# GrindLock Screen Time Control vs DoomShield

The clearest difference is update cadence: GrindLock Screen Time Control at every 2 days against DoomShield's every 4 days. DoomShield's advantage is iOS requirement (16.4 vs 18.6). On price and in-app purchases there is nothing between them.

Both are free to download. GrindLock Screen Time Control sells 4 in-app purchases, starting at $14.99 per month and DoomShield sells 3 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

GrindLock Screen Time Control ships an update every 2 days, DoomShield every 4 days. The most recent releases landed on September 30, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | GrindLock Screen Time Control | DoomShield |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | — | Yes |
| Update frequency | **Every 2 days** | Every 4 days |
| Size | 190 MB | 143 MB |
| Requires iOS | 18.6 | **16.4** |
| Devices | — | **iPhone** |
| Age rating | 4+ | 4+ |
| Developer | [Slice of Life Ltd](https://appshunter.io/developer/896829956) | [Michael Aubry](https://appshunter.io/developer/1783840404) |

## What reviewers say

### GrindLock Screen Time Control

[App page](https://appshunter.io/ios/app/grindlock-screen-time-control/id6761210069)

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited (1 month) | $14.99 | per month |
| Unlimited (1 Year) | $19.99 | per year |
| Unlimited (1 year) | $29.99 | per year |
| Unlimited (1 year) | $49.99 | per year |


### DoomShield

[App page](https://appshunter.io/ios/app/doomshield-stop-doomscrolling/id6780715962)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DoomShield Pro Weekly | $6.99 | per 7 days |
| DoomShield Pro Monthly | $9.99 | per month |
| DoomShield Pro Annual | $99.99 | per year |


## Frequently asked questions

### Is GrindLock Screen Time Control free?

GrindLock Screen Time Control is free to download, with in-app purchases available.

### Is DoomShield free?

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

### Which is updated more often, GrindLock Screen Time Control or DoomShield?

GrindLock Screen Time Control ships an update every 2 days, and DoomShield every 4 days. Most recently, GrindLock Screen Time Control was updated on September 30, 2026 and DoomShield on October 2, 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.*