# m/z vs RSS Go

The clearest difference is rating: RSS Go at 5.0 against m/z's 3.6. m/z's advantage is update cadence (every 5 weeks vs every 3 months) and ratings volume (5 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

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

RSS Go holds the better App Store score, 5.0 against 3.6. That said, the two scores are not equally well evidenced: m/z has 5 ratings behind it against 1, so its average is the more settled of the two.

m/z ships an update every 5 weeks, RSS Go every 3 months. The most recent releases landed on September 25, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | m/z | RSS Go |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.6 (5 ratings)](https://appshunter.io/ios/app/mz/id1117272212/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/rss-go/id6759298389/reviews)** |
| Number of ratings | **5** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 3 months |
| Monetization | Free | Free |
| Size | 3.6 GB | 78 MB |
| Requires iOS | **6.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Kirill Blinov](https://appshunter.io/developer/630833420) | [The Regents of the University of California (UCOP)](https://appshunter.io/developer/916274264) |

## What reviewers say

### m/z

[App page](https://appshunter.io/ios/app/mz/id1117272212)

Instantly search a vast database of chemical structures based on their exact mass. This tool helps identify compounds with masses under 340 Da, drawing from millions of entries.

**Highlights:** Find chemical structures by exact mass, Search database of known structures, Database includes over 35 million compounds, Supports masses under 340 Da, Utilizes PubChem compounds database

**Features:** macOS Compatibility

**In-app purchases:** none


### RSS Go

[App page](https://appshunter.io/ios/app/rss-go/id6759298389)

This app brings your organization's forms and workflows to the field, enabling teams to complete tasks on-site. Capture, complete, and submit critical information in real-time from a phone or tablet, eliminating delays and rework.

**Highlights:** On-site task completion, Real-time data capture, Incident reporting, Risk management processes, Seamless data syncing, Audit-ready information

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

**In-app purchases:** none


## Frequently asked questions

### Is m/z free?

m/z is free to download, with no in-app purchases.

### Is RSS Go free?

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

### Which has better reviews, m/z or RSS Go?

RSS Go is rated higher. m/z averages 3.6 out of 5 from 5 ratings, while RSS Go averages 5.0 from 1 ratings.

### Do m/z or RSS Go have ads?

Neither m/z nor RSS Go shows ads.

### Which is updated more often, m/z or RSS Go?

m/z ships an update every 5 weeks, and RSS Go every 3 months. Most recently, m/z was updated on September 25, 2026 and RSS Go on October 16, 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.*