# Delta EPA vs PLC Ninja

The clearest difference is review sentiment: PLC Ninja at 100% against Delta EPA's 0%. PLC Ninja also leads on rating (5.0 vs 2.0) and update cadence (every 3 weeks vs every 9 months). Delta EPA's advantage is in-app purchases (none vs 6) and ratings volume (27 vs 3). On price and ads there is nothing between them.

Both are free to download. PLC Ninja sells 6 in-app purchases, starting at $3.99 per month. Delta EPA asks for nothing beyond the download.

PLC Ninja holds the better App Store score, 5.0 against 2.0. That said, the two scores are not equally well evidenced: Delta EPA has 27 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 0% of Delta EPA's written reviews are positive against 100% of PLC Ninja's.

Delta EPA ships an update every 9 months, PLC Ninja every 3 weeks. The most recent releases landed on October 17, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Delta EPA | PLC Ninja |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (27 ratings)](https://appshunter.io/ios/app/delta-epa/id898232550/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/plc-ninja/id6805188950/reviews)** |
| Number of ratings | **27** | 3 |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 3 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 174 MB | 10 MB |
| Requires iOS | **12.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Delta Electric Power Association](https://appshunter.io/developer/898232553) | [SHAOHUA YI](https://appshunter.io/developer/6805189132) |

## What reviewers say

### Delta EPA

[App page](https://appshunter.io/ios/app/delta-epa/id898232550)

Manage your electricity account conveniently on the go. Access account details, view bills and balances, make payments, and schedule alerts. Receive push notifications for important updates.

**Highlights:** Fast, secure account access, Manage account details, View bills and balances, Make payments, Find payment locations, Schedule alerts and reminders, Receive push notifications

**Features:** macOS Compatibility

**In-app purchases:** none


### PLC Ninja

[App page](https://appshunter.io/ios/app/plc-ninja/id6805188950)

Access live PLC data directly from your mobile device. Connect via Ethernet, Wi-Fi, or serial adapter to monitor inputs, outputs, timers, counters, and analog values in real-time while in the field.

**Highlights:** Real-time PLC data monitoring, Ethernet, Wi-Fi, and serial connection support, View inputs and outputs, Monitor timers and counters, Access analog values

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Standard | $3.99 | per month |
| Professional | $8.99 | per month |
| Ultimate | $14.99 | per month |
| Standard | $39.99 | per year |
| Professional | $89.99 | per year |
| Ultimate | $149.99 | per year |


## Frequently asked questions

### Is Delta EPA free?

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

### Is PLC Ninja free?

PLC Ninja is free to download, with in-app purchases available.

### Which has better reviews, Delta EPA or PLC Ninja?

PLC Ninja is rated higher. Delta EPA averages 2.0 out of 5 from 27 ratings, while PLC Ninja averages 5.0 from 3 ratings.

### Do Delta EPA or PLC Ninja have ads?

Neither Delta EPA nor PLC Ninja shows ads.

### Which is updated more often, Delta EPA or PLC Ninja?

Delta EPA ships an update every 9 months, and PLC Ninja every 3 weeks. Most recently, Delta EPA was updated on October 17, 2026 and PLC Ninja on October 5, 2026.

---

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