# UPMR Tools vs Carit

The clearest difference is in-app purchases: UPMR Tools at none against Carit's 2. UPMR Tools also leads on iOS requirement (12.0 vs 15.1). Carit's advantage is update cadence (fortnightly vs every 3 months). On price, ads and device support there is nothing between them.

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

UPMR Tools ships an update every 3 months, Carit fortnightly. The most recent releases landed on September 5, 2026 and August 23, 2026 respectively.

## The numbers

| Metric | UPMR Tools | 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 | Every 3 months | **Fortnightly** |
| Monetization | — | Freemium |
| Size | 27 MB | 87 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [United Precious Metal Refining, Inc.](https://appshunter.io/developer/1784671872) | [Atelier Barnard SL](https://appshunter.io/developer/1890007365) |

## What reviewers say

### UPMR Tools

[App page](https://appshunter.io/ios/app/upmr-tools/id6739284967)

**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 UPMR Tools free?

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

### Is Carit free?

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

### Do UPMR Tools or Carit have ads?

Neither UPMR Tools nor Carit shows ads.

### Which is updated more often, UPMR Tools or Carit?

UPMR Tools ships an update every 3 months, and Carit fortnightly. Most recently, UPMR Tools was updated on September 5, 2026 and Carit on August 23, 2026.

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