# HeadUp Display car vs Calc ± Smart Widgets

The clearest difference is update cadence: Calc ± Smart Widgets at daily against HeadUp Display car's every 3 months. HeadUp Display car's advantage is iOS requirement (14.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. HeadUp Display car sells 3 one-off in-app purchases and Calc ± Smart Widgets sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

HeadUp Display car ships an update every 3 months, Calc ± Smart Widgets daily. The most recent releases landed on October 26, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | HeadUp Display car | Calc ± Smart Widgets |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (202 ratings)](https://appshunter.io/ios/app/headup-display-car/id1475472677/reviews)** | — |
| Number of ratings | **202** | — |
| Positive reviews | 28.6% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Daily** |
| Monetization | Free with in-app purchases | — |
| Size | 12 MB | 55 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | +4 |
| Developer | [Nikaan Nikzad](https://appshunter.io/developer/1465623388) | [HKinfoway Technologies](https://appshunter.io/developer/1498599856) |

## What reviewers say

### HeadUp Display car

[App page](https://appshunter.io/ios/app/headup-display-car/id1475472677)

This app projects navigation and driving information onto your car's windshield. Enhance your night driving experience with speed, clock, weather, and music details displayed directly in your line of sight.

**Highlights:** Windshield projection, Navigation display, Speedometer, Clock, Weather temperature, Now playing song info

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Song Title Display | $1.99 | one-time |
| Cruise Control | $1.99 | one-time |
| RemoveADS | $7.99 | one-time |


### Calc ± Smart Widgets

[App page](https://appshunter.io/ios/app/calc-smart-widgets/id6745335333)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Calc ± Pro Monthly | $1.99 | per month |
| Calc ± Pro Yearly | $12.99 | per year |


## Frequently asked questions

### Is HeadUp Display car free?

HeadUp Display car is free to download, with in-app purchases available.

### Is Calc ± Smart Widgets free?

Calc ± Smart Widgets is free to download, with in-app purchases available.

### Do HeadUp Display car or Calc ± Smart Widgets have ads?

Neither HeadUp Display car nor Calc ± Smart Widgets shows ads.

### Which is updated more often, HeadUp Display car or Calc ± Smart Widgets?

HeadUp Display car ships an update every 3 months, and Calc ± Smart Widgets daily. Most recently, HeadUp Display car was updated on October 26, 2026 and Calc ± Smart Widgets on October 30, 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.*