# PROG_CALC vs 三界助手

The clearest difference is in-app purchases: PROG_CALC at none against 三界助手's 6. PROG_CALC also leads on iOS requirement (13 vs 15.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. 三界助手 sells 6 one-off in-app purchases. PROG_CALC asks for nothing beyond the download.

PROG_CALC ships an update every 2 weeks, 三界助手 weekly. The most recent releases landed on October 24, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | PROG_CALC | 三界助手 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/prog-calc/id1640426491/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Weekly** |
| Monetization | Free | — |
| Size | 78 MB | 40 MB |
| Requires iOS | **13** | 15.6 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [嘉欣 胡](https://appshunter.io/developer/1640395440) | [祥利 管](https://appshunter.io/developer/1553028619) |

## What reviewers say

### PROG_CALC

[App page](https://appshunter.io/ios/app/prog-calc/id1640426491)

This app offers a programmable calculator with two distinct modes for daily computing and advanced mathematical functions. It supports system conversions between binary, octal, decimal, and hexadecimal, and allows for variable storage and code sharing.

**Highlights:** Basic and advanced calculation modes, Syntax parser, Variable storage and editing, Binary, octal, decimal, hexadecimal conversion, Built-in code examples, Code sharing via QR code or file

**In-app purchases:** none


### 三界助手

[App page](https://appshunter.io/ios/app/id6767830768)

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 8000仙玉 | $0.99 | one-time |
| 28000仙玉 | $3.99 | one-time |
| 168000仙玉 | $9.99 | one-time |
| 168000仙玉 | $24.99 | one-time |
| 298000仙玉 | $39.99 | one-time |
| 698000仙玉 | $99.99 | one-time |


## Frequently asked questions

### Is PROG_CALC free?

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

### Is 三界助手 free?

三界助手 is free to download, with in-app purchases available.

### Do PROG_CALC or 三界助手 have ads?

Neither PROG_CALC nor 三界助手 shows ads.

### Which is updated more often, PROG_CALC or 三界助手?

PROG_CALC ships an update every 2 weeks, and 三界助手 weekly. Most recently, PROG_CALC was updated on October 24, 2026 and 三界助手 on October 31, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*