# Followgreen vs Cortex

Followgreen and Cortex are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Followgreen ships an update every 6 weeks, Cortex monthly. The most recent releases landed on September 12, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Followgreen | Cortex |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Monthly** |
| Size | 53 MB | 40 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [FOLLOWGREEN SMART CITY SOLUTIONS I.K.E.](https://appshunter.io/developer/1478606192) | [KIOUR PC](https://appshunter.io/developer/1657350555) |

## What reviewers say

### Followgreen

[App page](https://appshunter.io/ios/app/followgreen/id1478606193)

**Features:** macOS Compatibility

**In-app purchases:** none


### Cortex

[App page](https://appshunter.io/ios/app/cortex/id6444849957)

**In-app purchases:** none


## Frequently asked questions

### Is Followgreen free?

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

### Is Cortex free?

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

### Do Followgreen or Cortex have ads?

Neither Followgreen nor Cortex shows ads.

### Which is updated more often, Followgreen or Cortex?

Followgreen ships an update every 6 weeks, and Cortex monthly. Most recently, Followgreen was updated on September 12, 2026 and Cortex on September 19, 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.*