# BU Time Attendance vs C

The clearest difference is ads: BU Time Attendance at none against C's shown. BU Time Attendance also leads on iOS requirement (13.4 vs 15.1). On price, update cadence, 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.

BU Time Attendance ships an update every 2 months, C every 6 weeks. The most recent releases landed on September 20, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | BU Time Attendance | C |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 6 weeks** |
| Size | 19 MB | 44 MB |
| Requires iOS | **13.4** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Bangkok University](https://appshunter.io/developer/1249912677) | [C-Space, OOO](https://appshunter.io/developer/1599721519) |

## What reviewers say

### BU Time Attendance

[App page](https://appshunter.io/ios/app/bu-time-attendance/id1485825161)

**In-app purchases:** none


### C

[App page](https://appshunter.io/ios/app/c-space-network/id1627438817)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is BU Time Attendance free?

BU Time Attendance is free to download, with no in-app purchases.

### Is C free?

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

### Do BU Time Attendance or C have ads?

C shows ads; BU Time Attendance does not.

### Which is updated more often, BU Time Attendance or C?

BU Time Attendance ships an update every 2 months, and C every 6 weeks. Most recently, BU Time Attendance was updated on September 20, 2026 and C on September 9, 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.*