# GRIDD PRO vs StayGray

The clearest difference is in-app purchases: GRIDD PRO at none against StayGray's 3. GRIDD PRO also leads on iOS requirement (13.0 vs 18.0). StayGray's advantage is update cadence (fortnightly vs every 5 months). On price, ads and device support there is nothing between them.

Both are free to download. StayGray sells 3 in-app purchases, starting at $1.99 per month. GRIDD PRO asks for nothing beyond the download.

GRIDD PRO ships an update every 5 months, StayGray fortnightly. The most recent releases landed on September 14, 2026 and August 19, 2026 respectively.

## The numbers

| Metric | GRIDD PRO | StayGray |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/staygray/id6757358852/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 66.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Fortnightly** |
| Monetization | — | Free with in-app purchases |
| Size | 17 MB | 21 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 12+ |
| Developer | [Violence Prevention Network gGmbH](https://appshunter.io/developer/1752082728) | [MATTHIAS NEUWIRTH](https://appshunter.io/developer/1819953456) |

## What reviewers say

### GRIDD PRO

[App page](https://appshunter.io/ios/app/gridd-pro/id6504397339)

**In-app purchases:** none


### StayGray

[App page](https://appshunter.io/ios/app/staygray/id6757358852)

This app helps reduce screen time by automatically switching your device to grayscale. You can customize when color is allowed, set schedules, and track your progress in reducing usage.

**Highlights:** Automatic grayscale switching, Customizable color exceptions, Scheduled monochrome periods, Location-based color activation, Progress tracking for screen time, Color breaks for temporary color access

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $1.99 | per month |
| StayGray Plus | $8.99 | per year |
| StayGray Plus: Lifetime | $24.99 | one-time |


## Frequently asked questions

### Is GRIDD PRO free?

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

### Is StayGray free?

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

### Do GRIDD PRO or StayGray have ads?

Neither GRIDD PRO nor StayGray shows ads.

### Which is updated more often, GRIDD PRO or StayGray?

GRIDD PRO ships an update every 5 months, and StayGray fortnightly. Most recently, GRIDD PRO was updated on September 14, 2026 and StayGray on August 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.*