# SBS Go Phone vs Ring Sizer

The clearest difference is in-app purchases: SBS Go Phone at none against Ring Sizer's 6. SBS Go Phone also leads on iOS requirement (8.0 vs 13.4). Ring Sizer's advantage is update cadence (every 4 days vs every 5 weeks). On price, ads and device support there is nothing between them.

Both are free to download. Ring Sizer sells 6 in-app purchases, starting at $2.99 per 7 days. SBS Go Phone asks for nothing beyond the download.

SBS Go Phone ships an update every 5 weeks, Ring Sizer every 4 days. The most recent releases landed on October 24, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | SBS Go Phone | Ring Sizer |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 16.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 4 days** |
| Monetization | Free | — |
| Size | 11 MB | 46 MB |
| Requires iOS | **8.0** | 13.4 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SBSmobile](https://appshunter.io/developer/966111051) | [Fabrizio Beccaceci](https://appshunter.io/developer/1772065340) |

## What reviewers say

### SBS Go Phone

[App page](https://appshunter.io/ios/app/sbs-go-phone/id1301221619)

This app allows you to use a second SIM card from a case with your iPhone. Make calls, send texts, and manage your contacts using your secondary number.

**Highlights:** Use second SIM for calls and SMS, Access iPhone contacts, Real-time call and message notifications, Call register, Customizable ringtone, Network signal and SIM case battery indicator

**Features:** macOS Compatibility

**In-app purchases:** none


### Ring Sizer

[App page](https://appshunter.io/ios/app/ring-sizer-your-ring-size/id6736466968)

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ring Sizer Pro | $2.99 | per 7 days |
| Ring Sizer Pro | $5.99 | per month |
| Ring Sizer Pro | $6.99 | per month |
| Ring Sizer Pro | $29.99 | per year |
| RingSizer Lifetime | $14.99 | one-time |
| RingSizer Lifetime | $39.99 | one-time |


## Frequently asked questions

### Is SBS Go Phone free?

SBS Go Phone is free to download, with no in-app purchases.

### Is Ring Sizer free?

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

### Do SBS Go Phone or Ring Sizer have ads?

Neither SBS Go Phone nor Ring Sizer shows ads.

### Which is updated more often, SBS Go Phone or Ring Sizer?

SBS Go Phone ships an update every 5 weeks, and Ring Sizer every 4 days. Most recently, SBS Go Phone was updated on October 24, 2026 and Ring Sizer on October 18, 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.*