# PDF翻译 vs iSpacekeeper

The clearest difference is device support: PDF翻译 at 3 against iSpacekeeper's 1. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. PDF翻译 sells 3 in-app purchases, starting at $7.99 per month and iSpacekeeper sells 3 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

PDF翻译 ships an update every 3 days, iSpacekeeper every 4 days. The most recent releases landed on October 30, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | PDF翻译 | iSpacekeeper |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/pdf/id6755518596/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 4 days |
| Monetization | Freemium | — |
| Size | 11 MB | 28 MB |
| Requires iOS | **15.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Tianjin Junray Technology Co., Ltd.](https://appshunter.io/developer/1792139982) | [元甲 陈](https://appshunter.io/developer/6784329174) |

## What reviewers say

### PDF翻译

[App page](https://appshunter.io/ios/app/pdf/id6755518596)

Translate PDFs while preserving original formatting. Get a standalone translated document or a bilingual side-by-side version. Handles complex layouts, formulas, and images, with batch processing for large files.

**Highlights:** Standalone translated PDF output, Bilingual side-by-side PDF, Preserves original layout, formulas, tables, Batch and large file translation, Image and scanned document translation, Background processing with resume

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 连续包月 | $7.99 | per month |
| 单次翻译 | $0.99 | one-time |
| 永久会员 | $39.99 | one-time |


### iSpacekeeper

[App page](https://appshunter.io/ios/app/ispacekeeper-space-manager/id6784493687)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| iSpaceKeeper-week | $4.99 | per 7 days |
| iSpaceKeeper. | $9.99 | per month |
| iSpacekeeper. | $19.99 | per 3 months |


## Frequently asked questions

### Is PDF翻译 free?

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

### Is iSpacekeeper free?

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

### Do PDF翻译 or iSpacekeeper have ads?

Neither PDF翻译 nor iSpacekeeper shows ads.

### Which is updated more often, PDF翻译 or iSpacekeeper?

PDF翻译 ships an update every 3 days, and iSpacekeeper every 4 days. Most recently, PDF翻译 was updated on October 30, 2026 and iSpacekeeper on November 10, 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.*