# Format Conversion格式转换 vs iDocs

The clearest difference is ads: Format Conversion格式转换 at none against iDocs's shown. Format Conversion格式转换 also leads on iOS requirement (15.6 vs 17.0). iDocs's advantage is update cadence (daily vs every 5 months). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Format Conversion格式转换 sells 4 in-app purchases, starting at $1.99 per 7 days and iDocs sells 2 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Format Conversion格式转换 ships an update every 5 months, iDocs daily. The most recent releases landed on October 16, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Format Conversion格式转换 | iDocs |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 5 months | **Daily** |
| Size | 29 MB | 36 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [彦 唐](https://appshunter.io/developer/1438972298) | [DNG SOFT COMPANY LIMITED](https://appshunter.io/developer/1757595500) |

## What reviewers say

### Format Conversion格式转换

[App page](https://appshunter.io/ios/app/format-conversion/id6744088667)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PRO Weekly Subscription | $1.99 | per 7 days |
| PRO Monthly Subscription | $3.99 | per month |
| PRO Yearly Subscription | $14.99 | per year |
| Permanent PRO | $24.99 | one-time |


### iDocs

[App page](https://appshunter.io/ios/app/idocs-convert-and-manage-files/id6751228523)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| iDocs PRO | $4.99 | per 7 days |
| iDocs PRO | $49.99 | per year |


## Frequently asked questions

### Is Format Conversion格式转换 free?

Format Conversion格式转换 is free to download, with in-app purchases available.

### Is iDocs free?

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

### Do Format Conversion格式转换 or iDocs have ads?

iDocs shows ads; Format Conversion格式转换 does not.

### Which is updated more often, Format Conversion格式转换 or iDocs?

Format Conversion格式转换 ships an update every 5 months, and iDocs daily. Most recently, Format Conversion格式转换 was updated on October 16, 2026 and iDocs on October 19, 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.*