# GridFix vs Plumb.cam

GridFix and Plumb.cam are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. GridFix sells 3 in-app purchases, starting at $2.99 per month and Plumb.cam sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly every 4 days. The most recent releases landed on October 10, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | GridFix | Plumb.cam |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 days | Every 4 days |
| Size | 5 MB | 13 MB |
| Requires iOS | 18.0 | 18.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [PEI-CHUN CHAO](https://appshunter.io/developer/6792030550) | [Wuhan QShot Technology Co., Ltd.](https://appshunter.io/developer/6793342488) |

## What reviewers say

### GridFix

[App page](https://appshunter.io/ios/app/gridfix-perspective-fix/id6792030548)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| GridFix 訂閱（月繳） | $2.99 | per month |
| GridFix 訂閱（年繳） | $14.99 | per year |
| GridFix 終身買斷 | $39.99 | one-time |


### Plumb.cam

[App page](https://appshunter.io/ios/app/plumbcam/id6811723440)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plumb Pro Monthly | $1.99 | per month |
| Plumb Pro Annual | $16.99 | per year |
| Plumb Pro Lifetime | $36.99 | one-time |


## Frequently asked questions

### Is GridFix free?

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

### Is Plumb.cam free?

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

### Do GridFix or Plumb.cam have ads?

Neither GridFix nor Plumb.cam shows ads.

### Which is updated more often, GridFix or Plumb.cam?

GridFix ships an update every 4 days, and Plumb.cam every 4 days. Most recently, GridFix was updated on October 10, 2026 and Plumb.cam on October 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.*