# FastSync vs iSpacekeeper

The clearest difference is in-app purchases: FastSync at none against iSpacekeeper's 3. iSpacekeeper's advantage is update cadence (every 4 days vs every 2 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. iSpacekeeper sells 3 in-app purchases, starting at $4.99 per 7 days. FastSync asks for nothing beyond the download.

FastSync ships an update every 2 weeks, iSpacekeeper every 4 days. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | FastSync | iSpacekeeper |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 4 days** |
| Size | 2 MB | 28 MB |
| Requires iOS | **15.0** | 16.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [LEADVISION MEDIA MANAGEMENT LIMITED](https://appshunter.io/developer/1749906380) | [元甲 陈](https://appshunter.io/developer/6784329174) |

## What reviewers say

### FastSync

[App page](https://appshunter.io/ios/app/fastsync-file-manager-and-docs/id6756871426)

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

**In-app purchases:** none


### 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 FastSync free?

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

### Is iSpacekeeper free?

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

### Do FastSync or iSpacekeeper have ads?

Neither FastSync nor iSpacekeeper shows ads.

### Which is updated more often, FastSync or iSpacekeeper?

FastSync ships an update every 2 weeks, and iSpacekeeper every 4 days. Most recently, FastSync was updated on October 30, 2026 and iSpacekeeper on October 28, 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.*