# OTEC vs Carit

The clearest difference is in-app purchases: OTEC at none against Carit's 2. Carit's advantage is update cadence (fortnightly vs monthly). On price, ads, device support and iOS requirement there is nothing between them.

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

OTEC ships an update monthly, Carit fortnightly. The most recent releases landed on October 1, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | OTEC | Carit |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.9 (9 ratings)](https://appshunter.io/ios/app/carit/id6761501849/reviews)** |
| Number of ratings | — | **9** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Fortnightly** |
| Monetization | — | Freemium |
| Size | 24 MB | 87 MB |
| Requires iOS | **14.0.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [OTEC Präzisionsfinish GmbH](https://appshunter.io/developer/1860278470) | [Atelier Barnard SL](https://appshunter.io/developer/1890007365) |

## What reviewers say

### OTEC

[App page](https://appshunter.io/ios/app/otec/id6756361669)

**In-app purchases:** none


### Carit

[App page](https://appshunter.io/ios/app/carit/id6761501849)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Carit Pro Monthly Subscription | $8.99 | per month |
| Carit Pro Yearly Subscription | $69.99 | per year |


## Frequently asked questions

### Is OTEC free?

OTEC is free to download, with no in-app purchases.

### Is Carit free?

Carit is free to download, with in-app purchases available.

### Do OTEC or Carit have ads?

Neither OTEC nor Carit shows ads.

### Which is updated more often, OTEC or Carit?

OTEC ships an update monthly, and Carit fortnightly. Most recently, OTEC was updated on October 1, 2026 and Carit on October 6, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*