# Case.one vs Fast Open User

The clearest difference is update cadence: Case.one at every 3 months against Fast Open User's every 23 months. 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.

Case.one ships an update every 3 months, Fast Open User every 23 months. The most recent releases landed on October 4, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Case.one | Fast Open User |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/caseone/id1447902430/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 23 months |
| Monetization | Free | — |
| Size | 27 MB | 18 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Case One](https://appshunter.io/developer/1421758227) | [ELFOK TOO](https://appshunter.io/developer/1704972671) |

## What reviewers say

### Case.one

[App page](https://appshunter.io/ios/app/caseone/id1447902430)

Manage legal cases, schedule meetings, and record client interactions on the go. This app integrates seamlessly with your daily workflow, offering voice notes, time tracking, and calendar synchronization.

**Highlights:** Create cases, events, tasks, and notes, Record client meetings with one touch, Take voice notes and attach to case files, Track billable hours manually or with AI, Synchronize calendar with Google Calendar or iCal

**Features:** Vision Pro support

**In-app purchases:** none


### Fast Open User

[App page](https://appshunter.io/ios/app/fast-open-user/id6449151912)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Case.one free?

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

### Is Fast Open User free?

Fast Open User is free to download, with no in-app purchases.

### Do Case.one or Fast Open User have ads?

Neither Case.one nor Fast Open User shows ads.

### Which is updated more often, Case.one or Fast Open User?

Case.one ships an update every 3 months, and Fast Open User every 23 months. Most recently, Case.one was updated on October 4, 2026 and Fast Open User on October 2, 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.*