Comparison

FormatX vs 四级单词达人

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

FormatX

This app is a comprehensive tool for converting and editing video, audio, and image files. It offers features like compression, extraction, merging, and format adjustments for a wide range of media types.

Highlights
  • Video format conversion
  • Audio format conversion
  • Image format conversion
  • Audio extraction from video
  • Video compression
  • Video and audio editing
  • GIF creation from video
Features
Read full description

FormatX is an all-in-one format conversion tool that supports video, audio, and image format conversions, audio extraction, compression, cropping, merging, speed adjustment, rotation, aspect ratio adjustment, volume control, and more. Easily convert everything you want... FormatX has the following main features: Video Format Conversion: Supports conversion of videos in various formats with the freedom to customize settings like resolution, bitrate, frame rate, etc. Supported formats include mp4, mov, mkv, mpg, amv, ts, mpeg, m4v, wmv, asf, avi, vob, flv, etc. Audio Format Conversion: Professional audio format conversion settings to maintain the original audio quality. Supported formats include wav, mp3, aac, m4a, flac, etc. Image Format Conversion: Supports various image format conversions with the freedom to modify resolution and ratio. Supported formats include jpg, png, heic, jpeg, etc. Audio Extraction: Extracts various audio formats from videos with simple and convenient operations, maintaining the original sound sampling rate, bitrate, and supporting features like fade in and fade out. Video Compression: Supports limitless compression from 1% to 100%, compatible with multiple video formats. Video Editing: Features video cropping, merging, rotation, speed adjustment, volume control, and video denoising. Audio Editing: Supports audio cropping, merging, speed adjustment, volume control, and audio denoising. GIF Processing: Converts videos of various formats into high-definition GIFs, allowing personalized creation of desired GIFs. Subscription Auto-Renewal Instructions: -- Subscription Period: 1 week, 1 month, 1 year -- Subscription Price: Check iAP application information for details. -- Payment: Purchase confirmation and payment will be recorded in the iTunes account. -- Renewal: Apple iTunes account will be charged 24 hours before expiration, and the subscription period will be extended for one subscription cycle after successful payment. -- Cancel Renewal: To cancel the renewal, manually turn off the auto-renewal function in iTunes/Apple ID settings management at least 24 hours before the current subscription period is charged. -- Terms of Use: https://formatx-app.notion.site/formatx-app/Terms-of-use-37aaafcaef794d2d96c659595f243ac6 -- Privacy Policy: https://formatx-app.notion.site/formatx-app/Privacy-Policy-6920b3b28f944b60a977dc770b6c4c99

About

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.

Highlights
  • AI-powered word recommendations
  • Latest CET-4 vocabulary list
  • Daily word widget
  • Memory tracking
  • Personalized study plans
Features
Read full description

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

Screenshots

FormatX4 screens
四级单词达人4 screens

Verdict

The call

The clearest difference is rating: 四级单词达人 at 5.0 against FormatX's 4.6. 四级单词达人 also leads on iOS requirement (11.0 vs 17.0). FormatX's advantage is monetization model (free vs free with in-app purchases) and ratings volume (10 vs 1). On price, update cadence, ads and in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. FormatX sells 3 in-app purchases, starting at $0.29 per 7 days and 四级单词达人 sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

四级单词达人 holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: FormatX has 10 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

FormatX ships an update every 2 months, 四级单词达人 every 3 months. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

Scorecard4 real differences · 6 level
FormatX versus 四级单词达人: the parameters behind the verdict, then further details
ParameterFormatX四级单词达人
PriceFreeFree
Rating4.6 (10 ratings)5.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings10 — better1
Update frequencyEvery 2 months — betterEvery 3 months
AdsNoNo
In-app purchasesYesYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.011.0 — better
Further details — not scored
Size94 MB11 MB
Age rating4+4+
Developer阳 刘摇摇 章

Customer experience

FormatX

All ratings10 ratings
Positive90.0%
Neutral0.0%
Negative10.0%

四级单词达人

Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

3 purchases

FormatX

Subscriptions3
  • 1 Week$0.297 Days
  • 1 Month$0.991 Month
  • 1 Year3 Days trial$9.991 Year
1 purchases

四级单词达人

One-time1
  • 大学英语四级单词达人vip会员$0.99

Questions

Is FormatX free?
FormatX is free to download, with in-app purchases available.
Is 四级单词达人 free?
四级单词达人 is free to download, with in-app purchases available.
Which has better reviews, FormatX or 四级单词达人?
四级单词达人 is rated higher. FormatX averages 4.6 out of 5 from 10 ratings, while 四级单词达人 averages 5.0 from 1 ratings.
Do FormatX or 四级单词达人 have ads?
Neither FormatX nor 四级单词达人 shows ads.
Which is updated more often, FormatX or 四级单词达人?
FormatX ships an update every 2 months, and 四级单词达人 every 3 months. Most recently, FormatX was updated on November 3, 2026 and 四级单词达人 on November 4, 2026.

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