# 真好算 vs SMSCat

The clearest difference is rating: 真好算 at 5.0 against SMSCat's 4.3. 真好算 also leads on review sentiment (67% vs 33%) and monetization model (free vs freemium). SMSCat's advantage is update cadence (every 8 days vs monthly) and ratings volume (30 vs 3). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. 真好算 sells 1 one-off in-app purchase and SMSCat sells 6 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

真好算 holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: SMSCat has 30 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 67% of 真好算's written reviews are positive against 33% of SMSCat's.

真好算 ships an update monthly, SMSCat every 8 days. The most recent releases landed on October 7, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | 真好算 | SMSCat |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/id6449284621/reviews)** | [4.3 (30 ratings)](https://appshunter.io/ios/app/smscat/id6503609135/reviews) |
| Number of ratings | 3 | **30** |
| Positive reviews | **66.7% of reviews** | 33.3% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 8 days** |
| Monetization | **Free** | Freemium |
| Size | 4 MB | 45 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [滚宁 林](https://appshunter.io/developer/1688525702) | [瑞青 邓](https://appshunter.io/developer/1749426631) |

## What reviewers say

### 真好算

[App page](https://appshunter.io/ios/app/id6449284621)

A user-friendly calculator app designed for everyday use, featuring a clean interface and one-handed operation. It offers quick access to history, unit conversions, currency exchange, and more, all without ads.

**Highlights:** One-handed operation, Recent calculation history display, Unit conversion tools, Currency exchange rates, Amount to Chinese characters, BMI calculator, Ad-free experience

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 真好算 PRO | $5.99 | one-time |


### SMSCat

[App page](https://appshunter.io/ios/app/smscat/id6503609135)

This app uses advanced AI to automatically identify and block spam text messages. It classifies incoming SMS into categories like normal, promotional, and transactional, offering real-time protection both online and offline. Users can customize filtering rules and block all messages with a single tap.

**Highlights:** AI intelligent interception, Automatic SMS classification, Real-time online protection, Offline intelligent filtering, Customizable filtering settings, Block all SMS, Privacy focused local filtering

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Member | $0.99 | per month |
| Quarterly Membership | $0.99 | per 3 months |
| Weekly Member | $0.99 | per 7 days |
| Annual Member | $2.99 | per year |
| Semi-annual membership | $2.99 | per 6 months |
| Lifetime Member | $9.99 | one-time |


## Frequently asked questions

### Is 真好算 free?

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

### Is SMSCat free?

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

### Which has better reviews, 真好算 or SMSCat?

真好算 is rated higher. 真好算 averages 5.0 out of 5 from 3 ratings, while SMSCat averages 4.3 from 30 ratings.

### Do 真好算 or SMSCat have ads?

Neither 真好算 nor SMSCat shows ads.

### Which is updated more often, 真好算 or SMSCat?

真好算 ships an update monthly, and SMSCat every 8 days. Most recently, 真好算 was updated on October 7, 2026 and SMSCat on October 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.*