# 番茄ToDo vs CAJ Converter

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.

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 24, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | 番茄ToDo | CAJ Converter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (4.8K ratings)](https://appshunter.io/ios/app/todo/id1242689729/reviews)** | — |
| Number of ratings | **4.8K** | — |
| Positive reviews | **89.1% of reviews** | 47.6% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 2 months |
| Monetization | Free with in-app purchases | Freemium |
| Size | 191 MB | 55 MB |
| Requires iOS | 15.3 | **12.0** |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shanghai Paitui Technology Co., Ltd.](https://appshunter.io/developer/1242689728) | [Meitian Trading](https://appshunter.io/developer/1549616114) |

## What reviewers say

### 番茄ToDo

[App page](https://appshunter.io/ios/app/todo/id1242689729)

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.

**Highlights:** 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

**Features:** Apple Watch app, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 番茄ToDo季度卡（3 个月） | $1.99 | one-time |
| 番茄ToDo季度卡（6个月） | $2.99 | one-time |
| 番茄ToDo季度卡（三年） | $8.99 | one-time |

**What reviewers like**

- 👍 Efficient and helpful app
- 🚀 Lightweight and easy to use
- 💡 Comprehensive features for productivity
- 🔒 No ads or distractions
- 🎨 Aesthetically pleasing design

**What reviewers complain about**

- 🐛 Occasional bugs and crashes
- 🔋 High battery consumption
- 🌐 Lack of English language support
- 🔒 Limited customization options

**Reported bugs**

- White screen issue when editing whitelist
- Inconsistent behavior of 'study mode' locking
- Countdown timer not always working as expected

**Requested features**

- 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

[App page](https://appshunter.io/ios/app/caj-converter/id1603045684)

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.

**Highlights:** Convert CAJ to PDF, Convert CAJ to Word, Text recognition for Word conversion, Preview before PDF export, Supports .caj, .nh, .kdh formats

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VIP月会员 | $2.99 | per month |
| VIP季会员 | $4.99 | per 3 months |
| VIP年会员 | $7.99 | per year |


## Frequently asked questions

### Is 番茄ToDo free?

番茄ToDo is free to download, with in-app purchases available.

### Is CAJ Converter free?

CAJ Converter is free to download, with in-app purchases available.

### Do 番茄ToDo or CAJ Converter have ads?

Neither 番茄ToDo nor CAJ Converter shows ads.

### Which is updated more often, 番茄ToDo or CAJ Converter?

番茄ToDo ships an update every 2 weeks, and CAJ Converter every 2 months. Most recently, 番茄ToDo was updated on October 24, 2026 and CAJ Converter on October 14, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*