# Rax Softener vs ZeroB Smart Tech

The clearest difference is update cadence: Rax Softener at weekly against ZeroB Smart Tech's every 3 weeks. 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.

Rax Softener ships an update weekly, ZeroB Smart Tech every 3 weeks. Both last shipped on September 8, 2026.

## The numbers

| Metric | Rax Softener | ZeroB Smart Tech |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 3 weeks |
| Size | 61 MB | 55 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Rax Tech International](https://appshunter.io/developer/1494862664) | [ION EXCHANGE INDIA LIMITED](https://appshunter.io/developer/1839408491) |

## What reviewers say

### Rax Softener

[App page](https://appshunter.io/ios/app/rax-softener/id6742730488)

**Features:** macOS Compatibility

**In-app purchases:** none


### ZeroB Smart Tech

[App page](https://appshunter.io/ios/app/zerob-smart-tech/id6759641358)

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

**In-app purchases:** none


## Frequently asked questions

### Is Rax Softener free?

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

### Is ZeroB Smart Tech free?

ZeroB Smart Tech is free to download, with no in-app purchases.

### Do Rax Softener or ZeroB Smart Tech have ads?

Neither Rax Softener nor ZeroB Smart Tech shows ads.

### Which is updated more often, Rax Softener or ZeroB Smart Tech?

Rax Softener ships an update weekly, and ZeroB Smart Tech every 3 weeks. Most recently, Rax Softener was updated on September 8, 2026 and ZeroB Smart Tech on September 8, 2026.

---

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