews)** |
| Number of ratings | 112 | **45K** |
| Positive reviews | 24.6% of reviews | **25.6% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 5 days** |
| Monetization | Free with in-app purchases | **Free** |
| Best chart rank | — | **#12** |
| Size | 22 MB | 94 MB |
| Requires iOS | **12.0** | 16.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Municipal Parking Services](https://appshunter.io/developer/919616529) | [Metropolis Technologies, Inc.](https://appshunter.io/developer/1556970039) |

## What reviewers say

### Sentry Mobile

[App page](https://appshunter.io/ios/app/sentry-mobile/id990517203)

This app allows you to pay for parking meters in real-time directly from your smartphone. View nearby meters, check space availability, and receive alerts when your parking time is about to expire. It also features a "Where's my car" function and an optional auto-pay program.

**Highlights:** Real-time parking meter interaction, Buy parking time remotely, Map of nearby meters, Parking space availability view, Automatic parking session alerts, "Where's my car" navigation, Concierge Autopay Program

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Convenient auto pay feature
- 👍 Easy to use
- 👍 Seamless parking experience
- 🚀 Intuitive app interface
- 👍 Helpful concierge option

**What reviewers complain about**

- 🐛 Frequent app crashes
- 🐛 Unreliable parking session tracking
- 🐛 Inability to add/save credit cards
- 🐛 Confusing user interface
- 🐛 Inconsistent app functionality

**Reported bugs**

- App fails to recognize active parking sessions
- Inability to extend parking time through the app
- App crashes when trying to add payment information
- Parking spots not displayed accurately in the app
- Inconsistent behavior when trying to pay for parking

**Requested features**

- Allow saving credit card information
- Improve app stability and reliability
- Enhance user interface and navigation
- Provide better parking session management
- Integrate with more payment options (e.g., Apple Pay)


### Metropolis

[App page](https://appshunter.io/ios/app/metropolis-remarkable-parking/id1556970037)

**Currently charting:** #12 Top Free · Navigation (US App Store)

Effortlessly pay for parking by linking your license plate and payment method. Simply drive in and out of participating locations, with transparent pricing and remote session management. Discover discounts at partner retailers and easily manage rental car parking.

**Highlights:** Automated payment upon exit, Transparent pricing and estimates, Remote session extension, Discount QR code scanning, Rental car management, Parking history access

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Seamless parking experience
- 🚗 Convenient drive-in, drive-out
- 💳 Easy payment through app
- 📍 Helpful for finding parking spots

**What reviewers complain about**

- 🚫 Lack of customer support
- 💰 Unexpected/hidden charges
- 🤖 Unreliable camera/sensor detection
- 🤔 Confusing app interface
- 🔒 Privacy concerns with data collection

**Reported bugs**

- Ongoing charges after leaving the lot
- App crashes when checking past visits

**Requested features**

- Option to manually end parking session
- Ability to share/transfer parking sessions
- Clearer pricing and rate transparency


## Frequently asked questions

### Is Sentry Mobile free?

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

### Is Metropolis free?

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

### Which has better reviews, Sentry Mobile or Metropolis?

Metropolis is rated higher. Sentry Mobile averages 2.8 out of 5 from 112 ratings, while Metropolis averages 4.9 from 45K ratings.

### Do Sentry Mobile or Metropolis have ads?

Neither Sentry Mobile nor Metropolis shows ads.

### Which is updated more often, Sentry Mobile or Metropolis?

Sentry Mobile ships an update monthly, and Metropolis every 5 days. Most recently, Sentry Mobile was updated on October 23, 2026 and Metropolis on October 31, 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.*