Karat Kalculator vs STS Refiners Inc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Karat Kalculator
Estimate the value of your gold scrap by entering weights for different karats. It fetches current gold prices and adjusts for historical recovery data. View total estimated net value, charges, and other useful information.
- Estimate gold scrap value
- Enter weights by karat
- Fetch current gold prices
- Adjust for future gold prices
- View estimated net value
- Includes associated charges
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*Price updates have been fixed. Thank you for your patience.** Mid-States Recycling & Refining’s famous Karat Kalculator is now available on your iPhone! Try our web version at www.karatkalculator.com. The Karat Kalculator is a tool to estimate the practical value of your Karat Gold Scrap. Simply select your measurement unit on the main Kalculator page and enter your weights under each specific karat field. To calculate the total value of your scrap gold, you can tap calculate or the results tab on the bottom of the screen. The results screen will show you the total estimated net value of your refining lot minus any associated charges, plus much more useful information. When you first open the Karat Kalculator app it will obtain the most current gold price from www.midstatesrecycling.com. This price will be displayed on the Kalculator page and the Gold Price page. The gold price can be adjusted to any future price of your choice by either tapping the gold price on the Kalculator page or changing it on the Gold Price page. In our 40 years of experience we have found most karat gold jewelry scrap to average approximately a ½ karat under its plumb stamp. Because of this we have built the Karat Kalculator to mimic the recoveries for each grade of Karat Gold that our historical data indicates. Final settlements will be based on the actual melt & assay results at appropriate current gold market, less applicable treatment and refining charges. Mid-States Recycling works with trade only. A valid business license in the Jewelry, Pawn, 2nd Hand Buy/Sell, or Scrap Metal Dealer is required.
STS Refiners Inc
This B2B platform provides businesses with tools for precious metal refining. Calculate scrap prices for gold, silver, and platinum, view live market data, and receive custom payout rates. Set price alerts and use unit conversions with sharing and push notification options.
- Scrap price calculation for gold, silver, platinum
- Live market prices and London Fix
- Price alerts and notifications
- Unit conversions
- Custom payout rates for registered users
- Shareable data
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STS Gold Refiners Inc. is a full-service precious metal refinery based in New York. STS has created this B2B platform to give businesses all the refining tools on their figure tips. This application allows you to Calculate Scrap Prices for Gold, Silver & Platinum. It displays Live Prices, London Fix, lets you set price alerts & Unit Conversions with the option to Share and push notifications. Registered users also get all the custom payout rates from STS. STS Refiners developed by STS Gold Refiners Inc. www.stsrefiners.com
Screenshots
Verdict
The clearest difference is rating: STS Refiners Inc at 5.0 against Karat Kalculator's 3.0. STS Refiners Inc also leads on monetization model (free vs paid) and review sentiment (100% vs 73%). Karat Kalculator's advantage is update cadence (every 2 weeks vs monthly). 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.
STS Refiners Inc holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 4 and 5 respectively. Written reviews point the same way: 73% of Karat Kalculator's written reviews are positive against 100% of STS Refiners Inc's.
Karat Kalculator ships an update every 2 weeks, STS Refiners Inc monthly. The most recent releases landed on October 6, 2026 and September 21, 2026 respectively.
| Parameter | Karat Kalculator | STS Refiners Inc |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (4 ratings) | 5.0 (5 ratings) — better |
| Positive reviews | 72.7% of reviews | 100.0% of reviews — better |
| Number of ratings | 4 | 5 — better |
| Update frequency | Every 2 weeks — better | Monthly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 12.0 | 12.0 |
| Further details — not scored | ||
| Size | 64 MB | 140 MB |
| Age rating | 4+ | 4+ |
| Developer | Mid-States Recycling Inc | STS GOLD REFINERS INC. |
Customer experience
Karat Kalculator
STS Refiners Inc
In-app purchases
Karat Kalculator
No in-app purchases
STS Refiners Inc
No in-app purchases
Questions
Is Karat Kalculator free?
Is STS Refiners Inc free?
Which has better reviews, Karat Kalculator or STS Refiners Inc?
Do Karat Kalculator or STS Refiners Inc have ads?
Which is updated more often, Karat Kalculator or STS Refiners Inc?
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