# Gem Weight Estimator vs NSDAPP

The clearest difference is rating: NSDAPP at 5.0 against Gem Weight Estimator's 4.3. NSDAPP also leads on update cadence (monthly vs every 11 months). Gem Weight Estimator's advantage is iOS requirement (9.0 vs 16.6). On price, ratings volume, ads and in-app purchases there is nothing between them.

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

NSDAPP holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 3 and 2 respectively.

Gem Weight Estimator ships an update every 11 months, NSDAPP monthly. The most recent releases landed on October 20, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Gem Weight Estimator | NSDAPP |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (3 ratings)](https://appshunter.io/ios/app/gem-weight-estimator/id941035288/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/nsdapp/id1618136382/reviews)** |
| Number of ratings | **3** | 2 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Monthly** |
| Monetization | Free | Free |
| Size | 17 MB | 36 MB |
| Requires iOS | **9.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Kennedy Ho](https://appshunter.io/developer/927311625) | [Natural Stone Design Corp](https://appshunter.io/developer/1617672009) |

## What reviewers say

### Gem Weight Estimator

[App page](https://appshunter.io/ios/app/gem-weight-estimator/id941035288)

Quickly estimate the weight of faceted gemstones using their cutting style and dimensions. Archive this information with photos for future reference.

**Highlights:** Estimate gem weight, Input cutting style and dimensions, Archive weight data, Include stone photographs, Supports various gem materials

**In-app purchases:** none


### NSDAPP

[App page](https://appshunter.io/ios/app/nsdapp/id1618136382)

This app streamlines countertop fabrication and installation operations. It allows teams to manage daily appointments, access project details, upload progress photos, and track material inventory in real-time. The tool aims to improve communication, reduce waste, and boost efficiency for fabrication companies.

**Highlights:** Manage daily appointments, Access project details, Upload progress photos, Track material and slab inventory, View jobs ready for cutting, Record remnant measurements, Scan slabs to update inventory

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

**In-app purchases:** none


## Frequently asked questions

### Is Gem Weight Estimator free?

Gem Weight Estimator is free to download, with no in-app purchases.

### Is NSDAPP free?

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

### Which has better reviews, Gem Weight Estimator or NSDAPP?

NSDAPP is rated higher. Gem Weight Estimator averages 4.3 out of 5 from 3 ratings, while NSDAPP averages 5.0 from 2 ratings.

### Do Gem Weight Estimator or NSDAPP have ads?

Neither Gem Weight Estimator nor NSDAPP shows ads.

### Which is updated more often, Gem Weight Estimator or NSDAPP?

Gem Weight Estimator ships an update every 11 months, and NSDAPP monthly. Most recently, Gem Weight Estimator was updated on October 20, 2026 and NSDAPP 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.*