# Tacam vs PV Doc

The clearest difference is in-app purchases: Tacam at none against PV Doc's 4. Tacam also leads on iOS requirement (13.0 vs 16.0). PV Doc's advantage is update cadence (every 5 days vs every 21 months). On price, ads and device support there is nothing between them.

Both are free to download. PV Doc sells 4 one-off in-app purchases. Tacam asks for nothing beyond the download.

Tacam ships an update every 21 months, PV Doc every 5 days. The most recent releases landed on September 15, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Tacam | PV Doc |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 21 months | **Every 5 days** |
| Size | 36 MB | 13 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [芳 周](https://appshunter.io/developer/1673248913) | [铭 陈](https://appshunter.io/developer/1794005085) |

## What reviewers say

### Tacam

[App page](https://appshunter.io/ios/app/tacam/id6445834585)

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

**In-app purchases:** none


### PV Doc

[App page](https://appshunter.io/ios/app/pv-doc/id6746977234)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 10个泡泡 | $0.99 | one-time |
| 70个泡泡 | $6.99 | one-time |
| 150个泡泡 | $14.99 | one-time |
| 1000个泡泡 | $69.99 | one-time |


## Frequently asked questions

### Is Tacam free?

Tacam is free to download, with no in-app purchases.

### Is PV Doc free?

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

### Do Tacam or PV Doc have ads?

Neither Tacam nor PV Doc shows ads.

### Which is updated more often, Tacam or PV Doc?

Tacam ships an update every 21 months, and PV Doc every 5 days. Most recently, Tacam was updated on September 15, 2026 and PV Doc on September 10, 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.*