# REF90 Grassroots vs REF!

The clearest difference is in-app purchases: REF90 Grassroots at none against REF!'s 2. REF!'s advantage is update cadence (every 6 days vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. REF! sells 2 in-app purchases, starting at $2.99 per month. REF90 Grassroots asks for nothing beyond the download.

REF90 Grassroots ships an update every 2 months, REF! every 6 days. The most recent releases landed on September 8, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | REF90 Grassroots | REF! |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 days** |
| Size | 7 MB | 17 MB |
| Requires iOS | 18.0 | 18.0 |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Instride Ltd](https://appshunter.io/developer/1844228825) | [Rodrigo Vicente Valmorisco](https://appshunter.io/developer/1896652752) |

## What reviewers say

### REF90 Grassroots

[App page](https://appshunter.io/ios/app/ref90-grassroots/id6761438884)

**Features:** Apple Watch app

**In-app purchases:** none


### REF!

[App page](https://appshunter.io/ios/app/ref/id6769361893)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| REF! PRO Monthly | $2.99 | per month |
| REF! PRO Yearly | $14.99 | per year |


## Frequently asked questions

### Is REF90 Grassroots free?

REF90 Grassroots is free to download, with no in-app purchases.

### Is REF! free?

REF! is free to download, with in-app purchases available.

### Do REF90 Grassroots or REF! have ads?

Neither REF90 Grassroots nor REF! shows ads.

### Which is updated more often, REF90 Grassroots or REF!?

REF90 Grassroots ships an update every 2 months, and REF! every 6 days. Most recently, REF90 Grassroots was updated on September 8, 2026 and REF! on September 14, 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.*