# Main Street vs equivalence principle

Main Street and equivalence principle are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

## The numbers

| Metric | Main Street | equivalence principle |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 days | — |
| Size | 19 MB | 0 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Joe Blough](https://appshunter.io/developer/327018371) | [Sungjun Kim](https://appshunter.io/developer/1602461985) |

## What reviewers say

### Main Street

[App page](https://appshunter.io/ios/app/main-street-mark/id1663213181)

**Features:** Vision Pro support

**In-app purchases:** none


### equivalence principle

[App page](https://appshunter.io/ios/app/equivalence-principle/id6670335382)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Main Street free?

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

### Is equivalence principle free?

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

### Do Main Street or equivalence principle have ads?

Neither Main Street nor equivalence principle shows ads.

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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.*