vpn vs DayDay
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
vpn
This app accelerates access to overseas educational resources, academic papers, and design websites. It offers high-speed lines and intelligent routing to bypass network congestion, making it easier to find research and creative materials.
- Accelerated access to global educational resources
- Fast search for academic papers
- Access to overseas design websites
- High-speed global network nodes
- Intelligent route optimization
- Stable and reliable connections
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还在为上海外网课和使用海外校园/学术网站卡顿而发愁吗？感觉找论文难、查设计素材难、快使用知匙教育加速，帮你一键加速上网、查海量权威论文、搜海外设计素材！ 知匙教育，专注海外教育加速 知匙教育，海外优质网络教育加速平台 高速线路：海量节点覆盖全球，优质加速线路 智能路由：实时优选传输路径，网络永不“塞车” 高可靠性：自动躲避拥塞，无单点故障，稳定可靠 【主要功能】 「海外高校教育资源加速访问」 一键加速全球各大教育资源，如MIT，Stanford,Yale等等，教育教学平台，如uDemy、eDX、Ted等 「学术论文资源加速访问」 支持国外权威学术论文海量搜索，帮你快速筛选出你想要的论文，如arXiv，ProQuest, PLOS等 「海外设计资源加速访问」 一键加速海外知名设计网站，帮你快速发现更多好设计！如VECTOR CREATOR、Pexel、Draw Kit等 注：知匙教育加速仅支持加速访问全球教育资源、海外设计网站素材资源，请遵守中国和服务器所在地的法律，严禁一切违法犯罪活动！ VIP自动订阅服务说明 1、订阅服务：知匙教育加速VIP连续包月； 2、订阅价格：知匙教育加速VIP连续包月价格为 35元/月； 3、付款：用户确认购买并付款后计入iTunes账户； 4、苹果iTunes账户会在到期前24小时内扣费，扣费成功后订阅周期顺延一个订阅周期； 5、如需取消订阅，请打开苹果手机“设置” --> 进入“iTunes Store 与 App Store”-->点击 “Apple ID”，选择"查看Apple ID"，进入"账户设置"页面，点击“订阅”，选择知匙教育加速 VIP 取消订阅。如未在订阅期结束的至少24小时前关闭订阅，此订阅将会自动续订 隐私协议：https://knowledge.91iread.com/privacy.html 服务条款：https://knowledge.91iread.com/terms.html
DayDay
This app assists with everyday information retrieval for various countries and regions. It also offers tools for calculating calorie consumption, converting pet ages, and analyzing number distributions, simplifying access to essential data.
- Country and region information lookup
- Calorie consumption calculation
- Pet age conversion
- Number distribution analysis
- Efficient information extraction
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A good helper in life. Contains relevant information for all countries and regions and can efficiently query information about different countries. It also helps in calculating calorie consumption, pet age calculation and number distribution. These features make it easier to extract the knowledge you need from fragmented, everyday information.
Screenshots
Verdict
The clearest difference is review sentiment: DayDay at 44% against vpn's 0%. DayDay also leads on rating (3.6 vs 3.0) and in-app purchases (none vs 3). vpn's advantage is ads (none vs shown) and iOS requirement (12.1 vs 16.4). On price 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. vpn sells 3 in-app purchases, starting at $5.49 per month. DayDay asks for nothing beyond the download.
DayDay holds the better App Store score, 3.6 against 3.0. That said, the two scores are not equally well evidenced: DayDay has 14 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 0% of vpn's written reviews are positive against 44% of DayDay's.
vpn ships an update every 3 weeks, DayDay every 3 days. The most recent releases landed on September 7, 2026 and September 21, 2026 respectively.
| Parameter | vpn | DayDay |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (2 ratings) | 3.6 (14 ratings) — better |
| Positive reviews | 0.0% of reviews | 44.4% of reviews — better |
| Number of ratings | 2 | 14 — better |
| Update frequency | Every 3 weeks | Every 3 days — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Ad-supported — better |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 12.1 — better | 16.4 |
| Further details — not scored | ||
| Size | 34 MB | 35 MB |
| Age rating | 4+ | 4+ |
| Developer | Youfang Network Technology Co., Ltd. | 辉 马 |
Customer experience
vpn
DayDay
In-app purchases
vpn
- 连续包月套餐$5.491 Month
- 月会员$5.99
- 年会员$49.99
DayDay
No in-app purchases
