# ERN Mobile vs Secnum

The clearest difference is in-app purchases: ERN Mobile at none against Secnum's 17. ERN Mobile also leads on iOS requirement (12.0 vs 15.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Secnum sells 12 in-app purchases, starting at $2.99 per month. ERN Mobile asks for nothing beyond the download.

ERN Mobile ships an update every 7 months, Secnum every 4 months. The most recent releases landed on October 7, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | ERN Mobile | Secnum |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.1 (9 ratings)](https://appshunter.io/ios/app/secnum/id1215632082/reviews)** |
| Number of ratings | — | **9** |
| Positive reviews | — | 18.2% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 4 months** |
| Monetization | — | Free with in-app purchases |
| Size | 12 MB | 17 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [E.R.N. ISRAEL LTD](https://appshunter.io/developer/1079396958) | [Cellact](https://appshunter.io/developer/1215632081) |

## What reviewers say

### ERN Mobile

[App page](https://appshunter.io/ios/app/ern-mobile/id1079396959)

**Features:** macOS Compatibility

**In-app purchases:** none


### Secnum

[App page](https://appshunter.io/ios/app/secnum/id1215632082)

Get a secondary Israeli mobile number on your existing SIM card for calls and texts. Manage your numbers with features like call forwarding and voicemail transcription. Subscription plans available for SMS and voice minutes.

**Highlights:** Secondary Israeli mobile number, Make and receive calls, Send and receive SMS, Port existing number, Voicemail transcription, Call forwarding, Block list

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

**In-app purchases (12)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Landline Monthly 500 MIN | $2.99 | per month |
| Monthly 500 SMS only | $3.99 | per month |
| Monthly 120 Plan | $4.99 | per month |
| Monthly 120 SMS/MIN | $4.99 | per month |
| Monthly 500 SMS + 500 minutes | $5.49 | per month |
| Monthly Calls & SMS | $6.49 | per month |
| Monthly 1500 SMS/MIN | $6.99 | per month |
| Monthly Calls & SMS | $8.99 | per month |
| Monthly 120 MIN/SMS | $9.99 | per month |
| Monthly 1000 SMS/MIN | $14.99 | per month |
| Premium service for 1 month | $7.99 | one-time |
| Replace current number | $9.99 | one-time |


## Frequently asked questions

### Is ERN Mobile free?

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

### Is Secnum free?

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

### Do ERN Mobile or Secnum have ads?

Neither ERN Mobile nor Secnum shows ads.

### Which is updated more often, ERN Mobile or Secnum?

ERN Mobile ships an update every 7 months, and Secnum every 4 months. Most recently, ERN Mobile was updated on October 7, 2026 and Secnum on October 11, 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.*