# API Key Manager vs Slipstream File Transfer

The clearest difference is in-app purchases: Slipstream File Transfer at none against API Key Manager's 1. Slipstream File Transfer also leads on update cadence (every 5 days vs every 2 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. API Key Manager sells 1 one-off in-app purchase. Slipstream File Transfer asks for nothing beyond the download.

API Key Manager ships an update every 2 weeks, Slipstream File Transfer every 5 days. Both last shipped on November 13, 2026.

## The numbers

| Metric | API Key Manager | Slipstream File Transfer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 5 days** |
| Size | 6 MB | 3 MB |
| Requires iOS | 17 | 17.0 |
| Devices | iPhone, iPad, Mac | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Amit Rathiesh](https://appshunter.io/developer/1883427775) | [Seo Joon Jeon](https://appshunter.io/developer/1886332448) |

## What reviewers say

### API Key Manager

[App page](https://appshunter.io/ios/app/api-key-manager/id6760243276)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| iCloud Sync | $4.99 | one-time |


### Slipstream File Transfer

[App page](https://appshunter.io/ios/app/slipstream-file-transfer/id6816633094)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is API Key Manager free?

API Key Manager is free to download, with in-app purchases available.

### Is Slipstream File Transfer free?

Slipstream File Transfer is free to download, with no in-app purchases.

### Do API Key Manager or Slipstream File Transfer have ads?

Neither API Key Manager nor Slipstream File Transfer shows ads.

### Which is updated more often, API Key Manager or Slipstream File Transfer?

API Key Manager ships an update every 2 weeks, and Slipstream File Transfer every 5 days. Most recently, API Key Manager was updated on November 13, 2026 and Slipstream File Transfer on November 13, 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.*