# Days Until vs Opter Driver

Days Until and Opter Driver are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Days Until | Opter Driver |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 4 weeks |
| Size | 6 MB | 50 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Swapnil Chauhan](https://appshunter.io/developer/1281277595) | [Opter AB](https://appshunter.io/developer/576728344) |

## What reviewers say

### Days Until

[App page](https://appshunter.io/ios/app/days-until-track-days/id1534481981)

**Features:** macOS Compatibility

**In-app purchases:** none


### Opter Driver

[App page](https://appshunter.io/ios/app/opter-driver/id1565651654)

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

**In-app purchases:** none


## Frequently asked questions

### Is Days Until free?

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

### Is Opter Driver free?

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

### Do Days Until or Opter Driver have ads?

Neither Days Until nor Opter Driver shows ads.

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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.*