Carit vs Driv.one
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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
Driv.one
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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
Verdict
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
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.
Carit ships an update fortnightly, Driv.one every 5 days. The most recent releases landed on October 31, 2026 and October 29, 2026 respectively.
| Parameter | Carit | Driv.one |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (17 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 17 — better | — |
| Update frequency | Fortnightly | Every 5 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | — |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.1 — better | 15.5 |
| Further details — not scored | ||
| Size | 87 MB | 38 MB |
| Age rating | 4+ | 4+ |
| Developer | Atelier Barnard SL | Mi Taller |
In-app purchases
Carit
- Carit Pro Monthly Subscription7 Days trial$8.991 Month
- Carit Pro Yearly Subscription7 Days trial$69.991 Year
Driv.one
No in-app purchases









