Gem Weight Estimator vs NSDAPP
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Gem Weight Estimator
Quickly estimate the weight of faceted gemstones using their cutting style and dimensions. Archive this information with photos for future reference.
- Estimate gem weight
- Input cutting style and dimensions
- Archive weight data
- Include stone photographs
- Supports various gem materials
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AIGS’s Gem Weight Estimator (GWE) - which is calibrated for use with a wide variety of gem materials - allows users to quickly estimate the weight of a faceted gemstone, based on its cutting style and dimensions. This information can then be archived - along with a photograph of the stone in question - for future reference.
NSDAPP
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.
- 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
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OnlyOneWare puts your entire stone and countertop shop in one app — from the yard to the job site. Built for fabricators, installers, and shop teams, OnlyOneWare replaces scattered paper tickets, texts, and spreadsheets with a single mobile workflow that keeps everyone on the same page, in real time. Fabrication & Production Track every fabrication process from start to finish, with subprocess-level status updates as work moves through the shop Scan slab and remnant barcodes to instantly pull up the right job — no more hunting through lists Log material inventory, remnants, and project areas as they're consumed or created Take precise on-slab measurements with a guided trace tool, including shape close-out and remnant creation Automatic safeguards prevent adding or scanning materials once a fabrication is complete, keeping your records accurate Installations & Appointments View and manage installation schedules and appointments on the go Keep project details, statuses, and history in sync between the shop and the field Photos & Documentation Attach pictures and videos directly to projects, templates, and fabrication records Organized galleries for every project keep visual documentation exactly where you need it Inventory & Materials Scan and manage slab and remnant inventory by barcode Track material usage against project areas to cut down on waste and miscommunication Built for the Shop Floor Fast barcode and label scanning powered by your device's camera Works the way your team already moves — quick actions, minimal taps, clear confirmations before anything important happens Role-based permissions mean each team member sees exactly what they need, nothing more Stay in Sync Changes made in the field or on the shop floor update in real time, so office staff, shop management, and the TV displays on the production floor always reflect the latest status — no refreshing, no guessing. Whether you're cutting slabs in the shop, scanning remnants into inventory, or checking on an install from the field, OnlyOneWare is everything your shop runs on, in one place.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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 3, 2026 and October 4, 2026 respectively.
| Parameter | Gem Weight Estimator | NSDAPP |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (3 ratings) | 5.0 (2 ratings) — better |
| Number of ratings | 3 — better | 2 |
| Update frequency | Every 11 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 9.0 — better | 16.6 |
| Further details — not scored | ||
| Size | 17 MB | 36 MB |
| Age rating | 4+ | 4+ |
| Developer | Kennedy Ho | Natural Stone Design Corp |
Customer experience
Gem Weight Estimator
NSDAPP
In-app purchases
Gem Weight Estimator
No in-app purchases
NSDAPP
No in-app purchases
Questions
Is Gem Weight Estimator free?
Is NSDAPP free?
Which has better reviews, Gem Weight Estimator or NSDAPP?
Do Gem Weight Estimator or NSDAPP have ads?
Which is updated more often, Gem Weight Estimator or NSDAPP?
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