GemGuide Pricing vs Rap Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
GemGuide Pricing
This app provides an independent, market-driven benchmark for wholesale pricing of gems and jewelry. Users can view individual stone prices in wholesale or retail and adjust markups. A subscription is required for full functionality.
- Wholesale gem pricing
- Retail gem pricing
- Individual stone price view
- Markup control
- Market-driven benchmark
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A reliable benchmark standard for independent, market-driven, accurate wholesale pricing for the gem and jewelry industry. View pricing on individual stones in wholesale or retail, and even control the markups. Note: A Subscription to the GemGuide pricing is required to use this app.
Rap Calculator
Calculate the value of diamonds using live global pricing and customizable parameters like shape, color, clarity, and carat. Easily update the Rap price list with a single touch to determine diamond prices and broker discounts.
- Live global diamond pricing
- Calculate value by shape, color, clarity, carat
- One-touch Rap price list updates
- Calculate broker discounts
- Easy to use for buyers, manufacturers, sellers, brokers
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Rap Calc fetch the live Global price (from Global site) so you can calculate the value of the diamond with your discount or back %. It is very easy to use for Diamond Buyers, Manufacturers, Sellers and Brokers to calculate the price of the diamond. With Rap Calc you can calculate the price of the diamond with different parameters like Shape, Color, Clarity and Carat. Features -------------------------------------- > Updates the Rap price list with one touch no need any details > Calculates the value of the Diamond based on provided parameters > Update the latest Global price every Friday by touching the update > Calculates the Less amount for broker based on the percentage given. How to Use : -------------------------------------- > When you open Rap Calc first time on your mobile, you need to first update the global price of the diamonds. Please follow the below process. > Click on "UPDATE RAP" button at the top right corner of the application. > On Update Global Price page you need to click on "YES, UPDATE PRICE" button. > That's it. Now you can see the latest global price of the diamonds.
Screenshots
Verdict
The clearest difference is monetization model: Rap Calculator at free against GemGuide Pricing's subscription. Rap Calculator also leads on update cadence (every 3 months vs every 69 months) and iOS requirement (10.0 vs 13.0). On price, rating, review sentiment and ratings volume 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.
On the App Store both sit at effectively the same score — 3.3 for GemGuide Pricing against 3.3 for Rap Calculator. Both are backed by a comparable volume of ratings — 6 and 4 respectively. Written reviews split almost evenly too, at 40% and 40% positive.
GemGuide Pricing ships an update every 69 months, Rap Calculator every 3 months. Both last shipped on October 24, 2026.
| Parameter | GemGuide Pricing | Rap Calculator |
|---|---|---|
| Price | Free | Free |
| Rating | 3.3 (6 ratings) — better | 3.3 (4 ratings) |
| Positive reviews | 40.0% of reviews | 40.0% of reviews |
| Number of ratings | 6 — better | 4 |
| Update frequency | Every 69 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Subscription | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 10.0 — better |
| Further details — not scored | ||
| Size | 9 MB | 32 MB |
| Age rating | 4+ | 4+ |
| Developer | Gemworld International, Inc. | OOZEE TECHNOLOGIES |
Customer experience
GemGuide Pricing
Rap Calculator
In-app purchases
GemGuide Pricing
No in-app purchases
Rap Calculator
No in-app purchases
Questions
Is GemGuide Pricing free?
Is Rap Calculator free?
Which has better reviews, GemGuide Pricing or Rap Calculator?
Do GemGuide Pricing or Rap Calculator have ads?
Which is updated more often, GemGuide Pricing or Rap Calculator?
Other comparisons
