# NebulaSpeed vs SmartBooster

The clearest difference is review sentiment: NebulaSpeed at 98% against SmartBooster's 0%. NebulaSpeed also leads on rating (4.2 vs 4.0) and ratings volume (205 vs 24). SmartBooster's advantage is monetization model (free with in-app purchases vs subscription) and update cadence (weekly vs every 2 months). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. NebulaSpeed sells 2 in-app purchases, starting at $12.99 per 7 days and SmartBooster sells 3 in-app purchases, starting at $9.99 per 7 days. Whichever you choose, the download price is not the number that matters.

NebulaSpeed holds the better App Store score, 4.2 against 4.0. That said, the two scores are not equally well evidenced: NebulaSpeed has 205 ratings behind it against 24, so its average is the more settled of the two. Written reviews point the same way: 98% of NebulaSpeed's written reviews are positive against 0% of SmartBooster's.

NebulaSpeed ships an update every 2 months, SmartBooster weekly. Both last shipped on November 4, 2026.

## The numbers

| Metric | NebulaSpeed | SmartBooster |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (205 ratings)](https://appshunter.io/ios/app/nebulaspeed-stellar-cleanup/id6474349808/reviews)** | [4.0 (24 ratings)](https://appshunter.io/ios/app/smartbooster/id6636538985/reviews) |
| Number of ratings | **205** | 24 |
| Positive reviews | **97.7% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | Subscription | **Free with in-app purchases** |
| Size | 76 MB | 23 MB |
| Requires iOS | **13.0** | 17 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [UBO OF MAGIT LLC DOO](https://appshunter.io/developer/1771616529) | [GOLARIX LLC doo](https://appshunter.io/developer/1816868338) |

## What reviewers say

### NebulaSpeed

[App page](https://appshunter.io/ios/app/nebulaspeed-stellar-cleanup/id6474349808)

This app offers text-to-speech functionality for documents and messages, allowing you to listen to content on the go. It also includes image compression to save device space and a unique gaming mode for managing photos. Additionally, it provides tools for organizing your phone contacts.

**Highlights:** Text-to-speech for documents and messages, Image compression with minimal quality loss, Gaming mode for photo deletion and organization, Contact management and organization, Listen to specific text excerpts or entire documents

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Week | $12.99 | per 7 days |
| 12 Week | $69.99 | per 3 months |

**What reviewers like**

- 🚀 Optimized storage
- 🔒 Secure contact management
- 👍 Intuitive and user-friendly
- 👍 Enjoyable gallery cleaning
- 🚀 Efficient text-to-speech

**What reviewers complain about**

- 🐛 Occasional app crashes
- 🐛 Compatibility issues with older devices

**Reported bugs**

- Login screen freezes
- Incompatible with older Android versions

**Requested features**

- Dark mode option
- Advanced analytics dashboard
- Expanded text-to-speech capabilities


### 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 |


## Frequently asked questions

### Is NebulaSpeed free?

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

### Is SmartBooster free?

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

### Which has better reviews, NebulaSpeed or SmartBooster?

NebulaSpeed is rated higher. NebulaSpeed averages 4.2 out of 5 from 205 ratings, while SmartBooster averages 4.0 from 24 ratings.

### Do NebulaSpeed or SmartBooster have ads?

Neither NebulaSpeed nor SmartBooster shows ads.

### Which is updated more often, NebulaSpeed or SmartBooster?

NebulaSpeed ships an update every 2 months, and SmartBooster weekly. Most recently, NebulaSpeed was updated on November 4, 2026 and SmartBooster on November 4, 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.*