# Smart SF vs Iridium SatFinder

The clearest difference is rating: Smart SF at 4.5 against Iridium SatFinder's 2.5. Smart SF also leads on update cadence (every 2 months vs every 57 months) and iOS requirement (8.0 vs 14.0). 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.

Smart SF holds the better App Store score, 4.5 against 2.5. Both are backed by a comparable volume of ratings — 6 and 6 respectively.

Smart SF ships an update every 2 months, Iridium SatFinder every 57 months. The most recent releases landed on October 7, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | Smart SF | Iridium SatFinder |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (6 ratings)](https://appshunter.io/ios/app/smart-sf/id1391034591/reviews)** | [2.5 (6 ratings)](https://appshunter.io/ios/app/iridium-satfinder/id1528250647/reviews) |
| Number of ratings | 6 | 6 |
| Positive reviews | — | 28.6% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 57 months |
| Monetization | Free | Free |
| Size | 25 MB | 0 MB |
| Requires iOS | **8.0** | 14.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [强 张](https://appshunter.io/developer/1391034590) | [Blue Sky Network](https://appshunter.io/developer/406385782) |

## What reviewers say

### Smart SF

[App page](https://appshunter.io/ios/app/smart-sf/id1391034591)

This utility app uses your device's GPS and sensors to automatically calculate and graphically display the precise elevation, azimuth, and polarization angles needed for satellite dish alignment. It offers real-time online updates for satellite parameters and firmware.

**Highlights:** Automatic angle calculation (elevation, azimuth, polarization), Real-time satellite parameter updates, Graphical display for easy alignment, Firmware updates for the device, Uses GPS and directional sensors

**Features:** macOS Compatibility

**In-app purchases:** none


### Iridium SatFinder

[App page](https://appshunter.io/ios/app/iridium-satfinder/id1528250647)

Track the visibility of Iridium satellites overhead. Identify which satellite is likely serving local Iridium connections. This tool is provided as a service and is not affiliated with Iridium.

**Highlights:** Satellite visibility tracking, Local connection satellite identification, Iridium satellite data, Real-time overhead satellite view

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Smart SF free?

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

### Is Iridium SatFinder free?

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

### Which has better reviews, Smart SF or Iridium SatFinder?

Smart SF is rated higher. Smart SF averages 4.5 out of 5 from 6 ratings, while Iridium SatFinder averages 2.5 from 6 ratings.

### Do Smart SF or Iridium SatFinder have ads?

Neither Smart SF nor Iridium SatFinder shows ads.

### Which is updated more often, Smart SF or Iridium SatFinder?

Smart SF ships an update every 2 months, and Iridium SatFinder every 57 months. Most recently, Smart SF was updated on October 7, 2026 and Iridium SatFinder on October 22, 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.*