# RPM Express vs Watchmark

The clearest difference is rating: Watchmark at 5.0 against RPM Express's 2.8. Watchmark also leads on update cadence (every 4 months vs every 23 months). RPM Express's advantage is iOS requirement (13.0 vs 17.6). On price, ratings volume, 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.

Watchmark holds the better App Store score, 5.0 against 2.8. Both are backed by a comparable volume of ratings — 4 and 4 respectively.

RPM Express ships an update every 23 months, Watchmark every 4 months. The most recent releases landed on October 24, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | RPM Express | Watchmark |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.8 (4 ratings)](https://appshunter.io/ios/app/rpm-express/id1570106238/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/watchmark/id1660117397/reviews)** |
| Number of ratings | 4 | 4 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 23 months | **Every 4 months** |
| Monetization | Free | Free |
| Size | 21 MB | 8 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [DRB Systems, LLC](https://appshunter.io/developer/1360395436) | [Watchmark LLC](https://appshunter.io/developer/1538064423) |

## What reviewers say

### RPM Express

[App page](https://appshunter.io/ios/app/rpm-express/id1570106238)

Manage your car wash payments, purchases, and club memberships with ease. Sign up for exclusive deals, gifts, and free washes through this innovative tunnel car wash app.

**Highlights:** Manage payment information, Track wash purchases, Access club memberships, Sign up for deals and gifts, Receive free washes

**Features:** macOS Compatibility

**In-app purchases:** none


### Watchmark

[App page](https://appshunter.io/ios/app/watchmark/id1660117397)

This business access control system allows global access management for buildings and facilities. It offers fine-grained control over user permissions, schedules, and rules, with options for virtual or physical keypads. The system integrates with existing hardware and cloud services, providing automated locking and event logging.

**Highlights:** Global access management, Fine-grained user permissions, Virtual and physical keypad options, Automated door locking, Cloud service integration, Event logging with snapshots

**In-app purchases:** none


## Frequently asked questions

### Is RPM Express free?

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

### Is Watchmark free?

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

### Which has better reviews, RPM Express or Watchmark?

Watchmark is rated higher. RPM Express averages 2.8 out of 5 from 4 ratings, while Watchmark averages 5.0 from 4 ratings.

### Do RPM Express or Watchmark have ads?

Neither RPM Express nor Watchmark shows ads.

### Which is updated more often, RPM Express or Watchmark?

RPM Express ships an update every 23 months, and Watchmark every 4 months. Most recently, RPM Express was updated on October 24, 2026 and Watchmark on October 2, 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.*