# TERRACE vs FLENS 先生アプリ

The clearest difference is update cadence: FLENS 先生アプリ at every 3 weeks against TERRACE's every 3 months. TERRACE's advantage is iOS requirement (12.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

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

TERRACE ships an update every 3 months, FLENS 先生アプリ every 3 weeks. The most recent releases landed on September 7, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | TERRACE | FLENS 先生アプリ |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 1.5 GB | 36 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SRJ](https://appshunter.io/developer/794881876) | [FLENS Inc.](https://appshunter.io/developer/1234201632) |

## What reviewers say

### TERRACE

[App page](https://appshunter.io/ios/app/terrace/id1491312678)

This app is a self-directed learning platform designed to enhance five key abilities: speed reading, comprehension, critical thinking, English proficiency, and expression. It offers personalized training modules for each skill, requiring a contract and registration to access. The platform is exclusively for registered users of contracted schools and businesses.

**Highlights:** Speed reading and comprehension training, Mathematical thinking development, Speed reading and listening English courses, New Japanese language courses, Real-world problem-solving lessons, Personalized learning paths

**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 TERRACE free?

TERRACE 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 TERRACE or FLENS 先生アプリ have ads?

Neither TERRACE nor FLENS 先生アプリ shows ads.

### Which is updated more often, TERRACE or FLENS 先生アプリ?

TERRACE ships an update every 3 months, and FLENS 先生アプリ every 3 weeks. Most recently, TERRACE was updated on September 7, 2026 and FLENS 先生アプリ on September 9, 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.*