# SmartTank Watch vs RMS Delta

The clearest difference is rating: SmartTank Watch at 5.0 against RMS Delta's 1.0. RMS Delta's advantage is update cadence (weekly vs every 9 months). 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.

SmartTank Watch holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

SmartTank Watch ships an update every 9 months, RMS Delta weekly. Both last shipped on November 4, 2026.

## The numbers

| Metric | SmartTank Watch | RMS Delta |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/smarttank-watch/id6477401293/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/rms-delta/id6484267957/reviews) |
| Number of ratings | 1 | 1 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Weekly** |
| Monetization | Free | Free |
| Size | 45 MB | 3 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [TankLink Corporation](https://appshunter.io/developer/1084784645) | [Rochester Sensors, LLC](https://appshunter.io/developer/1006999301) |

## What reviewers say

### SmartTank Watch

[App page](https://appshunter.io/ios/app/smarttank-watch/id6477401293)

Monitor tank levels, temperature, and location remotely. Receive real-time notifications and alerts to prevent run-outs and optimize delivery schedules. Streamline operations and improve inventory management for petroleum and chemical industries.

**Highlights:** Monitor tank levels, temperature, and location, Real-time notifications and alerts, Prevent product run-outs, Optimize delivery scheduling and routes, Access data and reports easily, Wireless monitoring

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

**In-app purchases:** none


### RMS Delta

[App page](https://appshunter.io/ios/app/rms-delta/id6484267957)

This cloud-based platform offers remote telemetry reporting for tank monitoring. It provides scheduled, customized reports and 24/7 access to data for businesses to monitor costs, optimize profits, and improve operational efficiency.

**Highlights:** Cloud-based telemetry reporting, Customizable tank reports, 24/7 remote data access, Cost monitoring and profit optimization, Improved operational efficiency, Route planning optimization

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SmartTank Watch free?

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

### Is RMS Delta free?

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

### Which has better reviews, SmartTank Watch or RMS Delta?

SmartTank Watch is rated higher. SmartTank Watch averages 5.0 out of 5 from 1 ratings, while RMS Delta averages 1.0 from 1 ratings.

### Do SmartTank Watch or RMS Delta have ads?

Neither SmartTank Watch nor RMS Delta shows ads.

### Which is updated more often, SmartTank Watch or RMS Delta?

SmartTank Watch ships an update every 9 months, and RMS Delta weekly. Most recently, SmartTank Watch was updated on November 4, 2026 and RMS Delta on November 4, 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.*