# Formula MAX vs iDroidSim

The clearest difference is price: Formula MAX at $0.99 against iDroidSim's $9.99. Formula MAX also leads on iOS requirement (13.0 vs 15). iDroidSim's advantage is review sentiment (100% vs 80%). On update cadence, ads, in-app purchases and monetization model there is nothing between them.

Formula MAX costs $0.99 and iDroidSim $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Formula MAX ships an update every 11 months, iDroidSim every 8 months. The most recent releases landed on October 15, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Formula MAX | iDroidSim |
| --- | --- | --- |
| Price | **$0.99** | $9.99 |
| Rating | **[4.8 (52 ratings)](https://appshunter.io/ios/app/formula-max/id454108371/reviews)** | — |
| Number of ratings | **52** | — |
| Positive reviews | 79.8% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 8 months** |
| Monetization | Paid | Paid |
| Size | 15 MB | 61 MB |
| Requires iOS | **13.0** | 15 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Mallow Technologies Private Limited](https://appshunter.io/developer/416807590) | [Vladimir Djokic](https://appshunter.io/developer/1483350231) |

## What reviewers say

### Formula MAX

[App page](https://appshunter.io/ios/app/formula-max/id454108371)

Access over 1100 physics, chemistry, and math formulas with a powerful search and offline access. Save favorites, use built-in calculators, and view a detailed periodic table. Designed for user convenience and quick reference.

**Highlights:** 1100+ formulas, definitions, and values, Offline access, Powerful search function, Favorites for quick access, Trigonometric and logarithmic calculators, Periodic table with element details

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 📚 Comprehensive collection of 1000+ formulas across math, physics, and chemistry
- 🔍 Powerful search function for easy formula location
- ⭐ Excellent value at $0.99 price point
- 📱 Clean and intuitive user interface design
- 🧪 Useful periodic table included in chemistry section

**What reviewers complain about**

- 📖 Lacks explanations and examples for formulas
- ❌ Non-interactive formulas (displayed as images only)
- 🔤 Numerous spelling and grammar errors throughout
- 🧬 Chemistry section lacks depth and advanced topics
- 📏 Font sizes too small in some sections

**Reported bugs**

- Search function returns no results for some queries
- Display glitches preventing information from showing
- Inconsistent symbology and notation within sections
- Spacing errors in text
- App crashes or performance issues

**Requested features**

- Add worked examples demonstrating formula application
- Include interactive calculators for solving problems
- Provide step-by-step solution walkthroughs
- Add more advanced chemistry topics (thermodynamics, quantum mechanics, etc.)
- Include visual diagrams and illustrations


### iDroidSim

[App page](https://appshunter.io/ios/app/idroidsim/id6471349087)

This powerful circuit simulator is designed for students, hobbyists, and professionals to perform electronics circuit design calculations. It offers interactive simulation of various components and complex circuits, providing accurate results for analysis and design.

**Highlights:** Circuit simulation for electronics design, Supports a wide range of electronic components, Interactive analysis of resistive and non-linear circuits, Numeric integration for reactive elements, Tools like oscilloscopes and digital logic gates, Suitable for students and professionals

**In-app purchases:** none


## Frequently asked questions

### Is Formula MAX free?

Formula MAX costs $0.99, with no in-app purchases.

### Is iDroidSim free?

iDroidSim costs $9.99, with no in-app purchases.

### Do Formula MAX or iDroidSim have ads?

Neither Formula MAX nor iDroidSim shows ads.

### Which is updated more often, Formula MAX or iDroidSim?

Formula MAX ships an update every 11 months, and iDroidSim every 8 months. Most recently, Formula MAX was updated on October 15, 2026 and iDroidSim on October 7, 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.*