# IBM Aspera vs Retime Calc

The clearest difference is price: IBM Aspera at Free against Retime Calc's $2.99. IBM Aspera also leads on device support (3 vs 1) and iOS requirement (15.1 vs 17.6). On update cadence, ads and in-app purchases there is nothing between them.

IBM Aspera is free to download; Retime Calc costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

IBM Aspera ships an update every 2 months, Retime Calc every 6 weeks. The most recent releases landed on October 24, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | IBM Aspera | Retime Calc |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | **[3.7 (22 ratings)](https://appshunter.io/ios/app/ibm-aspera/id1612281171/reviews)** | — |
| Number of ratings | **22** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 weeks** |
| Monetization | Free | — |
| Size | 54 MB | 1 MB |
| Requires iOS | **15.1** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [IBM](https://appshunter.io/developer/367353856) | [Warren Hickman](https://appshunter.io/developer/1896772926) |

## What reviewers say

### IBM Aspera

[App page](https://appshunter.io/ios/app/ibm-aspera/id1612281171)

Facilitates rapid file transfers to and from your IBM Aspera server. Link your server account to upload, download, and share files seamlessly from your mobile device, mirroring web browser capabilities.

**Highlights:** Fast FASP file transfers, Link server account, Upload, download, and share files, Mobile and web browser parity, Supports multiple IBM Aspera server types

**In-app purchases:** none


### Retime Calc

[App page](https://appshunter.io/ios/app/retime-calc/id6771155236)

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

**In-app purchases:** none


## Frequently asked questions

### Is IBM Aspera free?

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

### Is Retime Calc free?

Retime Calc costs $2.99, with no in-app purchases.

### Do IBM Aspera or Retime Calc have ads?

Neither IBM Aspera nor Retime Calc shows ads.

### Which is updated more often, IBM Aspera or Retime Calc?

IBM Aspera ships an update every 2 months, and Retime Calc every 6 weeks. Most recently, IBM Aspera was updated on October 24, 2026 and Retime Calc on September 23, 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.*