# RiverEnergia vs Call Shield

The clearest difference is in-app purchases: RiverEnergia at none against Call Shield's 1. RiverEnergia also leads on device support (3 vs 1) and iOS requirement (15.1 vs 18.0). Call Shield's advantage is update cadence (every 2 weeks vs every 3 months). On price and ads there is nothing between them.

Both are free to download. Call Shield sells 1 in-app purchase, starting at $0.99 per month. RiverEnergia asks for nothing beyond the download.

RiverEnergia ships an update every 3 months, Call Shield every 2 weeks. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | RiverEnergia | Call Shield |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Size | 44 MB | 17 MB |
| Requires iOS | **15.1** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Boostar](https://appshunter.io/developer/1395899333) | [Orazio Dell'Osa](https://appshunter.io/developer/1886840582) |

## What reviewers say

### RiverEnergia

[App page](https://appshunter.io/ios/app/riverenergia/id6740267242)

**Features:** macOS Compatibility

**In-app purchases:** none


### Call Shield

[App page](https://appshunter.io/ios/app/call-shield-spam-blocker/id6767889573)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Call Shield Pro Monthly | $0.99 | per month |


## Frequently asked questions

### Is RiverEnergia free?

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

### Is Call Shield free?

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

### Do RiverEnergia or Call Shield have ads?

Neither RiverEnergia nor Call Shield shows ads.

### Which is updated more often, RiverEnergia or Call Shield?

RiverEnergia ships an update every 3 months, and Call Shield every 2 weeks. Most recently, RiverEnergia was updated on October 30, 2026 and Call Shield on October 31, 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.*