# Interactive Robot vs Sound Doctrine Online

The clearest difference is update cadence: Interactive Robot at every 3 weeks against Sound Doctrine Online's every 16 months. Interactive Robot also leads on iOS requirement (7.1 vs 18.0). 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.

Interactive Robot ships an update every 3 weeks, Sound Doctrine Online every 16 months. The most recent releases landed on October 7, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Interactive Robot | Sound Doctrine Online |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (1 ratings)](https://appshunter.io/ios/app/sound-doctrine-online/id6443919279/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 16 months |
| Monetization | — | Free |
| Size | 40 MB | 32 MB |
| Requires iOS | **7.1** | 18.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 9+ |
| Developer | [Hunuo Network Technology Co. Ltd.](https://appshunter.io/developer/976006506) | [Joel Kingsley](https://appshunter.io/developer/1650576466) |

## What reviewers say

### Interactive Robot

[App page](https://appshunter.io/ios/app/interactive-robot/id1128661389)

**Features:** macOS Compatibility

**In-app purchases:** none


### Sound Doctrine Online

[App page](https://appshunter.io/ios/app/sound-doctrine-online/id6443919279)

Access non-charismatic, non-ecumenical Independent Fundamental Baptist (IFB) preaching and congregational singing from around the globe. This app provides documentaries, sermons, interviews, and shorts, making hard preaching accessible to everyone.

**Highlights:** IFB preaching streams, Congregational singing, Documentaries, Sermons, Interviews, Shorts

**In-app purchases:** none


## Frequently asked questions

### Is Interactive Robot free?

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

### Is Sound Doctrine Online free?

Sound Doctrine Online is free to download, with no in-app purchases.

### Do Interactive Robot or Sound Doctrine Online have ads?

Neither Interactive Robot nor Sound Doctrine Online shows ads.

### Which is updated more often, Interactive Robot or Sound Doctrine Online?

Interactive Robot ships an update every 3 weeks, and Sound Doctrine Online every 16 months. Most recently, Interactive Robot was updated on October 7, 2026 and Sound Doctrine Online on October 6, 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.*