# λ | Cortex Go vs InVentry RollCall

The clearest difference is iOS requirement: λ | Cortex Go at 9.0 against InVentry RollCall's 13.0. 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.

λ | Cortex Go ships an update every 3 months, InVentry RollCall every 2 months. The most recent releases landed on October 4, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | λ | Cortex Go | InVentry RollCall |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/cortex-go/id1460785740/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 37.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 28 MB | 42 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [adata ltd](https://appshunter.io/developer/372163703) | [inVentry Ltd](https://appshunter.io/developer/529922823) |

## What reviewers say

### λ | Cortex Go

[App page](https://appshunter.io/ios/app/cortex-go/id1460785740)

Access and manage your video surveillance system remotely. View live feeds, playback recordings, and receive instant alerts for motion or alarms. Supports multiple NVR models and offers advanced features like digital zoom and PTZ control.

**Highlights:** Live video streaming, Video playback and recording, Push notifications for alarms/motion, Digital zoom and PTZ control, Multi-site connectivity, Instant video snapshots and sharing, P2P connectivity for remote setup

**Features:** macOS Compatibility

**In-app purchases:** none


### InVentry RollCall

[App page](https://appshunter.io/ios/app/inventry-rollcall/id6737413948)

**In-app purchases:** none


## Frequently asked questions

### Is λ | Cortex Go free?

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

### Is InVentry RollCall free?

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

### Do λ | Cortex Go or InVentry RollCall have ads?

Neither λ | Cortex Go nor InVentry RollCall shows ads.

### Which is updated more often, λ | Cortex Go or InVentry RollCall?

λ | Cortex Go ships an update every 3 months, and InVentry RollCall every 2 months. Most recently, λ | Cortex Go was updated on October 4, 2026 and InVentry RollCall on October 3, 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.*