# pdf转换器 vs Aro

The clearest difference is ads: pdf转换器 at none against Aro's shown. pdf转换器 also leads on update cadence (every 2 weeks vs every 2 months) and iOS requirement (11.0 vs 17.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. pdf转换器 sells 2 in-app purchases, starting at $2.99 per 3 months and Aro sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

pdf转换器 ships an update every 2 weeks, Aro every 2 months. The most recent releases landed on September 18, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | pdf转换器 | Aro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/aro-pomodoro-focus-timer/id6755880086/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 weeks** | Every 2 months |
| Monetization | — | Free with in-app purchases |
| Size | 46 MB | 103 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Shanghai Yuanlai Infomation Technology Co., Ltd.](https://appshunter.io/developer/958193889) | [Manuel Jose Rivas Farinas](https://appshunter.io/developer/1822594183) |

## What reviewers say

### pdf转换器

[App page](https://appshunter.io/ios/app/pdf/id1626680966)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 升级为会员 | $2.99 | per 3 months |
| 升级为超级会员 | $3.99 | per 3 months |


### Aro

[App page](https://appshunter.io/ios/app/aro-pomodoro-focus-timer/id6755880086)

This app uses the Pomodoro technique to help you focus on tasks. It offers calming environments and customizable timers to create a ritual for deep work. Track your progress and build streaks without guilt.

**Highlights:** Customizable Pomodoro timers, Calming focus spaces, Live Activities and Dynamic Island integration, Session organization with intentions and tags, Progress tracking and streaks, Adaptive Pomodoro, Ad-free experience with Pro

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Focus Rooms Pro Monthly | $1.99 | per month |
| Focus Rooms Pro Yearly | $9.99 | per year |
| Focus Rooms PRO Lifetime | $39.99 | one-time |


## Frequently asked questions

### Is pdf转换器 free?

pdf转换器 is free to download, with in-app purchases available.

### Is Aro free?

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

### Do pdf转换器 or Aro have ads?

Aro shows ads; pdf转换器 does not.

### Which is updated more often, pdf转换器 or Aro?

pdf转换器 ships an update every 2 weeks, and Aro every 2 months. Most recently, pdf转换器 was updated on September 18, 2026 and Aro on October 8, 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.*