# SMSPool vs ECG Operation Zero

The clearest difference is rating: ECG Operation Zero at 4.0 against SMSPool's 3.3. ECG Operation Zero also leads on in-app purchases (none vs 5) and iOS requirement (12.0 vs 17.0). SMSPool's advantage is update cadence (every 5 days vs fortnightly) and ratings volume (16 vs 1). On price, ads and device support there is nothing between them.

Both are free to download. SMSPool sells 5 one-off in-app purchases. ECG Operation Zero asks for nothing beyond the download.

ECG Operation Zero holds the better App Store score, 4.0 against 3.3. That said, the two scores are not equally well evidenced: SMSPool has 16 ratings behind it against 1, so its average is the more settled of the two.

SMSPool ships an update every 5 days, ECG Operation Zero fortnightly. The most recent releases landed on November 8, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | SMSPool | ECG Operation Zero |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.3 (16 ratings)](https://appshunter.io/ios/app/smspool-receive-sms-online/id6474617801/reviews) | **[4.0 (1 ratings)](https://appshunter.io/ios/app/ecg-operation-zero/id6474657668/reviews)** |
| Number of ratings | **16** | 1 |
| Positive reviews | 73.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 5 days** | Fortnightly |
| Monetization | Free with in-app purchases | **Free** |
| Size | 11 MB | 71 MB |
| Requires iOS | 17.0 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 12+ | 17+ |
| Developer | [SMSPool](https://appshunter.io/developer/1722088167) | [Electricity Company of Ghana Ltd.](https://appshunter.io/developer/1398352883) |

## What reviewers say

### SMSPool

[App page](https://appshunter.io/ios/app/smspool-receive-sms-online/id6474617801)

This app provides temporary, real phone numbers from over 150 countries to receive SMS verification codes. It ensures codes arrive in real-time and offers refunds for unused numbers. Ideal for accessing services that require SMS verification without using your personal number.

**Highlights:** Real phone numbers, not VoIP, 150+ countries supported, Real-time SMS code delivery, Automatic refunds for unused numbers, Number rental for extended use, Private account creation, 24/7 customer support

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| €1.99 | $1.99 | one-time |
| €9.99 | $8.99 | one-time |
| €18.99 | $17.99 | one-time |
| €37.99 | $34.99 | one-time |
| €86.99 | $79.99 | one-time |


### ECG Operation Zero

[App page](https://appshunter.io/ios/app/ecg-operation-zero/id6474657668)

This app empowers electricity company staff to combat revenue losses caused by illegal electricity consumption. It provides the necessary information and processes to address issues like illegal connections and meter tampering, contributing to a more stable power supply.

**Highlights:** Combat revenue losses, Address illegal consumption, Tackle meter tampering, Improve power stability, Equip field staff, Fight nationwide power cuts

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SMSPool free?

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

### Is ECG Operation Zero free?

ECG Operation Zero is free to download, with no in-app purchases.

### Which has better reviews, SMSPool or ECG Operation Zero?

ECG Operation Zero is rated higher. SMSPool averages 3.3 out of 5 from 16 ratings, while ECG Operation Zero averages 4.0 from 1 ratings.

### Do SMSPool or ECG Operation Zero have ads?

Neither SMSPool nor ECG Operation Zero shows ads.

### Which is updated more often, SMSPool or ECG Operation Zero?

SMSPool ships an update every 5 days, and ECG Operation Zero fortnightly. Most recently, SMSPool was updated on November 8, 2026 and ECG Operation Zero on November 4, 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.*