# 科儀新知 vs 背單字、背英單、艾賓浩斯記憶曲線固有弱點消除

The clearest difference is in-app purchases: 科儀新知 at none against 背單字、背英單、艾賓浩斯記憶曲線固有弱點消除's 3. On price, review sentiment, update cadence and ads there is nothing between them.

Both are free to download. 背單字、背英單、艾賓浩斯記憶曲線固有弱點消除 sells 3 in-app purchases, starting at $3.99 per month. 科儀新知 asks for nothing beyond the download.

科儀新知 ships an update every 2 months, 背單字、背英單、艾賓浩斯記憶曲線固有弱點消除 every 6 weeks. The most recent releases landed on September 23, 2026 and July 27, 2026 respectively.

## The numbers

| Metric | 科儀新知 | 背單字、背英單、艾賓浩斯記憶曲線固有弱點消除 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 weeks** |
| Size | 48 MB | 57 MB |
| Requires iOS | **16.4** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [NARLabs](https://appshunter.io/developer/913923190) | [剑锋 刘](https://appshunter.io/developer/1725321361) |

## What reviewers say

### 科儀新知

[App page](https://appshunter.io/ios/app/id1509919040)

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

**In-app purchases:** none


### 背單字、背英單、艾賓浩斯記憶曲線固有弱點消除

[App page](https://appshunter.io/ios/app/id6480305754)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 包月 | $3.99 | per month |
| 包季 | $8.99 | per 3 months |
| 包年 | $22.99 | per year |


## Frequently asked questions

### Is 科儀新知 free?

科儀新知 is free to download, with no in-app purchases.

### Is 背單字、背英單、艾賓浩斯記憶曲線固有弱點消除 free?

背單字、背英單、艾賓浩斯記憶曲線固有弱點消除 is free to download, with in-app purchases available.

### Do 科儀新知 or 背單字、背英單、艾賓浩斯記憶曲線固有弱點消除 have ads?

Neither 科儀新知 nor 背單字、背英單、艾賓浩斯記憶曲線固有弱點消除 shows ads.

### Which is updated more often, 科儀新知 or 背單字、背英單、艾賓浩斯記憶曲線固有弱點消除?

科儀新知 ships an update every 2 months, and 背單字、背英單、艾賓浩斯記憶曲線固有弱點消除 every 6 weeks. Most recently, 科儀新知 was updated on September 23, 2026 and 背單字、背英單、艾賓浩斯記憶曲線固有弱點消除 on July 27, 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.*