Java面试(Voids) vs Tester
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Java面试(Voids)
This app provides a comprehensive question bank for Java technical interviews, covering a wide range of topics. It aims to help users identify knowledge gaps and prepare effectively for interviews through extensive practice. The content includes detailed explanations and is designed to assist developers in mastering interview essentials.
- Extensive Java interview question bank
- Covers JVM, Spring, Microservices, Databases, and more
- Detailed explanations and visual aids
- Helps identify knowledge gaps
- Practice for technical interviews
Read full descriptionHide full description
技术面试在一定技巧之基础上更多的是八股，需要大量练习后才能脱口而出，融会贯通后才能将知识点/考点结合业务与产品自然输出。 Java整个体系知识非常丰富，无法面面俱到是正常的知识状态，此应用主要作用是查漏补缺，临时抱佛脚总比裸考强。 取名"Voids"来源于Java工程中的主函数`public static void main(String[] args)`，技术面在国内越来越八股化，工作大部分都是面对搜索引擎编程，只能说熟练应试也是技术/工作能力之一。 题库拥有5000+精选面试题，图文并茂，包括且不限于: Java、JVM、Spring、SpringMVC、SpringBoot、SpringCloud、SpringCloud Alibaba、微服务、MySQL、MyBatis、Redis、Kafka、RabbitMQ、Memcached、ElasticSearch、Dubbo、ZooKeeper、Linux、Docker等等
Tester
Test various APIs directly from your mobile device. Supports REST, GraphQL, WebSockets, and more, with advanced editors and request customization. Share requests easily and manage cookies and history.
- Test REST, GraphQL, WebSocket, SOAP, JSON RPC, XML, HTTP, HTTPS APIs
- Powerful GraphQL editor with query, mutation, subscription support
- WebSocket testing tool for WS and WSS connections
- Flexible request data encoding and transfer types
- Import requests from curl, links, or files (Swagger, OpenAPI, Postman)
- One-tap request sharing via deep link or cURL command
- Apple Watch app for sending requests from your wrist
Read full descriptionHide full description
The first mobile app to handle any developer task on the go. Main features: - REST, GraphQL, WebSocket, SOAP, JSON RPC, XML, HTTP, HTTPS, etc. - All types of HTTP requests: GET, POST, PUT, PATCH, DELETE, HEAD, OPTIONS, COPY, LINK, UNLINK, PURGE, LOCK, UNLOCK, PROPFIND, VIEW. - Powerful GraphQL editor with full-scale experience: body editor with Queries, Mutations, Subscriptions and syntax support; variables editor; documentation explorer; request settings and metadata. - WebSocket testing tool. Handles connection and message exchange via WS or WSS. - API calls with any kind of request data encoding and transfer type (query params, URLEncoded params, FormData, raw data, send files from device storage, cloud, remote server). - Settings. TLS can be skipped, redirects can be disabled, timeouts are adjustable. Weak SSL verification can be enabled and replaced with self-signed certificate. - Import request or collection by curl, link or file from your device. And naturally, there is any type of collection for you: Swagger, OpenAPI, Postman, YAML. - Need to share request in seconds? Deep link and cURL command supported. - Apple Watch app. Allows to send API requests directly from your wrist. - Integrations: Shortcuts, Widgets. Additional little things: - Autocomplete for most common headers keys. - Syntax highlighting; Auto formatting. - Optimized for viewing on any device screen. - Cookies. Collect, edit, create. - Request metrics. Measure request duration, response size, status code changing. - History of all request calls. - Request authorisation. Basic Auth with password and username. OAuth with header or query access token. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://tester.io/privacy-policy
Screenshots
Verdict
The clearest difference is monetization model: Tester at free against Java面试(Voids)'s free with in-app purchases. Tester also leads on ratings volume (574 vs 5) and update cadence (every 2 days vs every 10 days). Java面试(Voids)'s advantage is rating (5.0 vs 4.7). 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. Java面试(Voids) sells 1 one-off in-app purchase and Tester sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.
Java面试(Voids) holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Tester has 574 ratings behind it against 5, so its average is the more settled of the two. Written reviews complicate that: 71% of Java面试(Voids)'s written reviews are positive against 90% of Tester's, so the app with the better star average is not the one people write more warmly about.
Java面试(Voids) ships an update every 10 days, Tester every 2 days. The most recent releases landed on September 14, 2026 and September 25, 2026 respectively.
| Parameter | Java面试(Voids) | Tester |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (5 ratings) — better | 4.7 (574 ratings) |
| Positive reviews | 71.4% of reviews | 89.8% of reviews — better |
| Number of ratings | 5 | 574 — better |
| Update frequency | Every 10 days | Every 2 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod, Apple Watch — better |
| Requires iOS | 17.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 82 MB | 76 MB |
| Age rating | 4+ | 4+ |
| Developer | 雷 戴 | FJEDI |
Customer experience
Java面试(Voids)
Tester
Bugs and requests
Java面试(Voids)
Not enough reviews yet to summarise bugs or requests.
Tester
Reported bugs
3 issues- Deleting all saved requests after updates
- App launching to a black screen
- Shortcuts integration not working as expected
Requested features
5 requests- Add support for environment variables
- Implement folders/collections management
- Allow exporting/importing data as JSON
- Provide more Shortcuts actions
- Add ability to change app icon
In-app purchases
Java面试(Voids)
- 升级为Pro$0.99
Tester
- Tester Plus Monthly$4.991 Month
- Tester Plus Yearly$24.991 Year
- Tester Plus Lifetime$79.99
