# PenFlow vs 100ます計算ノート

The clearest difference is in-app purchases: PenFlow at none against 100ます計算ノート's 1. PenFlow also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. 100ます計算ノート sells 1 one-off in-app purchase. PenFlow asks for nothing beyond the download.

PenFlow ships an update every 10 days, 100ます計算ノート every 6 days. The most recent releases landed on September 20, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | PenFlow | 100ます計算ノート |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 10 days | **Every 6 days** |
| Size | 5 MB | 37 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [SANWA Inc.](https://appshunter.io/developer/1878028373) | [Yuki Taniguchi](https://appshunter.io/developer/1879248125) |

## What reviewers say

### PenFlow

[App page](https://appshunter.io/ios/app/penflow/id6761091973)

**Features:** macOS Compatibility

**In-app purchases:** none


### 100ます計算ノート

[App page](https://appshunter.io/ios/app/100/id6761297945)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 広告を削除する | $2.99 | one-time |


## Frequently asked questions

### Is PenFlow free?

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

### Is 100ます計算ノート free?

100ます計算ノート is free to download, with in-app purchases available.

### Do PenFlow or 100ます計算ノート have ads?

100ます計算ノート shows ads; PenFlow does not.

### Which is updated more often, PenFlow or 100ます計算ノート?

PenFlow ships an update every 10 days, and 100ます計算ノート every 6 days. Most recently, PenFlow was updated on September 20, 2026 and 100ます計算ノート on September 9, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*