# EV互动 vs 记库存

The clearest difference is update cadence: 记库存 at every 2 months against EV互动's every 8 months. On price, ads, in-app purchases and device support there is nothing between them.

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

EV互动 ships an update every 8 months, 记库存 every 2 months. The most recent releases landed on October 10, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | EV互动 | 记库存 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/id6769459078/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 2 months** |
| Size | 86 MB | 88 MB |
| Requires iOS | **12.1** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [振宇 胡](https://appshunter.io/developer/1190222874) | [钰炜 李](https://appshunter.io/developer/1453187321) |

## What reviewers say

### EV互动

[App page](https://appshunter.io/ios/app/ev/id1571222303)

**Features:** macOS Compatibility

**In-app purchases:** none


### 记库存

[App page](https://appshunter.io/ios/app/id6769459078)

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

**In-app purchases:** none


## Frequently asked questions

### Is EV互动 free?

EV互动 is free to download, with no in-app purchases.

### Is 记库存 free?

记库存 is free to download, with no in-app purchases.

### Do EV互动 or 记库存 have ads?

Neither EV互动 nor 记库存 shows ads.

### Which is updated more often, EV互动 or 记库存?

EV互动 ships an update every 8 months, and 记库存 every 2 months. Most recently, EV互动 was updated on October 10, 2026 and 记库存 on October 8, 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.*