# Little Green Button vs InVentry RollCall

The clearest difference is in-app purchases: InVentry RollCall at none against Little Green Button's 1. InVentry RollCall also leads on iOS requirement (13.0 vs 15.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Little Green Button sells 1 in-app purchase, starting at $204.99 per year. InVentry RollCall asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Little Green Button | InVentry RollCall |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Subscription | — |
| Size | 60 MB | 42 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Little Green Button Limited](https://appshunter.io/developer/1509411090) | [inVentry Ltd](https://appshunter.io/developer/529922823) |

## What reviewers say

### Little Green Button

[App page](https://appshunter.io/ios/app/little-green-button/id1509411091)

This safety companion app acts as a panic button and duress alarm system. It allows users to share alerts with a response group and provides access to a management site for managing subscriptions and user keys.

**Highlights:** Panic button functionality, Duress alarm system, Share alerts with response group, Access to management site, Auto-renewable subscription, Supports up to 4 additional users

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Annual Subscription (Seed) | $204.99 | per year |


### InVentry RollCall

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

**In-app purchases:** none


## Frequently asked questions

### Is Little Green Button free?

Little Green Button is free to download, with in-app purchases available.

### Is InVentry RollCall free?

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

### Do Little Green Button or InVentry RollCall have ads?

Neither Little Green Button nor InVentry RollCall shows ads.

### Which is updated more often, Little Green Button or InVentry RollCall?

Little Green Button ships an update every 2 months, and InVentry RollCall every 2 months. Most recently, Little Green Button was updated on November 3, 2026 and InVentry RollCall on November 4, 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.*