视频格式转换工厂 vs WillStone
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
视频格式转换工厂
This app is a versatile video and audio converter and file manager. It supports conversion between numerous common formats, allows for audio extraction from videos, and offers audio editing features like trimming and merging.
- Video format conversion
- Extract audio from video
- Video mute function
- Audio format conversion
- Audio trimming
- Audio merging
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本APP是一个万能的视频、音频格式转换器和文件管理器,支持常见的各种格式之间转换。 - 视频格式转换 (mp4、mov、avi、wmv、m4v、flv、ts、mkv、asf、3gp、3g2、mpeg等) - 视频提取音频 (mp3、wav、aac、flac、m4a、ogg、m4r、ac3、wma、amr、aiff、caf、opus、mp2等) - 视频消音 - 音频格式转换 - 音频裁剪 - 音频合并
WillStone
This app helps you reduce phone usage by exchanging entertainment time for focused activities. Earn extra screen time by engaging with learning apps, exercising, or meditating, and build healthy habits progressively.
- Time exchange system for entertainment apps
- Earn screen time through focused activities
- Track and reward learning app usage
- Focus Mode for uninterrupted study
- Rewards for early bedtime and exercise
- Progressive reduction of phone usage
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Have you ever felt this way: "I spend too much time on social media, mindlessly scrolling through my phone" "I want to limit my phone usage, but I keep removing the limits after apps get locked" "Why can't I control myself?" "How did it get to 2 AM when I was just browsing for a bit..." WillStone is an app designed to help you gradually reduce phone usage. Instead of implementing strict daily screen time limits like other digital wellbeing apps, we've designed a unique time exchange system: Entertainment apps have limited usage time, but you can earn more screen time through focused activities and positive apps (such as learning, exercising, walking, meditation, building habits, early bedtime, etc.). We help you put down your phone progressively while building healthy habits! 【Design Philosophy】 - Immediate satisfaction drives motivation: A 1898 study by Thorndike showed that behaviors followed by satisfying consequences tend to be repeated, while those leading to unpleasant outcomes are less likely to recur. James Clear's "Atomic Habits" also mentions the four-step habit model—cue, craving, response, and reward. - Cold turkey approaches are hard to maintain: We've tried many screen control apps like Opal, ClearSpace and Apple Screen Time. Often, these get uninstalled after 3 days—just like quitting any addictive substance, going cold turkey rarely works. - The key to painlessly building good habits is: balancing desires with personal growth. 【How It Works】 - First, set up two categories of apps: - Apps you want to limit, such as Instagram, Twitter, TikTok, shopping apps, etc. We'll call these "entertainment apps." - Apps that help you grow, like reading apps, Duolingo, vocabulary builders, etc. After setup, grant WillStone screen time access permissions to begin. - Initially, you get 10 minutes daily for entertainment apps: Once you exceed this, a full-screen notification appears with no "remind me later" option. - Want more entertainment time? Use positive apps to earn additional screen time. Read books, learn vocabulary, and you can continue browsing. You can also earn time by walking or exercising. 【Use Cases】 We offer multiple ways to earn time: - Focus Mode: For exam prep, vacation study, evening reading/drawing—use our offline timer. During focus sessions, only selected apps remain accessible, helping you concentrate. Earn entertainment time as a reward. - Reading, Vocabulary, Language Learning: Add learning apps to your positive apps list—we'll automatically track usage and reward proportional entertainment time. - Early Bedtime: WillStone reminds you when it's bedtime and locks entertainment apps. Maintaining healthy sleep patterns earns bonus entertainment minutes the next day, encouraging your brain to embrace better sleep habits. - Exercise and Walking: WillStone automatically tracks your activity duration (via Apple Health) and rewards entertainment time proportionally. Meditation counts too! - Daily Habits: Whether it's drinking water, post-work shower, neck exercises, or rehabilitation—customize your habits with reminders and goals. Complete daily tasks to earn entertainment time, making healthy lifestyle changes effortless. 【Features】 - Exchange System: Convert positive app usage, early bedtime, habits, exercise, meditation, walking into entertainment app time - Custom Exchange Rates: Adjust difficulty levels and conversion ratios for gradual progress - Widgets: Display available time and quick-start focus timer on home screen - Analytics: Track your time balance and app usage distribution in "Performance" and "Data" sections Have other habits you'd like to build? Contact us and let us know! - 【Contact】: contact@2.5lab.app - 【App Membership/Annual/Monthly Service Agreement】: https://post.jellow.club/willstone-payment/ - 【Privacy Policy】: https://post.jellow.club/willstone-privacy/
Screenshots
Verdict
The clearest difference is ads: WillStone at none against 视频格式转换工厂's shown. WillStone also leads on ratings volume (211 vs 46). 视频格式转换工厂's advantage is update cadence (daily vs every 6 days) and rating (5.0 vs 4.6). On price, in-app purchases, monetization model 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. 视频格式转换工厂 sells 1 one-off in-app purchase and WillStone sells 6 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.
视频格式转换工厂 holds the better App Store score, 5.0 against 4.6. Both are backed by a comparable volume of ratings — 46 and 211 respectively. Written reviews point the same way: 100% of 视频格式转换工厂's written reviews are positive against 75% of WillStone's.
视频格式转换工厂 ships an update daily, WillStone every 6 days. Both last shipped on October 30, 2026.
| Parameter | 视频格式转换工厂 | WillStone |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (46 ratings) — better | 4.6 (211 ratings) |
| Positive reviews | 100.0% of reviews — better | 75.0% of reviews |
| Number of ratings | 46 | 211 — better |
| Update frequency | Daily — better | Every 6 days |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Freemium |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 14.0 — better | 16 |
| Further details — not scored | ||
| Size | 37 MB | 195 MB |
| Age rating | 4+ | 4+ |
| Developer | 锡和 李 | 宁波群鸟科技有限公司 |
Customer experience
视频格式转换工厂
WillStone
In-app purchases
视频格式转换工厂
- 解锁PRO$3.99
WillStone
- WillStone Pro For A Month$2.991 Month
- WillStone Pro For A Quater$7.993 Months
- WillStone Pro For A Year$14.991 Year
- WillStone Discount Pro$17.99
- WillStone Discount Pro$19.99
- WillStone Pro Lifetime$49.99









