# SmartBooster vs Doctor Shield

The clearest difference is review sentiment: Doctor Shield at 88% against SmartBooster's 0%. Doctor Shield also leads on rating (4.3 vs 4.0). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. SmartBooster sells 3 in-app purchases, starting at $9.99 per 7 days and Doctor Shield sells 4 in-app purchases, starting at $7.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Doctor Shield holds the better App Store score, 4.3 against 4.0. Both are backed by a comparable volume of ratings — 24 and 12 respectively. Written reviews point the same way: 0% of SmartBooster's written reviews are positive against 88% of Doctor Shield's.

SmartBooster ships an update weekly, Doctor Shield every 6 days. The most recent releases landed on October 2, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | SmartBooster | Doctor Shield |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (24 ratings)](https://appshunter.io/ios/app/smartbooster/id6636538985/reviews) | **[4.3 (12 ratings)](https://appshunter.io/ios/app/doctor-shield-security-boost/id6736618922/reviews)** |
| Number of ratings | **24** | 12 |
| Positive reviews | 0.0% of reviews | **87.5% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Every 6 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 23 MB | 53 MB |
| Requires iOS | **17** | 17.5 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [GOLARIX LLC doo](https://appshunter.io/developer/1816868338) | [Raven Panna](https://appshunter.io/developer/1765725341) |

## What reviewers say

### SmartBooster

[App page](https://appshunter.io/ios/app/smartbooster/id6636538985)

Optimize your iPhone's storage and efficiency with a suite of tools designed to clean unnecessary files, manage contacts, and enhance photos. This app helps declutter your device, improve responsiveness, and secure sensitive information, offering a comprehensive solution for device organization.

**Highlights:** Memory and storage cleanup, Contact list organization, Duplicate photo detection and enhancement, Secret contacts management, Internet speed test, Regular device scans

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Week | $9.99 | per 7 days |
| Quarter | $69.99 | per 3 months |
| premium | $79.99 | per year |


### Doctor Shield

[App page](https://appshunter.io/ios/app/doctor-shield-security-boost/id6736618922)

Optimize your iPhone's battery life and performance with this utility app. Analyze battery status, estimate usage time, and receive personalized tips to extend your device's lifespan and maintain its health.

**Highlights:** Analyze battery status and lifespan, Estimate remaining usage time, Receive energy-saving tips, Device maintenance checklist, Monitor app energy consumption

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekabonnement | $7.99 | per 7 days |
| Week proefabonnement | $7.99 | per 7 days |
| Weekabonnement | $9.99 | per 7 days |
| Week proefabonnement | $9.99 | per 7 days |


## Frequently asked questions

### Is SmartBooster free?

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

### Is Doctor Shield free?

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

### Which has better reviews, SmartBooster or Doctor Shield?

Doctor Shield is rated higher. SmartBooster averages 4.0 out of 5 from 24 ratings, while Doctor Shield averages 4.3 from 12 ratings.

### Do SmartBooster or Doctor Shield have ads?

Neither SmartBooster nor Doctor Shield shows ads.

### Which is updated more often, SmartBooster or Doctor Shield?

SmartBooster ships an update weekly, and Doctor Shield every 6 days. Most recently, SmartBooster was updated on October 2, 2026 and Doctor Shield on October 16, 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.*