# Assistant for Arkham Horror vs Convex Programmer's Calculator

The clearest difference is price: Convex Programmer's Calculator at Free against Assistant for Arkham Horror's $4.99. Convex Programmer's Calculator also leads on rating (4.7 vs 3.5) and in-app purchases (none vs 4). Assistant for Arkham Horror's advantage is update cadence (every 6 weeks vs every 8 months) and device support (3 vs 1). On review sentiment, ratings volume and ads there is nothing between them.

Convex Programmer's Calculator is free to download; Assistant for Arkham Horror costs $4.99 up front. Assistant for Arkham Horror sells 4 one-off in-app purchases. Convex Programmer's Calculator asks for nothing beyond the download.

Convex Programmer's Calculator holds the better App Store score, 4.7 against 3.5. Both are backed by a comparable volume of ratings — 6 and 6 respectively. Written reviews split almost evenly too, at 67% and 67% positive.

Assistant for Arkham Horror ships an update every 6 weeks, Convex Programmer's Calculator every 8 months. The most recent releases landed on October 19, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Assistant for Arkham Horror | Convex Programmer's Calculator |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | [3.5 (6 ratings)](https://appshunter.io/ios/app/assistant-for-arkham-horror/id1020261740/reviews) | **[4.7 (6 ratings)](https://appshunter.io/ios/app/convex-programmers-calculator/id1021414602/reviews)** |
| Number of ratings | 6 | 6 |
| Positive reviews | 66.7% of reviews | 66.7% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 8 months |
| Monetization | Paid | **Free** |
| Size | 83 MB | 0 MB |
| Requires iOS | **11.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 9+ | 4+ |
| Developer | [Petr Hejkal](https://appshunter.io/developer/1020261739) | [Matthew Daigle](https://appshunter.io/developer/1021414601) |

## What reviewers say

### Assistant for Arkham Horror

[App page](https://appshunter.io/ios/app/assistant-for-arkham-horror/id1020261740)

This app acts as a digital substitute for physical game components for Arkham Horror. It includes interactive sheets for investigators and ancient ones, game rules, and reference materials. Additional content is available through in-app purchases.

**Highlights:** Interactive Investigator sheets, Ancient One tracking, Game rules reference, Player reference sheet, Custom community sheets, Expansion content via IAP

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Kingsport Horror | $1.99 | one-time |
| Game Rules | $1.99 | one-time |
| Dunwich Horror | $2.99 | one-time |
| Innsmouth Horror | $2.99 | one-time |


### Convex Programmer's Calculator

[App page](https://appshunter.io/ios/app/convex-programmers-calculator/id1021414602)

Convert numbers between hexadecimal, decimal, octal, and binary. Perform byte flips, bit shifts, and calculate two's complement. Features bit indicators and word grouping for improved binary readability.

**Highlights:** Number base conversion, Two's complement calculation, Byte flipping for endianness, Left and right bit shifting, Binary readability enhancements, Copy, paste, and clear functionality

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Assistant for Arkham Horror free?

Assistant for Arkham Horror costs $4.99, and also offers in-app purchases.

### Is Convex Programmer's Calculator free?

Convex Programmer's Calculator is free to download, with no in-app purchases.

### Which has better reviews, Assistant for Arkham Horror or Convex Programmer's Calculator?

Convex Programmer's Calculator is rated higher. Assistant for Arkham Horror averages 3.5 out of 5 from 6 ratings, while Convex Programmer's Calculator averages 4.7 from 6 ratings.

### Do Assistant for Arkham Horror or Convex Programmer's Calculator have ads?

Neither Assistant for Arkham Horror nor Convex Programmer's Calculator shows ads.

### Which is updated more often, Assistant for Arkham Horror or Convex Programmer's Calculator?

Assistant for Arkham Horror ships an update every 6 weeks, and Convex Programmer's Calculator every 8 months. Most recently, Assistant for Arkham Horror was updated on October 19, 2026 and Convex Programmer's Calculator on October 24, 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.*