# Mainframe Technical Exchange vs StartupInvest

The clearest difference is in-app purchases: Mainframe Technical Exchange at none against StartupInvest's 5. StartupInvest's advantage is update cadence (every 5 days vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. StartupInvest sells 5 in-app purchases, starting at $19.99 per month. Mainframe Technical Exchange asks for nothing beyond the download.

Mainframe Technical Exchange ships an update every 2 months, StartupInvest every 5 days. The most recent releases landed on October 25, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Mainframe Technical Exchange | StartupInvest |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 days** |
| Size | 29 MB | 70 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Broadcom Inc](https://appshunter.io/developer/1497585038) | [Ameno Teknoloji Limited Sirketi](https://appshunter.io/developer/1661006646) |

## What reviewers say

### Mainframe Technical Exchange

[App page](https://appshunter.io/ios/app/mainframe-technical-exchange/id6761268342)

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

**In-app purchases:** none


### StartupInvest

[App page](https://appshunter.io/ios/app/startupinvest/id6787413138)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| StartupInvest | $19.99 | per month |
| StartupInvest | $129.99 | per month |
| Pro Yearly | $171.99 | per year |
| StartupInvest | $749.99 | per year |
| Boost 7 Days | $29.99 | one-time |


## Frequently asked questions

### Is Mainframe Technical Exchange free?

Mainframe Technical Exchange is free to download, with no in-app purchases.

### Is StartupInvest free?

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

### Do Mainframe Technical Exchange or StartupInvest have ads?

Neither Mainframe Technical Exchange nor StartupInvest shows ads.

### Which is updated more often, Mainframe Technical Exchange or StartupInvest?

Mainframe Technical Exchange ships an update every 2 months, and StartupInvest every 5 days. Most recently, Mainframe Technical Exchange was updated on October 25, 2026 and StartupInvest on October 14, 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.*