# A Level Mole Calculations vs Flash Stack

The clearest difference is ads: Flash Stack at none against A Level Mole Calculations's shown. Flash Stack also leads on update cadence (every 3 days vs every 11 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

A Level Mole Calculations ships an update every 11 months, Flash Stack every 3 days. The most recent releases landed on October 4, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | A Level Mole Calculations | Flash Stack |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 11 months | **Every 3 days** |
| Monetization | Ad-supported | — |
| Size | 8 MB | 8 MB |
| Requires iOS | **17.0** | 18.6 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Isomeos Limited](https://appshunter.io/developer/1674436218) | [Reuben Enterprises Ltd](https://appshunter.io/developer/1804593784) |

## What reviewers say

### A Level Mole Calculations

[App page](https://appshunter.io/ios/app/a-level-mole-calculations/id6477550086)

This app generates unlimited exam-style chemistry questions for post-16 students, covering all key mole calculation topics. It includes practice modes, quizzes, and mini-review tests to track progress and build confidence for exams.

**Highlights:** Automatic exam-style question generation, Covers all key mole calculation topics, Practice mode with mark schemes, Quiz mode with feedback, Mini review tests for progress tracking, Built-in periodic table

**Features:** macOS Compatibility

**In-app purchases:** none


### Flash Stack

[App page](https://appshunter.io/ios/app/flash-stack-revision-cards/id6763527608)

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

**In-app purchases:** none


## Frequently asked questions

### Is A Level Mole Calculations free?

A Level Mole Calculations is free to download, with no in-app purchases.

### Is Flash Stack free?

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

### Do A Level Mole Calculations or Flash Stack have ads?

A Level Mole Calculations shows ads; Flash Stack does not.

### Which is updated more often, A Level Mole Calculations or Flash Stack?

A Level Mole Calculations ships an update every 11 months, and Flash Stack every 3 days. Most recently, A Level Mole Calculations was updated on October 4, 2026 and Flash Stack on September 29, 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.*