# PSI ARM vs SmartOkO

The clearest difference is update cadence: SmartOkO at weekly against PSI ARM's every 3 months. 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.

PSI ARM ships an update every 3 months, SmartOkO weekly. The most recent releases landed on October 13, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | PSI ARM | SmartOkO |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/psi-arm/id1167433634/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Weekly** |
| Monetization | Free | — |
| Size | 27 MB | 51 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SOFTTECH NETWORK COMPANY LIMITED](https://appshunter.io/developer/1095604731) | [(주)헤리티지아이티](https://appshunter.io/developer/1711350320) |

## What reviewers say

### PSI ARM

[App page](https://appshunter.io/ios/app/psi-arm/id1167433634)

This application consolidates all purchase and sales details, outstanding balances, and payment schedules for technicians, alongside promotions. It offers secure and convenient access to information anytime, anywhere, with a fast and user-friendly interface.

**Highlights:** Purchase and sales detail tracking, Outstanding balance overview, Payment schedule management, Promotional information, Secure data access, User-friendly interface

**Features:** macOS Compatibility

**In-app purchases:** none


### SmartOkO

[App page](https://appshunter.io/ios/app/smartoko/id6761036677)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PSI ARM free?

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

### Is SmartOkO free?

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

### Do PSI ARM or SmartOkO have ads?

Neither PSI ARM nor SmartOkO shows ads.

### Which is updated more often, PSI ARM or SmartOkO?

PSI ARM ships an update every 3 months, and SmartOkO weekly. Most recently, PSI ARM was updated on October 13, 2026 and SmartOkO on October 21, 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.*