# DRC vs OneSpaceInterior

The clearest difference is price: OneSpaceInterior at Free against DRC's $9.99. DRC's advantage is update cadence (monthly vs every 2 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

OneSpaceInterior is free to download; DRC costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

DRC ships an update monthly, OneSpaceInterior every 2 months. The most recent releases landed on October 26, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | DRC | OneSpaceInterior |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | **[2.5 (21 ratings)](https://appshunter.io/ios/app/drc-diamond-rate-calc/id1470799776/reviews)** | — |
| Number of ratings | **21** | — |
| Positive reviews | 19.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | Paid | — |
| Size | 69 MB | 73 MB |
| Requires iOS | 15.6 | **14.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shah Deep Shrenik](https://appshunter.io/developer/1470730424) | [Nikit Agarwal](https://appshunter.io/developer/1712610280) |

## What reviewers say

### DRC

[App page](https://appshunter.io/ios/app/drc-diamond-rate-calc/id1470799776)

Calculate diamond prices, manage sales reports, and access market data with this industry-approved tool. Features include currency conversion, certificate sharing, and a GIA Cut estimator. Designed for professionals in the diamond trade.

**Highlights:** Diamond price calculation, Sales report management, B2B diamond marketplace, Certificate sharing (GIA, HRD, IGI), Currency conversion, GIA Cut estimator, Market price updates

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### OneSpaceInterior

[App page](https://appshunter.io/ios/app/onespaceinterior/id6469765402)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is DRC free?

DRC costs $9.99, with no in-app purchases.

### Is OneSpaceInterior free?

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

### Do DRC or OneSpaceInterior have ads?

Neither DRC nor OneSpaceInterior shows ads.

### Which is updated more often, DRC or OneSpaceInterior?

DRC ships an update monthly, and OneSpaceInterior every 2 months. Most recently, DRC was updated on October 26, 2026 and OneSpaceInterior on October 6, 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.*