# DataLink V3 vs Big Clock

The clearest difference is price: DataLink V3 at Free against Big Clock's $1.99. DataLink V3 also leads on iOS requirement (14.0 vs 17.0). Big Clock's advantage is update cadence (daily vs every 9 months). On ads, in-app purchases and device support there is nothing between them.

DataLink V3 is free to download; Big Clock costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

DataLink V3 ships an update every 9 months, Big Clock daily. The most recent releases landed on October 14, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | DataLink V3 | Big Clock |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/big-clock-overtime/id6813792770/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Daily** |
| Monetization | — | Paid |
| Size | 8 MB | 2 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Hobbywing Technology Co.,Ltd](https://appshunter.io/developer/1033124554) | [DEREK MATTHEW PERRY](https://appshunter.io/developer/6813792772) |

## What reviewers say

### DataLink V3

[App page](https://appshunter.io/ios/app/datalink-v3/id6752997274)

**Features:** macOS Compatibility

**In-app purchases:** none


### Big Clock

[App page](https://appshunter.io/ios/app/big-clock-overtime/id6813792770)

Track your overtime earnings in real-time with this simple hourly tracker. See your estimated earnings grow by the second, even on your lock screen. Ideal for anyone working by the hour who wants to visualize their extra income.

**Highlights:** Real-time earnings tracking, Customizable overtime multipliers, Lock Screen Live Activity, Big Mode for focused display, Pause and resume clock, Overtime history viewing

**In-app purchases:** none


## Frequently asked questions

### Is DataLink V3 free?

DataLink V3 is free to download, with no in-app purchases.

### Is Big Clock free?

Big Clock costs $1.99, with no in-app purchases.

### Do DataLink V3 or Big Clock have ads?

Neither DataLink V3 nor Big Clock shows ads.

### Which is updated more often, DataLink V3 or Big Clock?

DataLink V3 ships an update every 9 months, and Big Clock daily. Most recently, DataLink V3 was updated on October 14, 2026 and Big Clock on October 24, 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.*