# Shelly FMA vs Right On Page Devtools

The clearest difference is device support: Shelly FMA at 3 against Right On Page Devtools's 1. On price, update cadence, 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.

Shelly FMA ships an update every 2 months, Right On Page Devtools every 3 months. The most recent releases landed on November 5, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Shelly FMA | Right On Page Devtools |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.7 (3 ratings)](https://appshunter.io/ios/app/right-on-page-devtools/id6739692384/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | — | Free |
| Size | 29 MB | 3 MB |
| Requires iOS | **15.6** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [SHELLY EUROPE EOOD](https://appshunter.io/developer/1521653049) | [泰宁 陆](https://appshunter.io/developer/591708109) |

## What reviewers say

### Shelly FMA

[App page](https://appshunter.io/ios/app/shelly-fma/id6526479868)

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

**In-app purchases:** none


### Right On Page Devtools

[App page](https://appshunter.io/ios/app/right-on-page-devtools/id6739692384)

This Safari extension brings web development tools directly to your iPhone. View console logs and API requests on the webpage, and inspect or modify CSS elements without needing a computer.

**Highlights:** View console logs on page, See API requests on page, Inspect and change CSS, On-device web debugging, Safari extension

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

**In-app purchases:** none


## Frequently asked questions

### Is Shelly FMA free?

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

### Is Right On Page Devtools free?

Right On Page Devtools is free to download, with no in-app purchases.

### Do Shelly FMA or Right On Page Devtools have ads?

Neither Shelly FMA nor Right On Page Devtools shows ads.

### Which is updated more often, Shelly FMA or Right On Page Devtools?

Shelly FMA ships an update every 2 months, and Right On Page Devtools every 3 months. Most recently, Shelly FMA was updated on November 5, 2026 and Right On Page Devtools on November 4, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*