Comparison

Carit vs Driv.one

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

Head to head
About

Carit

This toolkit assists bench jewelers with calculations for ring sizing, metal valuation, stone dimensions, and alloy mixing. It offers a comprehensive reference library and quote building tools, with a free tier and a Pro version for advanced features.

Highlights
  • Ring size and stone size charts
  • Live precious metal spot prices
  • Metal value and casting weight calculators
  • Unit and alloy conversion tools
  • Model and reference library
  • Quote builder with export
Read full description

Carit is the essential calculator app for bench jewelers. Built by a working jeweler who got tired of spreadsheets, scrap paper, and guesswork. FREE FEATURES: - Ring size chart with international size systems - Live gold, silver, platinum and palladium spot prices - Stone size charts - round + 10 fancy shapes - Ring blank length - strip length for any ring size and gauge - Unit converter - weight and length, including fractions - Gemstones reference - 30 languages, multi-currency support PRO FEATURES (7-day free trial): - Metal value calculator - melt value at live spot, all karats - Casting weight - CAD/wax volume to metal weight, live pricing - Wire, sheet and tube weight calculator, live pricing - Investment mixing and burnout - flask volume and casting plan - Models Library - save your molds and CAD models, priced in any alloy - Reference library - gauges, alloys, saw blades, files, abrasives, solders - Ring weight, live pricing - Sizing calculator, live pricing - Stone weight estimation from dimensions - Pave TCW counter - Eternity calculator - Halo calculator - stone count, spacing and fit around any center stone - Parallel heel - V graver heel and rotation for dual-angle fixture - STL Viewer with ring size identification and live metal pricing - Polygon ring layout calculator - Alloy mixing - build or convert any gold/silver alloy - Scrap buying calculator - what to pay for scrap metal - Full quote builder with import and export (XLSX) and local saving Whether you're sizing a ring, quoting a commission, or mixing an alloy at the bench - Carit gives you the answer in seconds. NO ACCOUNT NEEDED Carit works without an email, login, or signup. Your data stays on your device. WHO IT'S FOR - Bench jewelers and goldsmiths - Silversmiths and metalsmiths - Custom and bespoke makers - Repair and restoration workshops - Jewelry students and apprentices - Independent designers and small studios Built by a working jeweler. For jewelers. Questions or feedback? Email hello@getcarit.com or visit getcarit.com. Terms of Use: https://getcarit.com/terms.html Privacy Policy: https://getcarit.com/privacy.html

About

Driv.one

Features
Read full description

Driv.one is the app for drivers who want their vehicles under control. GARAGES NEAR YOU • Find nearby workshops using your location, filtered by what you need: maintenance, brakes, tyres, electrics, bodywork, car wash and more. • See whether a garage is open, closed or works by appointment, with its real opening hours. • Call, message on WhatsApp or navigate to the garage with one tap. YOUR VEHICLES • Register all your vehicles: car, motorcycle, SUV, van or truck. • Keep plates, mileage, documents and photos in one place. • Get reminders for maintenance, technical inspection and insurance. COSTS AND BILLS • Track fuel, maintenance and repair costs per vehicle. • Monthly and yearly overview with your average cost per vehicle. • Store your bills and find them when you need them. ROADSIDE HELP • One-tap emergency: police, tow truck and your insurer's number for the selected vehicle. CARPLAY • Driv.one also runs on your car's screen: emergency, nearby garages by category and your vehicles, while driving and without touching the phone. MARKET • Buy and sell vehicles from private owners and trusted garages. Available in English, Dutch, French, Spanish and Portuguese.

Screenshots

Carit4 screens
Driv.one4 screens

Verdict

The call

The clearest difference is in-app purchases: Driv.one at none against Carit's 2. Driv.one also leads on update cadence (every 5 days vs fortnightly). On price, 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

Both are free to download. Carit sells 2 in-app purchases, starting at $8.99 per month. Driv.one asks for nothing beyond the download.

UpkeepUpdate frequency

Carit ships an update fortnightly, Driv.one every 5 days. The most recent releases landed on October 31, 2026 and October 29, 2026 respectively.

Scorecard2 real differences · 8 level
Carit versus Driv.one: the parameters behind the verdict, then further details
ParameterCaritDriv.one
PriceFreeFree
Rating4.8 (17 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings17 — better—
Update frequencyFortnightlyEvery 5 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemium—
DevicesiPhone, iPodiPhone, iPod
Requires iOS15.1 — better15.5
Further details — not scored
Size87 MB38 MB
Age rating4+4+
DeveloperAtelier Barnard SLMi Taller

In-app purchases

2 purchases

Carit

Subscriptions2
  • Carit Pro Monthly Subscription7 Days trial$8.991 Month
  • Carit Pro Yearly Subscription7 Days trial$69.991 Year
None

Driv.one

No in-app purchases

Questions

Is Carit free?
Carit is free to download, with in-app purchases available.
Is Driv.one free?
Driv.one is free to download, with no in-app purchases.
Do Carit or Driv.one have ads?
Neither Carit nor Driv.one shows ads.
Which is updated more often, Carit or Driv.one?
Carit ships an update fortnightly, and Driv.one every 5 days. Most recently, Carit was updated on October 31, 2026 and Driv.one on October 29, 2026.

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