# Sader Method vs 3D Object & Room Scanner

The clearest difference is review sentiment: Sader Method at 100% against 3D Object & Room Scanner's 36%. Sader Method also leads on rating (5.0 vs 4.3) and in-app purchases (none vs 3). 3D Object & Room Scanner's advantage is update cadence (every 6 weeks vs every 57 months) and ratings volume (27 vs 1). On price and device support there is nothing between them.

Both are free to download. 3D Object & Room Scanner sells 3 in-app purchases, starting at $0.99 per month. Sader Method asks for nothing beyond the download.

Sader Method holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: 3D Object & Room Scanner has 27 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 100% of Sader Method's written reviews are positive against 36% of 3D Object & Room Scanner's.

Sader Method ships an update every 57 months, 3D Object & Room Scanner every 6 weeks. The most recent releases landed on September 17, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Sader Method | 3D Object & Room Scanner |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sader-method/id402544930/reviews)** | [4.3 (27 ratings)](https://appshunter.io/ios/app/3d-object-and-room-scanner/id6480382590/reviews) |
| Number of ratings | 1 | **27** |
| Positive reviews | **100.0% of reviews** | 36.4% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 57 months | **Every 6 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 2 MB | 40 MB |
| Requires iOS | **15.4** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [John Sader](https://appshunter.io/developer/402544933) | [Nicolo Stanciu](https://appshunter.io/developer/930855677) |

## What reviewers say

### Sader Method

[App page](https://appshunter.io/ios/app/sader-method/id402544930)

This utility app helps calibrate Atomic Force Microscope cantilevers. It provides a user interface to determine the spring constant of a cantilever using its resonant frequency and quality factor.

**Highlights:** Atomic Force Microscope cantilever calibration, Determine spring constant, Resonant frequency measurement, Quality factor measurement, User interface for calibration

**Features:** macOS Compatibility

**In-app purchases:** none


### 3D Object & Room Scanner

[App page](https://appshunter.io/ios/app/3d-object-and-room-scanner/id6480382590)

Capture real-world objects and spaces in 3D using your device's LiDAR sensor. View scans in AR, export them in various formats, and sync them across devices. Ideal for hobbyists, designers, and anyone interested in 3D modeling and augmented reality.

**Highlights:** 3D scanning of objects and spaces, AR viewing of scans, Export in USDZ, STL, PLY, ABC, OBJ, Video capture of 3D models, iCloud Sync for models, Requires LiDAR-enabled iPhone/iPad

**Features:** Family Sharing, Apple Wallet

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Monthly | $0.99 | per month |
| Unlimited Yearly | $9.99 | per year |
| Unlimited Lifetime | $19.99 | one-time |


## Frequently asked questions

### Is Sader Method free?

Sader Method is free to download, with no in-app purchases.

### Is 3D Object & Room Scanner free?

3D Object & Room Scanner is free to download, with in-app purchases available.

### Which has better reviews, Sader Method or 3D Object & Room Scanner?

Sader Method is rated higher. Sader Method averages 5.0 out of 5 from 1 ratings, while 3D Object & Room Scanner averages 4.3 from 27 ratings.

### Do Sader Method or 3D Object & Room Scanner have ads?

3D Object & Room Scanner shows ads; Sader Method does not.

### Which is updated more often, Sader Method or 3D Object & Room Scanner?

Sader Method ships an update every 57 months, and 3D Object & Room Scanner every 6 weeks. Most recently, Sader Method was updated on September 17, 2026 and 3D Object & Room Scanner on October 13, 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.*