# BigNum Calc vs 吟飞智能

The clearest difference is device support: 吟飞智能 at 3 against BigNum Calc's —. On price, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | BigNum Calc | 吟飞智能 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | — | No |
| Update frequency | — | Every 2 months |
| Size | 40 MB | 279 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | — | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Wei WEI](https://appshunter.io/developer/1483741762) | [Ringway Tech. (Jiangsu) Co., Ltd.](https://appshunter.io/developer/1025708282) |

## What reviewers say

### BigNum Calc

[App page](https://appshunter.io/ios/app/bignum-calc/id6444735525)

**In-app purchases:** none


### 吟飞智能

[App page](https://appshunter.io/ios/app/id6670162960)

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

**In-app purchases:** none


## Frequently asked questions

### Is BigNum Calc free?

BigNum Calc is free to download, with no in-app purchases.

### Is 吟飞智能 free?

吟飞智能 is free to download, with no in-app purchases.

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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.*