# RaspIoTzero vs Second Phone Number for You

The clearest difference is in-app purchases: RaspIoTzero at none against Second Phone Number for You's 6. Second Phone Number for You's advantage is update cadence (every 4 days vs every 12 months) and iOS requirement (15.0 vs 18.6). On price, ads and device support there is nothing between them.

Both are free to download. Second Phone Number for You sells 6 in-app purchases, starting at $7.99 per 7 days. RaspIoTzero asks for nothing beyond the download.

RaspIoTzero ships an update every 12 months, Second Phone Number for You every 4 days. The most recent releases landed on November 2, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | RaspIoTzero | Second Phone Number for You |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.4 (399 ratings)](https://appshunter.io/ios/app/second-phone-number-for-you/id6747321846/reviews)** |
| Number of ratings | — | **399** |
| Positive reviews | — | 4.5% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 4 days** |
| Monetization | — | Free with in-app purchases |
| Size | 0 MB | 66 MB |
| Requires iOS | 18.6 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Atsushi Yamada](https://appshunter.io/developer/301497489) | [Marvin Wimmer](https://appshunter.io/developer/1771470022) |

## What reviewers say

### RaspIoTzero

[App page](https://appshunter.io/ios/app/raspiotzero/id1240696141)

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

**In-app purchases:** none


### Second Phone Number for You

[App page](https://appshunter.io/ios/app/second-phone-number-for-you/id6747321846)

Easily obtain a secondary phone number for calls, texts, and voicemail, all managed within a single application. Protect your personal number's privacy with advanced call screening and blocking features. Enjoy unlimited communication over WiFi, independent of your mobile data plan.

**Highlights:** Get a second phone number, Unlimited calling and texting, Keep personal number private, Advanced call screening and blocking, Caller ID, Works over WiFi, Manage multiple lines

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Weekly Access | $7.99 | per 7 days |
| Full Yealy Access | $49.99 | per year |
| 300 extra coins | $6.99 | one-time |
| 900 extra coins | $17.99 | one-time |
| 1200 Extra Coins | $29.99 | one-time |
| 5000 extra coins | $69.99 | one-time |


## Frequently asked questions

### Is RaspIoTzero free?

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

### Is Second Phone Number for You free?

Second Phone Number for You is free to download, with in-app purchases available.

### Do RaspIoTzero or Second Phone Number for You have ads?

Neither RaspIoTzero nor Second Phone Number for You shows ads.

### Which is updated more often, RaspIoTzero or Second Phone Number for You?

RaspIoTzero ships an update every 12 months, and Second Phone Number for You every 4 days. Most recently, RaspIoTzero was updated on November 2, 2026 and Second Phone Number for You on November 5, 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.*