Diamond Tester Downloads & RevenueDiamond Tester · App Store & Google Play
Diamond Tester by Nicolas Gustavo Melian is on App Store and Google Play. Active Users (MAU & DAU), Downloads, rankings, keywords, revenue, and rating totals.
🆕AndroidFirst spotted by AppInsider🆕iOSFirst spotted by AppInsider🆕AndroidIts developer released another app: Lovely: Couple Games & Widgets📦iOSVersion 1.1.0📦AndroidVersion 1.0.3🆕iOSReleased on the App Store
Full timeline · 8 events
- 🆕Diamond Tester first spotted by AppInsiderAndroidUnited States (found via developer)
- 🆕Diamond Tester first spotted by AppInsideriOSUnited States (found via developer)
- 🆕Diamond Tester: its developer released another app: Lovely: Couple Games & WidgetsAndroid
- 📦Diamond Tester version 1.1.0iOS- Updated app information and educational content
- Improved visual reference guide
- Performance improvements and bug fixes - 🆕Diamond Tester: its developer released another app: Sports Card Value ScannerAndroid
- 📦Diamond Tester version 1.0.3Androidbug fixes.
- 🆕Diamond Tester released on Google PlayAndroid
- 🆕Diamond Tester released on the App StoreiOS
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Rating
3.8 ★
126 ratings, both stores
Measured
App Store
App details
App ID
6754944343
Publisher
Nicolas Gustavo Melian
Publisher country
Argentina
On the store since
Nov 2025
Under a year
Minimum OS
iOS 17.6+
iPhone XS and later
Devices
iPhone · iPad
Universal purchase
Content rating
4+
Languages
25
AR CS NL EN FR DE EL HE HI ID IT JA …
Size
12 MB
Google Play
App details
App ID
com.nicomelian.diamondtester
Publisher
Nicolas Gustavo Melian
Publisher country
Argentina
Content rating
Everyone
Diamond Tester downloads & installs
Both stores, worldwide. Bands are open; exact numbers are free with an account.
| Store | Downloads / day | Lifetime installs |
|---|---|---|
| App Store | – | 5k+ |
| Google Play | – | 10k+ Measured |
| Total | – | 10k+ Confidence |
How this is calculated
App Store: chart positions and rating growth per country, anchored on its own Android downloads; lifetime from ratings worldwide × installs per rating. Google Play: the daily change in its exact install count. The total adds every store.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
In-app revenue
Worldwide, what users spend before Apple and Google take their fee.
| Store | Per day | Per month | Share |
|---|---|---|---|
| App Store | |||
| Google Play | |||
| Total | Confidence | 100% |
Business model: In-app purchase-led
How Diamond Tester makes money: subscriptions, one-off purchases and ads.
In-app purchases
One-off purchases
/mo
of revenue
Where it ranks now
Both stores, across every country we track.
| Store | Best rank | Charting in | US Top Free | US Top Grossing |
|---|---|---|---|---|
| App Store | – | 0 of 30 countries | – | – |
| Google Play | – | 0 of 23 countries | – | – |
Full chart lists: App Store · Google Play.
Review momentum
ⓘ How we measure thisNew ratings a week
under 1
4-week average
Lifetime rating
4.5★
recent stars not readable yet: new ratings are a tiny share of the total
Review momentum
49/100
faster than 48% of Utilities apps
Review momentum (0-100) blends how fast the app collects ratings compared with other apps in its category (60%), whether that pace is speeding up (25%) and what recent raters give it (15%; recent stars well below lifetime pull it down). Ratings counts are read daily. A jump usually means a launch, a feature, ads or a new review prompt.
Ratings
Both stores. Store data, measured.
| Store | Rating | Ratings |
|---|---|---|
| App Store | 4.5 ★ | 65 |
| Google Play | 3.0 ★ | 61 3 written reviews |
| Both stores | 3.8 ★ weighted by ratings | 126 |
About Diamond Tester
Diamond Tester helps you explore and learn about diamonds, gems, and crystals through visual reference. Take a photo of any stone in your collection to receive educational information about its visual characteristics and properties.
KEY FEATURES
- Visual identification reference for gemstones and crystals
- Educational information about the 4 C's (Cut, Clarity, Color, Carat)
- Value range estimates based on visible characteristics
- Personal collection management to organize your scans
- Learn section with gemology basics and stone properties
HOW TO USE
For best results, place your stone in a clean, well-lit area and take a clear photo. The app will provide visual reference information and educational content related to the characteristics it identifies.
PERFECT FOR
- Jewelry enthusiasts learning about gemstones
- Collectors organizing their stone collections
- Students studying gemology basics
- Anyone curious about the gems they own
- Quick reference for visual stone characteristics
YOUR COLLECTION
Build and organize your personal gemstone library. Save scans, add notes, and track your collection over time. All data stays on your device.
IMPORTANT INFORMATION
This app is an educational reference tool. The information provided is for general learning purposes and visual identification reference only. It is NOT a substitute for professional gemological testing or appraisal.
For authentication, valuation, or any decisions involving significant financial value, always consult a certified gemologist (GIA, AGS, or equivalent) who can perform proper testing with calibrated equipment.
The app cannot definitively verify the authenticity, grade, or precise value of diamonds, gemstones, or crystals. Visual identification has inherent limitations and should be used as a starting point for learning, not as final verification.
____________
Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://meliann.notion.site/Privacy-Policy-For-Diamond-Tester-2a3476f8f041805cb09cea52c0f092d1?pvs=73
KEY FEATURES
- Visual identification reference for gemstones and crystals
- Educational information about the 4 C's (Cut, Clarity, Color, Carat)
- Value range estimates based on visible characteristics
- Personal collection management to organize your scans
- Learn section with gemology basics and stone properties
HOW TO USE
For best results, place your stone in a clean, well-lit area and take a clear photo. The app will provide visual reference information and educational content related to the characteristics it identifies.
PERFECT FOR
- Jewelry enthusiasts learning about gemstones
- Collectors organizing their stone collections
- Students studying gemology basics
- Anyone curious about the gems they own
- Quick reference for visual stone characteristics
YOUR COLLECTION
Build and organize your personal gemstone library. Save scans, add notes, and track your collection over time. All data stays on your device.
IMPORTANT INFORMATION
This app is an educational reference tool. The information provided is for general learning purposes and visual identification reference only. It is NOT a substitute for professional gemological testing or appraisal.
For authentication, valuation, or any decisions involving significant financial value, always consult a certified gemologist (GIA, AGS, or equivalent) who can perform proper testing with calibrated equipment.
The app cannot definitively verify the authenticity, grade, or precise value of diamonds, gemstones, or crystals. Visual identification has inherent limitations and should be used as a starting point for learning, not as final verification.
____________
Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://meliann.notion.site/Privacy-Policy-For-Diamond-Tester-2a3476f8f041805cb09cea52c0f092d1?pvs=73
Diamond Tester App Store
Not in any tracked top chart right now.
Updated 5 Nov 2026 · rankings refresh through the day
DeveloperNicolas Gustavo Melian
CategoryUtilities
PriceFree
Released
Rating★ 4.5 (65)
Version1.1.0
Age rating4+
First seen by us
12 Oct 2026
12 Oct 2026Installs (est.)5k+ worldwide
Rating
4.5 ★
65 ratings
Measured
Diamond Tester on the App Store
App details
App ID
6754944343
Publisher
Nicolas Gustavo Melian
Publisher country
Argentina
On the store since
Nov 2025
Under a year
Minimum OS
iOS 17.6+
iPhone XS and later
Devices
iPhone · iPad
Universal purchase
Content rating
4+
Languages
25
AR CS NL EN FR DE EL HE HI ID IT JA …
Size
12 MB
Diamond Tester downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Apple publishes no download counts. App Store downloads come from chart positions and daily rating growth per country, calibrated on Google Play install counts; lifetime installs from ratings worldwide × installs per rating. Confidence is the chance the real number is within half to double ours.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
In-app revenue
Worldwide, what users spend in Diamond Tester before Apple and Google take their fee.
How this is calculated
Not on any Top Grossing chart: monthly active users × spend per user for its category, measured on the charted apps nearest the bottom of the charts.
Business model: In-app purchase-led
How Diamond Tester makes money: subscriptions, one-off purchases and ads.
In-app purchases
One-off purchases
/mo
of revenue
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| Not charting right now. | ||
Ratings
App Store, worldwide.
Rating
4.5 ★
65 ratings
Measured
Ratings
65
Measured
Review momentum
ⓘ How we measure thisNew ratings a week
under 1
4-week average
Lifetime rating
4.5★
recent stars not readable yet: new ratings are a tiny share of the total
Review momentum
49/100
faster than 48% of Utilities apps
Review momentum (0-100) blends how fast the app collects ratings compared with other apps in its category (60%), whether that pace is speeding up (25%) and what recent raters give it (15%; recent stars well below lifetime pull it down). Ratings counts are read daily. A jump usually means a launch, a feature, ads or a new review prompt.
About Diamond Tester
Diamond Tester helps you explore and learn about diamonds, gems, and crystals through visual reference. Take a photo of any stone in your collection to receive educational information about its visual characteristics and properties.
KEY FEATURES
- Visual identification reference for gemstones and crystals
- Educational information about the 4 C's (Cut, Clarity, Color, Carat)
- Value range estimates based on visible characteristics
- Personal collection management to organize your scans
- Learn section with gemology basics and stone properties
HOW TO USE
For best results, place your stone in a clean, well-lit area and take a clear photo. The app will provide visual reference information and educational content related to the characteristics it identifies.
PERFECT FOR
- Jewelry enthusiasts learning about gemstones
- Collectors organizing their stone collections
- Students studying gemology basics
- Anyone curious about the gems they own
- Quick reference for visual stone characteristics
YOUR COLLECTION
Build and organize your personal gemstone library. Save scans, add notes, and track your collection over time. All data stays on your device.
IMPORTANT INFORMATION
This app is an educational reference tool. The information provided is for general learning purposes and visual identification reference only. It is NOT a substitute for professional gemological testing or appraisal.
For authentication, valuation, or any decisions involving significant financial value, always consult a certified gemologist (GIA, AGS, or equivalent) who can perform proper testing with calibrated equipment.
The app cannot definitively verify the authenticity, grade, or precise value of diamonds, gemstones, or crystals. Visual identification has inherent limitations and should be used as a starting point for learning, not as final verification.
____________
Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://meliann.notion.site/Privacy-Policy-For-Diamond-Tester-2a3476f8f041805cb09cea52c0f092d1?pvs=73
KEY FEATURES
- Visual identification reference for gemstones and crystals
- Educational information about the 4 C's (Cut, Clarity, Color, Carat)
- Value range estimates based on visible characteristics
- Personal collection management to organize your scans
- Learn section with gemology basics and stone properties
HOW TO USE
For best results, place your stone in a clean, well-lit area and take a clear photo. The app will provide visual reference information and educational content related to the characteristics it identifies.
PERFECT FOR
- Jewelry enthusiasts learning about gemstones
- Collectors organizing their stone collections
- Students studying gemology basics
- Anyone curious about the gems they own
- Quick reference for visual stone characteristics
YOUR COLLECTION
Build and organize your personal gemstone library. Save scans, add notes, and track your collection over time. All data stays on your device.
IMPORTANT INFORMATION
This app is an educational reference tool. The information provided is for general learning purposes and visual identification reference only. It is NOT a substitute for professional gemological testing or appraisal.
For authentication, valuation, or any decisions involving significant financial value, always consult a certified gemologist (GIA, AGS, or equivalent) who can perform proper testing with calibrated equipment.
The app cannot definitively verify the authenticity, grade, or precise value of diamonds, gemstones, or crystals. Visual identification has inherent limitations and should be used as a starting point for learning, not as final verification.
____________
Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://meliann.notion.site/Privacy-Policy-For-Diamond-Tester-2a3476f8f041805cb09cea52c0f092d1?pvs=73
Latest updates
1.1.0
- Updated app information and educational content
- Improved visual reference guide
- Performance improvements and bug fixes
More from Nicolas Gustavo Melian
Diamond Tester Android
Not in a tracked Google Play top chart right now.
Updated 5 Nov 2026 · rankings refresh through the day
DeveloperNico Melian
CategoryTools
PriceFree
Released
Installs10k+
Rating★ 3.0 (61)
Updated
Content ratingEveryone
Rating
3.0 ★
61 ratings
Measured
Diamond Tester on Google Play
App details
App ID
com.nicomelian.diamondtester
Publisher
Nicolas Gustavo Melian
Publisher country
Argentina
Content rating
Everyone
Diamond Tester downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Google Play shows an exact lifetime install count; downloads per day are its daily change (measured). When Play hasn't refreshed the count, they come from new ratings and Top Free chart positions. Confidence is the chance the real number is within half to double ours.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
In-app revenue
Worldwide, what users spend in Diamond Tester before Apple and Google take their fee.
How this is calculated
Not on any Top Grossing chart: monthly active users × spend per user for its category, measured on the charted apps nearest the bottom of the charts.
Business model: In-app purchase-led
How Diamond Tester makes money: subscriptions, one-off purchases and ads.
In-app purchases
One-off purchases
/mo
of revenue
Where it ranks on Google Play
Every top 200 chart it appears in across 23 countries.
| Country | Charts | Rank |
|---|---|---|
| Not in a Google Play top chart right now. | ||
Ratings
Google Play, worldwide.
Rating
3.0 ★
61 ratings
Measured
Ratings
61
Measured
Written reviews
3
Measured
About Diamond Tester
With Diamond Tester App, you can take a photo of a diamond, gem, or crystal and receive information about it, including whether it’s real or fake. In addition, Diamond Tester provides an estimated value for your diamond.
For best results, we recommend placing your diamond, gem, or crystal in a clean, well-lit area.
The app also includes a “Collection” section, where you can view all your previous scans and keep your diamond collection organized in one place.
Install and try Diamond Tester today!
For best results, we recommend placing your diamond, gem, or crystal in a clean, well-lit area.
The app also includes a “Collection” section, where you can view all your previous scans and keep your diamond collection organized in one place.
Install and try Diamond Tester today!
What's new in 1.0.3
bug fixes.