# 単位計算機 vs NovaFlow Note

The clearest difference is in-app purchases: 単位計算機 at none against NovaFlow Note's 4. NovaFlow Note's advantage is ads (none vs shown) and update cadence (every 13 months vs every 27 months). On price and iOS requirement there is nothing between them.

Both are free to download. NovaFlow Note sells 4 in-app purchases, starting at $0.99 per month. 単位計算機 asks for nothing beyond the download.

単位計算機 ships an update every 27 months, NovaFlow Note every 13 months. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | 単位計算機 | NovaFlow Note |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.7 (6 ratings)](https://appshunter.io/ios/app/id993194260/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 27 months | **Every 13 months** |
| Size | 8 MB | 136 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Seiji Nagano](https://appshunter.io/developer/689628441) | [海瑞 束](https://appshunter.io/developer/1618207642) |

## What reviewers say

### 単位計算機

[App page](https://appshunter.io/ios/app/id993194260)

**Features:** macOS Compatibility

**In-app purchases:** none


### NovaFlow Note

[App page](https://appshunter.io/ios/app/novaflow-note/id6478515570)

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 连续包月 | $0.99 | per month |
| 连续包季 | $2.99 | per 3 months |
| 连续包年 | $9.99 | per year |
| 专业版 | $12.99 | one-time |


## Frequently asked questions

### Is 単位計算機 free?

単位計算機 is free to download, with no in-app purchases.

### Is NovaFlow Note free?

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

### Do 単位計算機 or NovaFlow Note have ads?

単位計算機 shows ads; NovaFlow Note does not.

### Which is updated more often, 単位計算機 or NovaFlow Note?

単位計算機 ships an update every 27 months, and NovaFlow Note every 13 months. Most recently, 単位計算機 was updated on October 29, 2026 and NovaFlow Note 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.*