# Sheet1Calc vs RPN Deck

The clearest difference is in-app purchases: Sheet1Calc at none against RPN Deck's 1. RPN Deck's advantage is update cadence (every 11 days vs every 5 weeks) and iOS requirement (18.0 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. RPN Deck sells 1 one-off in-app purchase. Sheet1Calc asks for nothing beyond the download.

Sheet1Calc ships an update every 5 weeks, RPN Deck every 11 days. The most recent releases landed on November 5, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Sheet1Calc | RPN Deck |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 11 days** |
| Size | 8 MB | 2 MB |
| Requires iOS | 26.0 | **18.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Shunsuke Takanishi](https://appshunter.io/developer/1560104129) | [Edgard Leo Berendsen Mercado](https://appshunter.io/developer/1893604343) |

## What reviewers say

### Sheet1Calc

[App page](https://appshunter.io/ios/app/sheet1calc/id6759660154)

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

**In-app purchases:** none


### RPN Deck

[App page](https://appshunter.io/ios/app/rpn-deck/id6796490842)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Deck | $2.99 | one-time |


## Frequently asked questions

### Is Sheet1Calc free?

Sheet1Calc is free to download, with no in-app purchases.

### Is RPN Deck free?

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

### Do Sheet1Calc or RPN Deck have ads?

Neither Sheet1Calc nor RPN Deck shows ads.

### Which is updated more often, Sheet1Calc or RPN Deck?

Sheet1Calc ships an update every 5 weeks, and RPN Deck every 11 days. Most recently, Sheet1Calc was updated on November 5, 2026 and RPN Deck on November 6, 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.*