Comparison

Carats vs Kode

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

Head to head
About

Carats

Easily calculate the carat weight of diamonds and gemstones by entering their dimensions. This tool is essential for jewelers, collectors, and anyone buying or selling precious stones, offering accurate and instant results.

Highlights
  • Carat weight calculation
  • Gemstone size determination
  • Gauge thickness converter
  • Area and distance conversion
  • Supports various facet styles
  • Extensive gemstone type database
  • Email calculation results
Features
Read full description

Your care and good judgment matter with every stone. Thank you for using Carats. Estimate gemstone weight, organize inventory and prepare clear quotes with tools for jewelers, gem dealers, collectors and lapidary artists. GEMSTONE WEIGHT ESTIMATES - Estimate carat weight from measurements in millimeters. - Find diamond, ruby, sapphire, emerald and other gemstone references. - Choose a cut factor and review specific gravity. - Account for girdle thickness, pavilion bulge and outline. - Explore brilliant, step, cushion and cabochon shapes. ADVANCED GEM AND CUSTOM CUTS - Measure above, through and below the girdle separately. - Set upper and lower profiles independently. - Enter table, culet and cushion corner measurements. - Add custom materials, species and density. - Use measured outline area, custom factors or measured volume. INVENTORY WITH CARATS PRO Give each stone a record you can return to between calculations. - Assign stock IDs and add actual photographs. - Attach gemstone certificates as images or PDFs. - Record suppliers, purchase costs and storage locations. - See available, reserved and sold stock. - Keep estimated and measured weights separate, with dates and methods. - Choose which saved weight a customer quote uses. - Manage parcels, matched pairs and individual stones. - Track partial sales, physical returns and remaining quantities. STONE COSTS AND PROFIT WITH PRO - Include purchase, cutting, setting and shipping costs. - Add selling fees and seller-paid commissions. - Compare profit, markup and margin before tax. - Keep commission income separate from selling expenses. - Record cost corrections while keeping original sale history. CUSTOMER QUOTES AND RECEIPTS WITH PRO - Select several stones for one quote. - Include photos, dimensions and the selected weight basis. - Price by stone, carat or the whole selection. - Add business details, a logo and quote acceptance deadlines. - Record deposits, payments, refunds and balances. - Share quote and receipt PDFs with internal costs kept private. - Keep issued documents when stock details change. CONVERSIONS AND REFERENCE - Convert carats, grams, points and milligrams. - Compare wire gauge sizes in inches and millimeters. - Convert distance, area and volume units. - Work with US gallons, Imperial gallons and liters. - Browse gemstone density and cut factor charts. SAVE AND REVIEW YOUR WORK - Save reusable density and profile presets. - Import CSV files with column mapping and a preview. - Review row errors and duplicate stock before importing. - Back up your workspace with photographs and saved PDFs. - Review saved gemstone and sales statistics. - Keep customer details and commission payment history together. - Link stock with saved calculations and sales. - Duplicate measurements without replacing the original record. - Keep receipt PDFs with customer payment history. APPLE WATCH TOOLS - Convert weight and gauge sizes at your wrist. - Browse guides, gemstone references and calculator graphs. - Share results from the separate Watch app. - Use Watch tools without a usage limit or subscription. On iPhone and iPad, try five free calculations per day for five consecutive calendar days, up to 25 total. Your first free Calculate request starts day one. Inactive days count; unused daily calculations do not roll over. Pro adds unlimited live calculations, interactive calculator graphs and the record, inventory, document and import tools described above. Choose monthly or lifetime access. Monthly renews automatically until canceled. Existing records remain viewable, shareable and exportable without Pro. For monthly subscriptions: Monthly Pro is a 1-month auto-renewable subscription. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Gemstone weights are estimates based on measurements, density and cut. Use a scale for actual weight.

About

Kode

Features
Read full description

Kode shows the 6-digit login codes for two-factor login on services that ask you to use an “authenticator app”. Pay once. No ads. No subscription and no account. SCAN AND YOU'RE SET • Scan the QR code the website shows – or pick a screenshot of it • Type in the key yourself if you can't scan • Tap a code to copy it – and paste it on your Mac with Universal Clipboard • The iPhone clipboard is cleared after 60 seconds CLEAR AND CALM • Big, clear digits and a countdown ring • Search, drag to reorder, and pin the ones you use most SECURE • Secret keys are stored only in the iPhone's Keychain – never in a database or on a server • Locked with Face ID, and codes are hidden in the app switcher • No network calls, no tracking, no account COMES WITH YOU • iCloud Keychain takes your codes to a new iPhone (you can turn it off) • Import all accounts at once from Google Authenticator, 2FAS, Aegis or 1Password • Encrypted, password-protected backup file in an open, documented format – so you're never locked in In English, Danish, Japanese, German, French, Spanish and Korean. PAY ONCE. THAT'S IT. Kode costs a small one-time price: every feature and every future update, with no ads and no subscription. The extra app icons and a silly little game are included for everyone.

Screenshots

Carats4 screens
Kode4 screens

Verdict

The call

The clearest difference is price: Carats at Free against Kode's $1.99. Kode's advantage is in-app purchases (none vs 2) and update cadence (every 3 days vs every 3 months). On ads, device support and iOS requirement 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

Carats is free to download; Kode costs $1.99 up front. Carats sells 2 in-app purchases, starting at $1.99 per month. Kode asks for nothing beyond the download.

UpkeepUpdate frequency

Carats ships an update every 3 months, Kode every 3 days. The most recent releases landed on October 29, 2026 and October 30, 2026 respectively.

Scorecard3 real differences · 7 level
Carats versus Kode: the parameters behind the verdict, then further details
ParameterCaratsKode
PriceFree — better$1.99
Rating3.7 (3 ratings) — better—
Positive reviews87.5% of reviews—
Number of ratings3 — better—
Update frequencyEvery 3 monthsEvery 3 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationPaid—
DevicesiPhone, iPad — betteriPhone
Requires iOS17.617.0 — better
Further details — not scored
Size12 MB3 MB
Age rating4+4+
DeveloperVerosocial StudioCommanigy

In-app purchases

2 purchases

Carats

Subscriptions1
  • Carats Pro$1.991 Month
One-time1
  • Carats Pro$14.99
None

Kode

No in-app purchases

Questions

Is Carats free?
Carats is free to download, with in-app purchases available.
Is Kode free?
Kode costs $1.99, with no in-app purchases.
Do Carats or Kode have ads?
Neither Carats nor Kode shows ads.
Which is updated more often, Carats or Kode?
Carats ships an update every 3 months, and Kode every 3 days. Most recently, Carats was updated on October 29, 2026 and Kode on October 30, 2026.

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