# DSD vs PSI Energy

The clearest difference is review sentiment: DSD at 50% against PSI Energy's 33%. DSD also leads on iOS requirement (9.0 vs 12.0). On price, update cadence, ads and in-app purchases there is nothing between them.

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

DSD ships an update every 3 weeks, PSI Energy fortnightly. The most recent releases landed on November 7, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | DSD | PSI Energy |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **50.0% of reviews** | 33.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | Free | Free |
| Size | 37 MB | 103 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Department of Skill Development](https://appshunter.io/developer/1194354847) | [SOFTTECH NETWORK COMPANY LIMITED](https://appshunter.io/developer/1095604731) |

## What reviewers say

### DSD

[App page](https://appshunter.io/ios/app/dsd/id1529223067)

Access government services, training course information, and skill development resources conveniently through a smartphone or tablet. This application provides direct access to public services, news, and contact information for relevant government departments.

**Highlights:** Training course information, Skill standard testing, Download certificates, Public relations news, Department location map, Frequently asked questions

**Features:** macOS Compatibility

**In-app purchases:** none


### PSI Energy

[App page](https://appshunter.io/ios/app/psi-energy/id1561898719)

Monitor your power consumption and energy production with this application. It provides an easy-to-use interface for tracking your PSI Energy devices.

**Highlights:** Power consumption monitoring, Energy production tracking, PSI Energy device integration, Ease of use, Real-time data

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is DSD free?

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

### Is PSI Energy free?

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

### Do DSD or PSI Energy have ads?

Neither DSD nor PSI Energy shows ads.

### Which is updated more often, DSD or PSI Energy?

DSD ships an update every 3 weeks, and PSI Energy fortnightly. Most recently, DSD was updated on November 7, 2026 and PSI Energy on November 3, 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.*