# All Maths Formulas app vs StudyKiln

The clearest difference is ads: StudyKiln at none against All Maths Formulas app's shown. All Maths Formulas app's advantage is iOS requirement (15.0 vs 17.0). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. All Maths Formulas app sells 3 in-app purchases, starting at $0.99 per month and StudyKiln sells 3 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | All Maths Formulas app | StudyKiln |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/all-maths-formulas-app/id1668966787/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | Free with in-app purchases | — |
| Size | 45 MB | 53 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Merbin Joe](https://appshunter.io/developer/1281696078) | [Rob Rightmyer](https://appshunter.io/developer/285332279) |

## What reviewers say

### All Maths Formulas app

[App page](https://appshunter.io/ios/app/all-maths-formulas-app/id1668966787)

Access a comprehensive collection of mathematical formulas, study tools, and practice activities. This app aids in revision with features like a formula reader, mini calculator, unit converter, and customizable study sessions. It also includes engaging math games and note-taking capabilities.

**Highlights:** Extensive formula library, Practice activities and quizzes, Mini calculator and unit converter, Customizable study sessions, Math games and riddles, Note-taking and formula generation, Light and dark themes

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $0.99 | per month |
| Premium 6 Months | $2.99 | per 6 months |
| Premium Yearly | $4.99 | per year |


### StudyKiln

[App page](https://appshunter.io/ios/app/studykiln-recall-cards/id6790540375)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| N05-StudyKiln Monthly | $5.99 | per month |
| N05-StudyKiln Yearly | $29.99 | per year |
| N05-StudyKiln Lifetime | $59.99 | one-time |


## Frequently asked questions

### Is All Maths Formulas app free?

All Maths Formulas app is free to download, with in-app purchases available.

### Is StudyKiln free?

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

### Do All Maths Formulas app or StudyKiln have ads?

All Maths Formulas app shows ads; StudyKiln does not.

### Which is updated more often, All Maths Formulas app or StudyKiln?

All Maths Formulas app ships an update every 3 months, and StudyKiln every 3 months. Most recently, All Maths Formulas app was updated on November 3, 2026 and StudyKiln on October 31, 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.*