# GridFix vs 建筑摄影

The clearest difference is in-app purchases: 建筑摄影 at none against GridFix's 3. 建筑摄影 also leads on iOS requirement (16.0 vs 18.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. GridFix sells 3 in-app purchases, starting at $2.99 per month. 建筑摄影 asks for nothing beyond the download.

GridFix ships an update every 4 days, 建筑摄影 every 5 days. The most recent releases landed on September 24, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | GridFix | 建筑摄影 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 5 days |
| Size | 5 MB | 4 MB |
| Requires iOS | 18.0 | **16.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [PEI-CHUN CHAO](https://appshunter.io/developer/6792030550) | [liu xiaoyong](https://appshunter.io/developer/6802644081) |

## 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 |


### 建筑摄影

[App page](https://appshunter.io/ios/app/id6802644079)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is GridFix free?

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

### Is 建筑摄影 free?

建筑摄影 is free to download, with no in-app purchases.

### Do GridFix or 建筑摄影 have ads?

Neither GridFix nor 建筑摄影 shows ads.

### Which is updated more often, GridFix or 建筑摄影?

GridFix ships an update every 4 days, and 建筑摄影 every 5 days. Most recently, GridFix was updated on September 24, 2026 and 建筑摄影 on October 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.*