# InstaLM vs OpenIndex

The clearest difference is in-app purchases: OpenIndex at none against InstaLM's 9. OpenIndex also leads on iOS requirement (13.4 vs 17.0). InstaLM's advantage is device support. On price there is nothing between them.

Both are free to download. InstaLM sells 9 in-app purchases, starting at $4.99 per 7 days. OpenIndex asks for nothing beyond the download.

## The numbers

| Metric | InstaLM | OpenIndex |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | — |
| Update frequency | Every 4 days | — |
| Size | 29 MB | 29 MB |
| Requires iOS | 17.0 | **13.4** |
| Devices | **iPhone, iPad, Mac** | — |
| Age rating | 4+ | 4+ |
| Developer | [旻 蔡](https://appshunter.io/developer/1454667188) | [Tito Costa](https://appshunter.io/developer/568927465) |

## What reviewers say

### InstaLM

[App page](https://appshunter.io/ios/app/instalm/id6504527345)

**Features:** Vision Pro support

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| InstaLM Plus (Weekly) | $4.99 | per 7 days |
| InstaLM Pro (Weekly) | $9.99 | per 7 days |
| InstaLM Plus (Monthly) | $19.99 | per month |
| InstaLM Pro (Monthly) | $39.99 | per month |
| InstaLM Plus (Annual) | $199.99 | per year |
| InstaLM Pro (Annual) | $399.99 | per year |
| InstaLM 2,500 Credits | $1.99 | one-time |
| InstaLM 6,250 Credits | $4.99 | one-time |
| InstaLM 12,500 Credits | $9.99 | one-time |


### OpenIndex

[App page](https://appshunter.io/ios/app/openindex-docs-scan-and-ai-chat/id6736521239)

**In-app purchases:** none


## Frequently asked questions

### Is InstaLM free?

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

### Is OpenIndex free?

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

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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.*