# iScore Contrée vs RF Calc JP

The clearest difference is update cadence: RF Calc JP at every 6 days against iScore Contrée's every 2 months. iScore Contrée's advantage is iOS requirement (14.0 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. iScore Contrée sells 1 one-off in-app purchase and RF Calc JP sells 1 in-app purchase, starting at $0.99 per year. Whichever you choose, the download price is not the number that matters.

iScore Contrée ships an update every 2 months, RF Calc JP every 6 days. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | iScore Contrée | RF Calc JP |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 days** |
| Size | 7 MB | 4 MB |
| Requires iOS | **14.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Olivier Sohier](https://appshunter.io/developer/1500627984) | [Hashimoto Yoshikazu](https://appshunter.io/developer/6790925881) |

## What reviewers say

### iScore Contrée

[App page](https://appshunter.io/ios/app/iscore-contree/id1500627985)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Version PRO | $0.99 | one-time |


### RF Calc JP

[App page](https://appshunter.io/ios/app/rf-calc-jp/id6815598081)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| RF Calc JP Pro (Yearly) | $0.99 | per year |


## Frequently asked questions

### Is iScore Contrée free?

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

### Is RF Calc JP free?

RF Calc JP is free to download, with in-app purchases available.

### Do iScore Contrée or RF Calc JP have ads?

Neither iScore Contrée nor RF Calc JP shows ads.

### Which is updated more often, iScore Contrée or RF Calc JP?

iScore Contrée ships an update every 2 months, and RF Calc JP every 6 days. Most recently, iScore Contrée was updated on October 27, 2026 and RF Calc JP 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.*