# picocalc vs JHP byNSDev

The clearest difference is in-app purchases: JHP byNSDev at none against picocalc's 1. JHP byNSDev also leads on ads (none vs shown) and update cadence (every 7 months vs every 31 months). On price and device support there is nothing between them.

Both are free to download. picocalc sells 1 one-off in-app purchase. JHP byNSDev asks for nothing beyond the download.

picocalc ships an update every 31 months, JHP byNSDev every 7 months. The most recent releases landed on September 22, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | picocalc | JHP byNSDev |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/picocalc/id284740333/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 65.6% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 31 months | **Every 7 months** |
| Monetization | Free | — |
| Size | 6 MB | 26 MB |
| Requires iOS | 17.6 | **15.6** |
| Devices | **iPhone, iPad, Apple Watch, Vision Pro** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Masayuki Akamatsu](https://appshunter.io/developer/284722836) | [NIHON SYSTEM DEVELOPER CORPORATION](https://appshunter.io/developer/1198103734) |

## What reviewers say

### picocalc

[App page](https://appshunter.io/ios/app/picocalc/id284740333)

This app displays a single number on your home screen badge, which can be set, added to, or subtracted from. It's a minimalist tool for quick numerical reminders. Negative numbers and zero are not displayed on the badge.

**Highlights:** Set a number, Add to number, Subtract from number, Home screen badge display, Hides zero and negative numbers

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |


### JHP byNSDev

[App page](https://appshunter.io/ios/app/jhp-bynsdev/id1244732477)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is picocalc free?

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

### Is JHP byNSDev free?

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

### Do picocalc or JHP byNSDev have ads?

picocalc shows ads; JHP byNSDev does not.

### Which is updated more often, picocalc or JHP byNSDev?

picocalc ships an update every 31 months, and JHP byNSDev every 7 months. Most recently, picocalc was updated on September 22, 2026 and JHP byNSDev on September 16, 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.*