# SPRIX 英単語 vs FLENS 先生アプリ

The clearest difference is update cadence: FLENS 先生アプリ at every 3 weeks against SPRIX 英単語's every 2 months. FLENS 先生アプリ also leads on device support (3 vs 1). SPRIX 英単語's advantage is iOS requirement (13.0 vs 15.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

SPRIX 英単語 ships an update every 2 months, FLENS 先生アプリ every 3 weeks. The most recent releases landed on September 15, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | SPRIX 英単語 | FLENS 先生アプリ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Size | 185 MB | 36 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [SPRIX Inc.](https://appshunter.io/developer/625692678) | [FLENS Inc.](https://appshunter.io/developer/1234201632) |

## What reviewers say

### SPRIX 英単語

[App page](https://appshunter.io/ios/app/sprix/id1564383649)

**Features:** macOS Compatibility

**In-app purchases:** none


### FLENS 先生アプリ

[App page](https://appshunter.io/ios/app/flens/id6465133681)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SPRIX 英単語 free?

SPRIX 英単語 is free to download, with no in-app purchases.

### Is FLENS 先生アプリ free?

FLENS 先生アプリ is free to download, with no in-app purchases.

### Do SPRIX 英単語 or FLENS 先生アプリ have ads?

Neither SPRIX 英単語 nor FLENS 先生アプリ shows ads.

### Which is updated more often, SPRIX 英単語 or FLENS 先生アプリ?

SPRIX 英単語 ships an update every 2 months, and FLENS 先生アプリ every 3 weeks. Most recently, SPRIX 英単語 was updated on September 15, 2026 and FLENS 先生アプリ on October 4, 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.*