# KnowThyHistory vs Dissertation Defense Coach

The clearest difference is price: KnowThyHistory at Free against Dissertation Defense Coach's $6.99. KnowThyHistory also leads on iOS requirement (14 vs 17.6). Dissertation Defense Coach's advantage is in-app purchases (none vs 6) and update cadence (weekly vs every 22 months). On ads and device support there is nothing between them.

KnowThyHistory is free to download; Dissertation Defense Coach costs $6.99 up front. KnowThyHistory sells 5 one-off in-app purchases. Dissertation Defense Coach asks for nothing beyond the download.

KnowThyHistory ships an update every 22 months, Dissertation Defense Coach weekly. The most recent releases landed on October 11, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | KnowThyHistory | Dissertation Defense Coach |
| --- | --- | --- |
| Price | **Free** | $6.99 |
| Rating | — | **[4.2 (30 ratings)](https://appshunter.io/ios/app/dissertation-defense-coach/id1462924075/reviews)** |
| Number of ratings | — | **30** |
| Positive reviews | — | 73.3% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 22 months | **Weekly** |
| Monetization | — | Paid |
| Size | 42 MB | 6 MB |
| Requires iOS | **14** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Robert Briggs](https://appshunter.io/developer/1252199859) | [Triumphant Heart International, Inc.](https://appshunter.io/developer/1462924074) |

## 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 |


### Dissertation Defense Coach

[App page](https://appshunter.io/ios/app/dissertation-defense-coach/id1462924075)

This app provides doctoral candidates with flashcards and question-by-question coaching to prepare for their dissertation defense. It offers guidance on answering potential questions across various aspects of their study, helping to build confidence and identify overlooked areas.

**Highlights:** Flashcard-style preparation, Question-by-question coaching, Guidance on answering questions, Covers introduction, literature review, methodology, findings, conclusions, Questions from beginner to advanced difficulty, Helps build confidence and poise

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

**In-app purchases:** none


## Frequently asked questions

### Is KnowThyHistory free?

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

### Is Dissertation Defense Coach free?

Dissertation Defense Coach costs $6.99, with no in-app purchases.

### Do KnowThyHistory or Dissertation Defense Coach have ads?

Neither KnowThyHistory nor Dissertation Defense Coach shows ads.

### Which is updated more often, KnowThyHistory or Dissertation Defense Coach?

KnowThyHistory ships an update every 22 months, and Dissertation Defense Coach weekly. Most recently, KnowThyHistory was updated on October 11, 2026 and Dissertation Defense Coach on October 6, 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.*