Comparison

Gem Weight Estimator vs NSDAPP

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Gem Weight Estimator

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
Read full description

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.

About

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.

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
Read full description

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

Gem Weight Estimator4 screens
NSDAPP4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard3 real differences · 6 level
Gem Weight Estimator versus NSDAPP: the parameters behind the verdict, then further details
ParameterGem Weight EstimatorNSDAPP
PriceFreeFree
Rating4.3 (3 ratings)5.0 (2 ratings) — better
Number of ratings3 — better2
Update frequencyEvery 11 monthsMonthly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS9.0 — better16.6
Further details — not scored
Size17 MB36 MB
Age rating4+4+
DeveloperKennedy HoNatural Stone Design Corp

Customer experience

Gem Weight Estimator

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

NSDAPP

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Gem Weight Estimator

No in-app purchases

None

NSDAPP

No in-app purchases

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 3, 2026 and NSDAPP on October 4, 2026.

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