# Iridium Edge Solar Tools vs GrainLink Check

The clearest difference is update cadence: GrainLink Check at every 2 months against Iridium Edge Solar Tools's every 4 months. On price, ads, in-app purchases and device support there is nothing between them.

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

Iridium Edge Solar Tools ships an update every 4 months, GrainLink Check every 2 months. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Iridium Edge Solar Tools | GrainLink Check |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Size | 8 MB | 75 MB |
| Requires iOS | **14.2** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Geoforce](https://appshunter.io/developer/590454557) | [GrainLink Canada Ltd.](https://appshunter.io/developer/1851176896) |

## What reviewers say

### Iridium Edge Solar Tools

[App page](https://appshunter.io/ios/app/iridium-edge-solar-tools/id1528618642)

**Features:** macOS Compatibility

**In-app purchases:** none


### GrainLink Check

[App page](https://appshunter.io/ios/app/grainlink-check/id6754969153)

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

**In-app purchases:** none


## Frequently asked questions

### Is Iridium Edge Solar Tools free?

Iridium Edge Solar Tools is free to download, with no in-app purchases.

### Is GrainLink Check free?

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

### Do Iridium Edge Solar Tools or GrainLink Check have ads?

Neither Iridium Edge Solar Tools nor GrainLink Check shows ads.

### Which is updated more often, Iridium Edge Solar Tools or GrainLink Check?

Iridium Edge Solar Tools ships an update every 4 months, and GrainLink Check every 2 months. Most recently, Iridium Edge Solar Tools was updated on October 27, 2026 and GrainLink Check on October 25, 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.*