# TanB vs 進数ノック

The clearest difference is ads: 進数ノック at none against TanB's shown. 進数ノック also leads on update cadence (daily vs every 15 months). TanB's advantage is iOS requirement (15.0 vs 17.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. TanB sells 1 in-app purchase, starting at $2.99 per month and 進数ノック sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

TanB ships an update every 15 months, 進数ノック daily. The most recent releases landed on September 11, 2026 and September 2, 2026 respectively.

## The numbers

| Metric | TanB | 進数ノック |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 15 months | **Daily** |
| Monetization | Ad-supported | — |
| Size | 16 MB | 6 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Toru Hoshino](https://appshunter.io/developer/1679479070) | [Hikaru Hakata](https://appshunter.io/developer/6796209163) |

## What reviewers say

### TanB

[App page](https://appshunter.io/ios/app/tanb/id6473085040)

This app helps university students predict their credit scores based on various academic factors. It allows students to assess their likelihood of passing courses and identify areas for improvement, aiding in academic planning and effort allocation.

**Highlights:** Credit score prediction, Academic performance analysis, Course effort adjustment, Identify areas for improvement, Data-driven insights

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TanB Premium Monthly | $2.99 | per month |


### 進数ノック

[App page](https://appshunter.io/ios/app/radixdrill/id6796209161)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 広告非表示 | $1.99 | one-time |


## Frequently asked questions

### Is TanB free?

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

### Is 進数ノック free?

進数ノック is free to download, with in-app purchases available.

### Do TanB or 進数ノック have ads?

TanB shows ads; 進数ノック does not.

### Which is updated more often, TanB or 進数ノック?

TanB ships an update every 15 months, and 進数ノック daily. Most recently, TanB was updated on September 11, 2026 and 進数ノック on September 2, 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.*