# Simple Hex Calc vs Librarian

The clearest difference is review sentiment: Simple Hex Calc at 94% against Librarian's 47%. Simple Hex Calc also leads on ads (none vs shown). Librarian's advantage is price (Free vs $0.99) and iOS requirement (18.6 vs 27.0). On update cadence, in-app purchases and device support there is nothing between them.

Librarian is free to download; Simple Hex Calc costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Simple Hex Calc ships an update every 5 months, Librarian every 4 months. The most recent releases landed on October 22, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Simple Hex Calc | Librarian |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[4.5 (8 ratings)](https://appshunter.io/ios/app/simple-hex-calc/id335773208/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | **94.4% of reviews** | 47.1% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 5 months | **Every 4 months** |
| Monetization | Paid | **Ad-supported** |
| Size | 1 MB | 8 MB |
| Requires iOS | 27.0 | **18.6** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Hiroki Ishiura](https://appshunter.io/developer/335773211) | [shinichi tanimoto](https://appshunter.io/developer/338978015) |

## What reviewers say

### Simple Hex Calc

[App page](https://appshunter.io/ios/app/simple-hex-calc/id335773208)

This utility app provides IT programmers with a pocket calculator for performing arithmetic and logical operations on numbers in various bases. It offers extensive configuration options for bit length, signed/unsigned modes, and data display formats, with a reference manual included.

**Highlights:** Arithmetic and logical operations, Multiple number base support (2/8/10/16), Bit shift, rotate, set, clear, and order operations, Memory operations (save, load, swap), Configurable bit length and signed/unsigned modes, Cut, copy, and paste results, Reference manual included

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

**In-app purchases:** none


### Librarian

[App page](https://appshunter.io/ios/app/librarian-library-search/id383815613)

Easily find libraries and books across Japan. Search by map, area, or your current location, and look for books by keyword or genre. Check book availability at nearby libraries.

**Highlights:** Search libraries by map, Search libraries by area, Search libraries by current location, Search books by keyword, Search books by genre, Check book availability

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

**In-app purchases:** none


## Frequently asked questions

### Is Simple Hex Calc free?

Simple Hex Calc costs $0.99, with no in-app purchases.

### Is Librarian free?

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

### Do Simple Hex Calc or Librarian have ads?

Librarian shows ads; Simple Hex Calc does not.

### Which is updated more often, Simple Hex Calc or Librarian?

Simple Hex Calc ships an update every 5 months, and Librarian every 4 months. Most recently, Simple Hex Calc was updated on October 22, 2026 and Librarian on October 19, 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.*