# 务实 vs Standard Notation Calculator

The clearest difference is in-app purchases: Standard Notation Calculator at none against 务实's 4. 务实's advantage is update cadence (monthly vs every 9 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 务实 sells 4 one-off in-app purchases. Standard Notation Calculator asks for nothing beyond the download.

务实 ships an update monthly, Standard Notation Calculator every 9 months. The most recent releases landed on September 15, 2026 and May 16, 2026 respectively.

## The numbers

| Metric | 务实 | Standard Notation Calculator |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Monthly** | Every 9 months |
| Size | 32 MB | 28 MB |
| Requires iOS | **9.0** | 10.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [程欣 朱](https://appshunter.io/developer/1808327732) | [Ahmad Sattar](https://appshunter.io/developer/1458483953) |

## What reviewers say

### 务实

[App page](https://appshunter.io/ios/app/id1474765920)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 12务实币 | $1.99 | one-time |
| 25务实币 | $3.99 | one-time |
| 40务实币 | $5.99 | one-time |
| 50务实币 | $7.99 | one-time |


### Standard Notation Calculator

[App page](https://appshunter.io/ios/app/standard-notation-calculator/id1601032021)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 务实 free?

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

### Is Standard Notation Calculator free?

Standard Notation Calculator is free to download, with no in-app purchases.

### Do 务实 or Standard Notation Calculator have ads?

Neither 务实 nor Standard Notation Calculator shows ads.

### Which is updated more often, 务实 or Standard Notation Calculator?

务实 ships an update monthly, and Standard Notation Calculator every 9 months. Most recently, 务实 was updated on September 15, 2026 and Standard Notation Calculator on May 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.*