# LDM STUDIO_EN vs CPI pro

The clearest difference is rating: LDM STUDIO_EN at 5.0 against CPI pro's 1.0. CPI pro's advantage is iOS requirement (8.0 vs 12.0). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

LDM STUDIO_EN holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

LDM STUDIO_EN ships an update every 5 weeks, CPI pro every 3 weeks. The most recent releases landed on October 21, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | LDM STUDIO_EN | CPI pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/ldm-studio-en/id1187812038/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/cpi-pro/id1214833658/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 25 MB | 135 MB |
| Requires iOS | 12.0 | **8.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [刚 何](https://appshunter.io/developer/1146786543) | [SHENZHEN MILESEEY TECHNOLOGY CO.LTD](https://appshunter.io/developer/1563678294) |

## What reviewers say

### LDM STUDIO_EN

[App page](https://appshunter.io/ios/app/ldm-studio-en/id1187812038)

This utility app provides tools for measuring distances on sites and highways. It offers a straightforward way to get accurate measurements for various applications.

**Highlights:** Site measurement, Highway measurement, Distance calculation, Utility tool

**Features:** macOS Compatibility

**In-app purchases:** none


### CPI pro

[App page](https://appshunter.io/ios/app/cpi-pro/id1214833658)

This utility app allows users to measure distances and sketch floor plans. It can mark dimensions on photos, record data in spreadsheets, and export drawings as photos or PDFs for easy sharing.

**Highlights:** Distance measurement, Floor plan sketching, Marking distances on photos, Data recording in Excel, Export as photo and PDF, Sharing functionality

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is LDM STUDIO_EN free?

LDM STUDIO_EN is free to download, with no in-app purchases.

### Is CPI pro free?

CPI pro is free to download, with no in-app purchases.

### Which has better reviews, LDM STUDIO_EN or CPI pro?

LDM STUDIO_EN is rated higher. LDM STUDIO_EN averages 5.0 out of 5 from 1 ratings, while CPI pro averages 1.0 from 1 ratings.

### Do LDM STUDIO_EN or CPI pro have ads?

Neither LDM STUDIO_EN nor CPI pro shows ads.

### Which is updated more often, LDM STUDIO_EN or CPI pro?

LDM STUDIO_EN ships an update every 5 weeks, and CPI pro every 3 weeks. Most recently, LDM STUDIO_EN was updated on October 21, 2026 and CPI pro on October 23, 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.*