# HP16C vs my16c

The clearest difference is in-app purchases: HP16C at none against my16c's 1. HP16C also leads on iOS requirement (17.0 vs 26.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. my16c sells 1 one-off in-app purchase. HP16C asks for nothing beyond the download.

HP16C ships an update weekly, my16c fortnightly. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | HP16C | my16c |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (4 ratings)](https://appshunter.io/ios/app/hp16c/id6761774728/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Fortnightly |
| Monetization | **Free** | Free with in-app purchases |
| Size | 1 MB | 9 MB |
| Requires iOS | **17.0** | 26.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Michael Doornbos](https://appshunter.io/developer/1891405652) | [Miroslav Perovic](https://appshunter.io/developer/400748424) |

## What reviewers say

### HP16C

[App page](https://appshunter.io/ios/app/hp16c/id6761774728)

This app faithfully recreates the legendary HP 16C Computer Scientist calculator, offering advanced hex arithmetic, bit manipulation, and base conversion. It features RPN, keystroke programming, and modern enhancements like a two-line display and haptic feedback.

**Highlights:** Full RPN calculator, Integer arithmetic (HEX, DEC, OCT, BIN), Configurable word size (1-64 bits), Complete bit operations, Keystroke programming, Two-line display, Haptic feedback

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

**In-app purchases:** none


### my16c

[App page](https://appshunter.io/ios/app/my16c/id6762121583)

This app emulates a legendary programmer's calculator from the 1980s, offering cycle-accurate performance and faithful reproduction of its features. It includes base conversions, bit manipulation, RPN, and programmability, with modern conveniences like iCloud sync and a dark interface.

**Highlights:** Cycle-accurate emulation, Full base conversion (HEX, DEC, OCT, BIN), Bit operations, RPN entry, Programmable, Authentic LCD display, Word size control

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Full App | $9.99 | one-time |


## Frequently asked questions

### Is HP16C free?

HP16C is free to download, with no in-app purchases.

### Is my16c free?

my16c is free to download, with in-app purchases available.

### Do HP16C or my16c have ads?

Neither HP16C nor my16c shows ads.

### Which is updated more often, HP16C or my16c?

HP16C ships an update weekly, and my16c fortnightly. Most recently, HP16C was updated on October 24, 2026 and my16c on October 28, 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.*