# 嗯背单词JP vs FlowPack：开包集卡背单词

The clearest difference is review sentiment: FlowPack：开包集卡背单词 at 88% against 嗯背单词JP's 69%. 嗯背单词JP's advantage is update cadence (every 4 days vs every 2 weeks) and rating (4.8 vs 4.6). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. 嗯背单词JP sells 3 in-app purchases, starting at $2.99 per year and FlowPack：开包集卡背单词 sells 9 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

嗯背单词JP holds the better App Store score, 4.8 against 4.6. Both are backed by a comparable volume of ratings — 18 and 17 respectively. Written reviews complicate that: 69% of 嗯背单词JP's written reviews are positive against 88% of FlowPack：开包集卡背单词's, so the app with the better star average is not the one people write more warmly about.

嗯背单词JP ships an update every 4 days, FlowPack：开包集卡背单词 every 2 weeks. The most recent releases landed on October 13, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | 嗯背单词JP | FlowPack：开包集卡背单词 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (18 ratings)](https://appshunter.io/ios/app/jp/id6502523869/reviews)** | [4.6 (17 ratings)](https://appshunter.io/ios/app/flowpack/id6752347947/reviews) |
| Number of ratings | **18** | 17 |
| Positive reviews | 69.2% of reviews | **87.5% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 2 weeks |
| Monetization | Freemium | Freemium |
| Size | 771 MB | 742 MB |
| Requires iOS | 16 | **15** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [斌斌 沈](https://appshunter.io/developer/1509733863) | [超前 徐](https://appshunter.io/developer/1735936068) |

## What reviewers say

### 嗯背单词JP

[App page](https://appshunter.io/ios/app/jp/id6502523869)

This app uses the Leitner Box algorithm for spaced repetition to help you memorize Japanese vocabulary. It offers various learning modes, customizable definitions, and high-quality pronunciation.

**Highlights:** Leitner Box spaced repetition algorithm, iCloud backup and sync, High-quality TTS pronunciation, Three learning modes (quick, spelling, dictation), Editable definitions and examples, Word notes and built-in dictionary

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 赞助会员 | $2.99 | per year |
| 终身会员 | $4.99 | one-time |
| 终身会员 | $6.99 | one-time |


### FlowPack：开包集卡背单词

[App page](https://appshunter.io/ios/app/flowpack/id6752347947)

This app transforms English learning into an exciting experience, similar to opening surprise collectible packs. Discover new words, articles, art, and stories daily, making study engaging and fun. Unlock more features and an ad-free experience with a premium membership.

**Highlights:** Daily surprise card packs, Collectible word cards with pronunciation, 8000+ word vocabulary, Fun reading and art exploration, Gamified learning modes, Premium membership for enhanced features

**Features:** Vision Pro support

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Flow Pro（Monthly Membership） | $2.99 | per month |
| Flow Pro（Quarterly Membership) | $6.99 | per 3 months |
| Flow Pro (Annual - Welcome Offer) | $9.99 | per year |
| Flow Pro Annual | $14.99 | per year |
| Little Lightning Charge | $0.99 | one-time |
| Big Lightning Charge | $0.99 | one-time |
| Ultra Lightning Charge | $1.99 | one-time |
| Flow Pro (Lifetime - Welcome Offer) | $19.99 | one-time |
| Flow Pro（Lifetime） | $24.99 | one-time |


## Frequently asked questions

### Is 嗯背单词JP free?

嗯背单词JP is free to download, with in-app purchases available.

### Is FlowPack：开包集卡背单词 free?

FlowPack：开包集卡背单词 is free to download, with in-app purchases available.

### Which has better reviews, 嗯背单词JP or FlowPack：开包集卡背单词?

嗯背单词JP is rated higher. 嗯背单词JP averages 4.8 out of 5 from 18 ratings, while FlowPack：开包集卡背单词 averages 4.6 from 17 ratings.

### Do 嗯背单词JP or FlowPack：开包集卡背单词 have ads?

Neither 嗯背单词JP nor FlowPack：开包集卡背单词 shows ads.

### Which is updated more often, 嗯背单词JP or FlowPack：开包集卡背单词?

嗯背单词JP ships an update every 4 days, and FlowPack：开包集卡背单词 every 2 weeks. Most recently, 嗯背单词JP was updated on October 13, 2026 and FlowPack：开包集卡背单词 on October 12, 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.*