# ochama PDA vs IotSong

The clearest difference is update cadence: IotSong at weekly against ochama PDA's monthly. ochama PDA's advantage is iOS requirement (12.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ochama PDA ships an update monthly, IotSong weekly. The most recent releases landed on October 14, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | ochama PDA | IotSong |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Weekly** |
| Size | 60 MB | 64 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [JINGDONG RETAIL-NETHERLANDS B.V.](https://appshunter.io/developer/1576293274) | [Rivol International LLC](https://appshunter.io/developer/1795393126) |

## What reviewers say

### ochama PDA

[App page](https://appshunter.io/ios/app/ochama-pda/id1672174066)

**In-app purchases:** none


### IotSong

[App page](https://appshunter.io/ios/app/iotsong/id6742019015)

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

**In-app purchases:** none


## Frequently asked questions

### Is ochama PDA free?

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

### Is IotSong free?

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

### Do ochama PDA or IotSong have ads?

Neither ochama PDA nor IotSong shows ads.

### Which is updated more often, ochama PDA or IotSong?

ochama PDA ships an update monthly, and IotSong weekly. Most recently, ochama PDA was updated on October 14, 2026 and IotSong on October 28, 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.*