# StudyHack vs Knowtifs

The clearest difference is in-app purchases: Knowtifs at none against StudyHack's 2. StudyHack's advantage is ads (none vs shown) and update cadence (every 3 weeks vs every 7 months). On price and device support there is nothing between them.

Both are free to download. StudyHack sells 2 in-app purchases, starting at $6.99 per 7 days. Knowtifs asks for nothing beyond the download.

StudyHack ships an update every 3 weeks, Knowtifs every 7 months. The most recent releases landed on September 6, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | StudyHack | Knowtifs |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/studyhack-ai-homework-answers/id6476603378/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 3 weeks** | Every 7 months |
| Monetization | Free with in-app purchases | — |
| Size | 106 MB | 24 MB |
| Requires iOS | **14.0** | 16.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Ruvix](https://appshunter.io/developer/633382104) | [M Services GmbH](https://appshunter.io/developer/1396477404) |

## What reviewers say

### StudyHack

[App page](https://appshunter.io/ios/app/studyhack-ai-homework-answers/id6476603378)

This AI-powered tutor helps students solve academic problems by recognizing questions from photos and providing step-by-step solutions. It also assists with essay writing and summarization across various subjects.

**Highlights:** AI-powered problem solving, Step-by-step solution explanations, AI essay writing assistance, Text summarization tool, Supports multiple subjects, Camera-based problem recognition

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| StudyHack Plus | $6.99 | per 7 days |
| StudyHack Plus | $39.99 | per year |


### Knowtifs

[App page](https://appshunter.io/ios/app/knowtifs/id6744073812)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is StudyHack free?

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

### Is Knowtifs free?

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

### Do StudyHack or Knowtifs have ads?

Knowtifs shows ads; StudyHack does not.

### Which is updated more often, StudyHack or Knowtifs?

StudyHack ships an update every 3 weeks, and Knowtifs every 7 months. Most recently, StudyHack was updated on September 6, 2026 and Knowtifs on September 10, 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.*