# iBIOSYS vs SIC4343 pH

iBIOSYS and SIC4343 pH are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

iBIOSYS ships an update every 4 months, SIC4343 pH every 5 months. The most recent releases landed on October 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | iBIOSYS | SIC4343 pH |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 5 months |
| Size | 18 MB | 19 MB |
| Requires iOS | **12.0** | 13 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Refresh Biosensing Technology Co., Ltd.](https://appshunter.io/developer/1405391433) | [SILICON CRAFT TECHNOLOGY PUBLIC COMPANY LIMITED](https://appshunter.io/developer/1279674870) |

## What reviewers say

### iBIOSYS

[App page](https://appshunter.io/ios/app/ibiosys/id1580663553)

**Features:** macOS Compatibility

**In-app purchases:** none


### SIC4343 pH

[App page](https://appshunter.io/ios/app/sic4343-ph/id6448841085)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is iBIOSYS free?

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

### Is SIC4343 pH free?

SIC4343 pH is free to download, with no in-app purchases.

### Do iBIOSYS or SIC4343 pH have ads?

Neither iBIOSYS nor SIC4343 pH shows ads.

### Which is updated more often, iBIOSYS or SIC4343 pH?

iBIOSYS ships an update every 4 months, and SIC4343 pH every 5 months. Most recently, iBIOSYS was updated on October 3, 2026 and SIC4343 pH on October 30, 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.*