# Smart Purifier vs MonoBoost Cancel Subscriptions

The clearest difference is rating: MonoBoost Cancel Subscriptions at 4.4 against Smart Purifier's 1.0. MonoBoost Cancel Subscriptions also leads on ratings volume (5.4K vs 1) and update cadence (every 4 days vs fortnightly). Smart Purifier's advantage is in-app purchases (none vs 14) and ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. MonoBoost Cancel Subscriptions sells 13 in-app purchases, starting at $6.99 per 7 days. Smart Purifier asks for nothing beyond the download.

MonoBoost Cancel Subscriptions holds the better App Store score, 4.4 against 1.0. That said, the two scores are not equally well evidenced: MonoBoost Cancel Subscriptions has 5.4K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 0% of Smart Purifier's written reviews are positive against 14% of MonoBoost Cancel Subscriptions's.

Smart Purifier ships an update fortnightly, MonoBoost Cancel Subscriptions every 4 days. The most recent releases landed on June 4, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | Smart Purifier | MonoBoost Cancel Subscriptions |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/smart-purifier/id1535735160/reviews) | **[4.4 (5.4K ratings)](https://appshunter.io/ios/app/monoboost-cancel-subscriptions/id6740202306/reviews)** |
| Number of ratings | 1 | **5.4K** |
| Positive reviews | 0.0% of reviews | **13.7% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Fortnightly | **Every 4 days** |
| Monetization | **Free** | Free with in-app purchases |
| Best chart rank | — | **#79** |
| Size | 115 MB | 72 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [VIETTEL GROUP](https://appshunter.io/developer/1529233160) | [Mnboost Corp](https://appshunter.io/developer/1677361606) |

## What reviewers say

### Smart Purifier

[App page](https://appshunter.io/ios/app/smart-purifier/id1535735160)

Monitor and control your Smart Purifier air quality device. View real-time air quality data and adjust settings remotely. Ensure a healthy living environment with this connected appliance management tool.

**Highlights:** Remote device control, Real-time air quality monitoring, Device settings adjustment, Air purification management, Connected appliance integration

**In-app purchases:** none


### MonoBoost Cancel Subscriptions

[App page](https://appshunter.io/ios/app/monoboost-cancel-subscriptions/id6740202306)

**Currently charting:** #79 Top Grossing · Utilities (US App Store)

This app helps you manage and cancel your recurring subscriptions. It provides a clear overview of all your active subscriptions, their costs, and renewal dates, empowering you to cut unnecessary expenses and make smarter financial choices.

**Highlights:** Subscription management, Cancel subscriptions, Reminder notifications, Expense categorization, Real-time subscription overview, Automatic subscription detection (premium)

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

**In-app purchases (13)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium Subscription | $6.99 | per 7 days |
| Weekly Premium with 70% off | $9.99 | per 7 days |
| Weekly Premium With 90% Off | $9.99 | per 7 days |
| Weekly Premium Subscription | $9.99 | per 7 days |
| Weekly Premium Subscription | $9.99 | per 7 days |
| Weekly Premium | $11.99 | per 7 days |
| Monthly Premium | $11.99 | per month |
| Monthly Premium Subscription | $19.99 | per month |
| Monthly Premium Subscription | $19.99 | per month |
| Quarterly Premium Subscription | $39.99 | per 3 months |
| Yearly Premium | $49.99 | per year |
| Yearly Premium Subscription | $99.99 | per year |
| Yearly Premium Subscription | $99.99 | per year |

**What reviewers like**

- 👍 Helpful for managing subscriptions

**What reviewers complain about**

- 🚫 Doesn't show all subscriptions
- 🚫 Doesn't support certain banks
- 💰 Unclear pricing
- 🚫 Doesn't work as advertised
- 🚫 Difficult to cancel subscription

**Reported bugs**

- Subscription tracking issues
- Bank connection problems

**Requested features**

- Improve subscription tracking
- Expand bank support
- Provide clear pricing information
- Improve cancellation process


## Frequently asked questions

### Is Smart Purifier free?

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

### Is MonoBoost Cancel Subscriptions free?

MonoBoost Cancel Subscriptions is free to download, with in-app purchases available.

### Which has better reviews, Smart Purifier or MonoBoost Cancel Subscriptions?

MonoBoost Cancel Subscriptions is rated higher. Smart Purifier averages 1.0 out of 5 from 1 ratings, while MonoBoost Cancel Subscriptions averages 4.4 from 5.4K ratings.

### Do Smart Purifier or MonoBoost Cancel Subscriptions have ads?

MonoBoost Cancel Subscriptions shows ads; Smart Purifier does not.

### Which is updated more often, Smart Purifier or MonoBoost Cancel Subscriptions?

Smart Purifier ships an update fortnightly, and MonoBoost Cancel Subscriptions every 4 days. Most recently, Smart Purifier was updated on June 4, 2026 and MonoBoost Cancel Subscriptions on September 28, 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.*