# JuiceCalc vs WattaCar

The clearest difference is update cadence: JuiceCalc at every 3 weeks against WattaCar's every 3 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. JuiceCalc sells 3 one-off in-app purchases and WattaCar sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

JuiceCalc ships an update every 3 weeks, WattaCar every 3 months. The most recent releases landed on August 17, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | JuiceCalc | WattaCar |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 3 months |
| Size | 9 MB | 8 MB |
| Requires iOS | **17.0** | 18.4 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Raffael Buehlmann](https://appshunter.io/developer/1808179574) | [Laurent Peignault](https://appshunter.io/developer/1411627672) |

## What reviewers say

### JuiceCalc

[App page](https://appshunter.io/ios/app/juicecalc/id6744576334)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Coffee | $0.99 | one-time |
| Large Coffee | $2.99 | one-time |
| Piece of Cake | $6.99 | one-time |


### WattaCar

[App page](https://appshunter.io/ios/app/wattacar-charging-assistant/id6745976883)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Pro | $1.99 | per month |
| Annual Pro | $11.99 | per year |


## Frequently asked questions

### Is JuiceCalc free?

JuiceCalc is free to download, with in-app purchases available.

### Is WattaCar free?

WattaCar is free to download, with in-app purchases available.

### Do JuiceCalc or WattaCar have ads?

Neither JuiceCalc nor WattaCar shows ads.

### Which is updated more often, JuiceCalc or WattaCar?

JuiceCalc ships an update every 3 weeks, and WattaCar every 3 months. Most recently, JuiceCalc was updated on August 17, 2026 and WattaCar on September 22, 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.*