# Contextual Instruments vs Bobby

The clearest difference is in-app purchases: Contextual Instruments at none against Bobby's 2. Bobby's advantage is update cadence (weekly vs every 2 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Bobby sells 2 in-app purchases, starting at $1.99 per month. Contextual Instruments asks for nothing beyond the download.

Contextual Instruments ships an update every 2 weeks, Bobby weekly. The most recent releases landed on October 17, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Contextual Instruments | Bobby |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Weekly** |
| Size | 52 MB | 52 MB |
| Requires iOS | **15** | 15.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [piwio](https://appshunter.io/developer/1717429036) | [Nebco](https://appshunter.io/developer/1874383474) |

## What reviewers say

### Contextual Instruments

[App page](https://appshunter.io/ios/app/contextual-instruments/id6748523337)

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

**In-app purchases:** none


### Bobby

[App page](https://appshunter.io/ios/app/bobby-to-do-list-and-planner/id6759606920)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Bobby Premium | $1.99 | per month |
| Bobby Premium+ | $3.99 | per month |


## Frequently asked questions

### Is Contextual Instruments free?

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

### Is Bobby free?

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

### Do Contextual Instruments or Bobby have ads?

Neither Contextual Instruments nor Bobby shows ads.

### Which is updated more often, Contextual Instruments or Bobby?

Contextual Instruments ships an update every 2 weeks, and Bobby weekly. Most recently, Contextual Instruments was updated on October 17, 2026 and Bobby on October 15, 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.*