# Calculator + AR Ruler BLACK #1 vs Roulette Strategy Builder

The clearest difference is in-app purchases: Roulette Strategy Builder at none against Calculator + AR Ruler BLACK #1's 1. Calculator + AR Ruler BLACK #1's advantage is update cadence (every 9 days vs every 5 weeks) and iOS requirement (13.0 vs 16.4). On price, ads and device support there is nothing between them.

Both are free to download. Calculator + AR Ruler BLACK #1 sells 1 one-off in-app purchase. Roulette Strategy Builder asks for nothing beyond the download.

Calculator + AR Ruler BLACK #1 ships an update every 9 days, Roulette Strategy Builder every 5 weeks. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Calculator + AR Ruler BLACK #1 | Roulette Strategy Builder |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (19 ratings)](https://appshunter.io/ios/app/calculator-plus-ar-ruler-black-1/id6443492349/reviews)** | — |
| Number of ratings | **19** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 5 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 15 MB | 39 MB |
| Requires iOS | **13.0** | 16.4 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [DIGIID LLC](https://appshunter.io/developer/1051432431) | [OlikaOne LTD](https://appshunter.io/developer/1540812105) |

## What reviewers say

### Calculator + AR Ruler BLACK #1

[App page](https://appshunter.io/ios/app/calculator-plus-ar-ruler-black-1/id6443492349)

This utility app combines a standard calculator with an augmented reality ruler. Measure lengths by tapping points on your screen and instantly convert units. Perform calculations on surface area or other metrics using the integrated calculator.

**Highlights:** Augmented reality measuring ruler, Basic mathematical functions, Multiple unit conversion, Tap to measure length, Integrated calculator for surface area

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Platinum VIP Membership | $999.99 | one-time |


### Roulette Strategy Builder

[App page](https://appshunter.io/ios/app/roulette-strategy-builder/id6783908430)

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

**In-app purchases:** none


## Frequently asked questions

### Is Calculator + AR Ruler BLACK #1 free?

Calculator + AR Ruler BLACK #1 is free to download, with in-app purchases available.

### Is Roulette Strategy Builder free?

Roulette Strategy Builder is free to download, with no in-app purchases.

### Do Calculator + AR Ruler BLACK #1 or Roulette Strategy Builder have ads?

Neither Calculator + AR Ruler BLACK #1 nor Roulette Strategy Builder shows ads.

### Which is updated more often, Calculator + AR Ruler BLACK #1 or Roulette Strategy Builder?

Calculator + AR Ruler BLACK #1 ships an update every 9 days, and Roulette Strategy Builder every 5 weeks. Most recently, Calculator + AR Ruler BLACK #1 was updated on November 3, 2026 and Roulette Strategy Builder on October 31, 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.*