# 理念即印 vs E维护

The clearest difference is update cadence: E维护 at monthly against 理念即印's every 13 months. 理念即印's advantage is iOS requirement (9.3 vs 12.0). 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.

理念即印 ships an update every 13 months, E维护 monthly. The most recent releases landed on September 29, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | 理念即印 | E维护 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 13 months | **Monthly** |
| Size | 48 MB | 62 MB |
| Requires iOS | **9.3** | 12.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Varicut(Shanghai)Electronics Component Co.,Ltd](https://appshunter.io/developer/1353737555) | [鉴 刘](https://appshunter.io/developer/1420089432) |

## What reviewers say

### 理念即印

[App page](https://appshunter.io/ios/app/id1483429037)

**Features:** macOS Compatibility

**In-app purchases:** none


### E维护

[App page](https://appshunter.io/ios/app/e/id1518396915)

**In-app purchases:** none


## Frequently asked questions

### Is 理念即印 free?

理念即印 is free to download, with no in-app purchases.

### Is E维护 free?

E维护 is free to download, with no in-app purchases.

### Do 理念即印 or E维护 have ads?

Neither 理念即印 nor E维护 shows ads.

### Which is updated more often, 理念即印 or E维护?

理念即印 ships an update every 13 months, and E维护 monthly. Most recently, 理念即印 was updated on September 29, 2026 and E维护 on October 6, 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.*