# KnowThyHistory vs U.S. Constitution Reader

The clearest difference is price: KnowThyHistory at Free against U.S. Constitution Reader's $0.99. KnowThyHistory also leads on iOS requirement (14 vs 16.6). U.S. Constitution Reader's advantage is in-app purchases (none vs 6) and update cadence (fortnightly vs every 22 months). On ads and device support there is nothing between them.

KnowThyHistory is free to download; U.S. Constitution Reader costs $0.99 up front. KnowThyHistory sells 5 one-off in-app purchases. U.S. Constitution Reader asks for nothing beyond the download.

KnowThyHistory ships an update every 22 months, U.S. Constitution Reader fortnightly. The most recent releases landed on September 9, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | KnowThyHistory | U.S. Constitution Reader |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 22 months | **Fortnightly** |
| Size | 42 MB | 4 MB |
| Requires iOS | **14** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Robert Briggs](https://appshunter.io/developer/1252199859) | [Craig Miller](https://appshunter.io/developer/1818444319) |

## What reviewers say

### KnowThyHistory

[App page](https://appshunter.io/ios/app/knowthyhistory/id1252199860)

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basic Plan | $8.99 | one-time |
| Unlimited | $14.99 | one-time |
| Unlimited Plan | $14.99 | one-time |
| Premium | $45.99 | one-time |
| Premium Plan | $45.99 | one-time |


### U.S. Constitution Reader

[App page](https://appshunter.io/ios/app/us-constitution-reader/id6746772004)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is KnowThyHistory free?

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

### Is U.S. Constitution Reader free?

U.S. Constitution Reader costs $0.99, with no in-app purchases.

### Do KnowThyHistory or U.S. Constitution Reader have ads?

Neither KnowThyHistory nor U.S. Constitution Reader shows ads.

### Which is updated more often, KnowThyHistory or U.S. Constitution Reader?

KnowThyHistory ships an update every 22 months, and U.S. Constitution Reader fortnightly. Most recently, KnowThyHistory was updated on September 9, 2026 and U.S. Constitution Reader on September 8, 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.*