四级单词达人 vs Reverse Audio
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
四级单词达人
This app simplifies vocabulary learning for the CET-4 exam. It uses AI to recommend words and track your memory, creating personalized study plans. A daily word widget keeps you on track.
- AI-powered word recommendations
- Latest CET-4 vocabulary list
- Daily word widget
- Memory tracking
- Personalized study plans
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这是一款简易的背单词app，只需动动手指作出判断，背单词就象打卡一样简单，系统自动记录你的记忆情况，根据你的记忆情况作出学习计划。 主要功能： AI推荐智能出词 最新大学英语四级大纲词汇 widget小组件，每天一词开机即见 学习记录，单词掌握情况轻松查询和管理 本app无广告 每天一词小组件添加方法：长按手机桌面任意空白位置进入编辑状态，然后点击右上角加号，找到本app即可添加
Reverse Audio
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Discover the fun of reversing your voice, songs, or any sound with Reverse Audio — the ultimate app for party challenges, pranks, and viral trends! Say something, sing your favorite line, or import an audio file from your device — then play it backwards and hear how hilarious it sounds. Create funny clips, remix songs, or reveal hidden messages. Share your creations with friends and join the latest social media challenges taking over TikTok, Reels, and Shorts. Whether you’re hanging out with friends, recording a funny message, or making viral content, Reverse Audio makes every moment more entertaining. Features: • Record and flip any sound in seconds • Import audio files and apply the reverse effect instantly • Create funny reverse clips for TikTok, Reels, and Shorts • Remix songs and discover hidden messages • Share your creations with friends instantly • Join fun trends and challenges worldwide Turn your voice into laughter and creativity — download Reverse Audio now and start your next viral moment! Privacy Policy: https://ios2web.com/reverse-audio/privacy-policy/ Terms of Service: https://ios2web.com/reverse-audio/terms-of-service/
Screenshots
Verdict
The clearest difference is update cadence: Reverse Audio at every 3 weeks against 四级单词达人's every 3 months. 四级单词达人's advantage is iOS requirement (11.0 vs 17.6). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. 四级单词达人 sells 1 one-off in-app purchase and Reverse Audio sells 4 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.
四级单词达人 ships an update every 3 months, Reverse Audio every 3 weeks. The most recent releases landed on October 24, 2026 and October 21, 2026 respectively.
| Parameter | 四级单词达人 | Reverse Audio |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 11.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 11 MB | 47 MB |
| Age rating | 4+ | 4+ |
| Developer | 摇摇 章 | Ion Postolachi |
In-app purchases
四级单词达人
- 大学英语四级单词达人vip会员$0.99
Reverse Audio
- Weekly Premium$3.997 Days
- Monthly Premium$5.991 Month
- Yearly Premium3 Days trial$29.991 Year
- Lifetime Premium$44.99
