番茄ToDo vs CAJ Converter
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
番茄ToDo
This app combines a minimalist Pomodoro timer with a "study mode" to help users focus and avoid distractions. It also includes habit tracking, reminders, and white noise to enhance productivity and self-discipline.
- Study mode to block distractions
- Pomodoro timer for focused work sessions
- Habit tracking with quantitative measurement
- Forced reminders to complete tasks
- High-definition white noise for focus
- Study room feature for shared focus sessions
- Detailed statistics and Apple Health integration
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极简清新强大的学霸模式&番茄工作法&习惯养成工具，保持专注，拒绝低头族。 ==学霸都在用的专注神器== 学霸模式：帮你暂时远离手机，抵制分心，专注当下。配合优美的白噪音在强大心流中高效学习工作 量化习惯管理：使用计时器量化你的每日习惯，完成一万小时计划很真的简单 强制提醒：一直不间断提醒到您完成所计划的待办为止，专治拖延症，不做手机控 高清白噪音：超高清的立体声白噪音资源，在舒缓优美的音乐中完成你的一万小时计划吧~ 统计数据：不仅有完善的数据统计模块，还可将时长计入 Apple Health 中「正念训练」 自习室：和朋友一起加入自习室，相伴提升自我 无广告，秒启动：坚持为所有用户提供无广告的清爽体验 功能完备：待办清单，番茄钟，白噪音，到点提醒，工作数据分析展示，个性化设置（背景音，背景色，番茄时间，休息时间）等等功能一应俱全，只为认真生活的你。 极简风：界面简洁美观，操作逻辑清晰简单，学习成本为0。优化大部分操作，以流畅的动画进行衔接，将操作过程最简化。 番茄工作法的关键是规划，追踪，记录，处理，以及可视化。您可以在此App中完成全部的番茄工作法流程，并随时查看记录，总结提高。
CAJ Converter
Easily convert Chinese academic journal files (CAJ, NH, KDH) into PDF or Word documents. Extract text for editing or create clear PDF versions for reading and sharing.
- Convert CAJ to PDF
- Convert CAJ to Word
- Text recognition for Word conversion
- Preview before PDF export
- Supports .caj, .nh, .kdh formats
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A converter that can convert Chinese academic journal full-text database (CAJ, NH, KDH) format to PDF or Word! Supported file formats: .caj, .nh, .kdh Convert CAJ to PDF: Convert to a clear PDF, you can preview the content and export the file after conversion; Convert CAJ to Word: Convert text recognition to Word to download and copy text; If you choose to purchase premium membership, payment will be charged to your iTunes account ,and your account will be charged for renewal within 24-hours prior to the end of the current period. Auto-renewal may be turned off at any time by going to your settings in the iTunes Store after purchase . Prices are in U.S. dollars, may vary in countries other than the U.S. and are subject to change without notice. No cancellation of the current subscription is allowed during the active subscription period. Our privacy policy : https://www.zkmeitian.com/page/privacy/cajconverter Our terms of use: https://www.zkmeitian.com/page/agreement/cajconverter
Screenshots
Verdict
The clearest difference is review sentiment: 番茄ToDo at 89% against CAJ Converter's 48%. 番茄ToDo also leads on update cadence (every 2 weeks vs every 2 months). CAJ Converter's advantage is iOS requirement (12.0 vs 15.3). On price, ads, in-app purchases and monetization model 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. 番茄ToDo sells 3 one-off in-app purchases and CAJ Converter sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.
番茄ToDo ships an update every 2 weeks, CAJ Converter every 2 months. The most recent releases landed on October 20, 2026 and October 14, 2026 respectively.
| Parameter | 番茄ToDo | CAJ Converter |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (4.8K ratings) — better | — |
| Positive reviews | 89.1% of reviews — better | 47.6% of reviews |
| Number of ratings | 4.8K — better | — |
| Update frequency | Every 2 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Freemium |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone, iPad, iPod |
| Requires iOS | 15.3 | 12.0 — better |
| Further details — not scored | ||
| Size | 191 MB | 55 MB |
| Age rating | 4+ | 4+ |
| Developer | Shanghai Paitui Technology Co., Ltd. | Meitian Trading |
Customer experience
番茄ToDo
CAJ Converter
Bugs and requests
番茄ToDo
Reported bugs
3 issues- White screen issue when editing whitelist
- Inconsistent behavior of 'study mode' locking
- Countdown timer not always working as expected
Requested features
5 requests- Add English language support
- Improve syncing across devices
- Introduce dark mode theme
- Allow more customization of timers and backgrounds
- Add multi-user functionality for shared study sessions
CAJ Converter
Not enough reviews yet to summarise bugs or requests.
In-app purchases
番茄ToDo
- 番茄ToDo季度卡（3 个月）$1.99
- 番茄ToDo季度卡（6个月）$2.99
- 番茄ToDo季度卡（三年）$8.99
CAJ Converter
- VIP月会员$2.991 Month
- VIP季会员$4.993 Months
- VIP年会员$7.991 Year
