# Viewtech vs SA PetChem

The clearest difference is update cadence: SA PetChem at every 2 weeks against Viewtech's every 3 months. SA PetChem also leads on iOS requirement (15 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

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

Viewtech ships an update every 3 months, SA PetChem every 2 weeks. The most recent releases landed on September 18, 2026 and September 5, 2026 respectively.

## The numbers

| Metric | Viewtech | SA PetChem |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Size | 128 MB | 58 MB |
| Requires iOS | 17.0 | **15** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Viewtech](https://appshunter.io/developer/1108507224) | [Hossam Hassan](https://appshunter.io/developer/1844216882) |

## What reviewers say

### Viewtech

[App page](https://appshunter.io/ios/app/viewtech/id6749441978)

**Features:** macOS Compatibility

**In-app purchases:** none


### SA PetChem

[App page](https://appshunter.io/ios/app/sa-petchem/id6753659023)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Viewtech free?

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

### Is SA PetChem free?

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

### Do Viewtech or SA PetChem have ads?

Neither Viewtech nor SA PetChem shows ads.

### Which is updated more often, Viewtech or SA PetChem?

Viewtech ships an update every 3 months, and SA PetChem every 2 weeks. Most recently, Viewtech was updated on September 18, 2026 and SA PetChem on September 5, 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.*