# Mathify vs Notes and Keys(Notes & Keys)

The clearest difference is in-app purchases: Notes and Keys(Notes & Keys) at none against Mathify's 3. Notes and Keys(Notes & Keys) also leads on iOS requirement (12.0 vs 15.0). Mathify's advantage is update cadence (every 4 days vs fortnightly). On price, ads and device support there is nothing between them.

Both are free to download. Mathify sells 3 in-app purchases, starting at $1.99 per month. Notes and Keys(Notes & Keys) asks for nothing beyond the download.

Mathify ships an update every 4 days, Notes and Keys(Notes & Keys) fortnightly. The most recent releases landed on November 3, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | Mathify | Notes and Keys(Notes & Keys) |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (7 ratings)](https://appshunter.io/ios/app/mathify-math-editor/id1549563845/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 71.4% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 days** | Fortnightly |
| Monetization | Free with in-app purchases | — |
| Size | 76 MB | 34 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hakob Grigoryan](https://appshunter.io/developer/1549564147) | [Calpine Labs Private Limited](https://appshunter.io/developer/1039747246) |

## What reviewers say

### Mathify

[App page](https://appshunter.io/ios/app/mathify-math-editor/id1549563845)

Create and edit STEM documents with an AI-powered math editor. Convert handwritten formulas to digital text, process PDFs, and generate step-by-step solutions. Export your work in various formats.

**Highlights:** AI-powered math equation editor, PDF processing and modification, Handwriting and image to formula conversion, Step-by-step solutions with AI, Export to PDF and image formats, WolframAlpha integration

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Standard | $1.99 | per month |
| Professional | $2.99 | per month |
| Expert | $7.99 | per month |


### Notes and Keys(Notes & Keys)

[App page](https://appshunter.io/ios/app/notes-and-keysnotes-and-keys/id6740842077)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Mathify free?

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

### Is Notes and Keys(Notes & Keys) free?

Notes and Keys(Notes & Keys) is free to download, with no in-app purchases.

### Do Mathify or Notes and Keys(Notes & Keys) have ads?

Neither Mathify nor Notes and Keys(Notes & Keys) shows ads.

### Which is updated more often, Mathify or Notes and Keys(Notes & Keys)?

Mathify ships an update every 4 days, and Notes and Keys(Notes & Keys) fortnightly. Most recently, Mathify was updated on November 3, 2026 and Notes and Keys(Notes & Keys) on November 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.*