# Simple Machines by Tinybop vs Math Practice Flash Cards

The clearest difference is price: Math Practice Flash Cards at Free against Simple Machines by Tinybop's $2.99. Simple Machines by Tinybop's advantage is in-app purchases (none vs 1) and iOS requirement (12.0 vs 18.6). On update cadence, ads and device support there is nothing between them.

Math Practice Flash Cards is free to download; Simple Machines by Tinybop costs $2.99 up front. Math Practice Flash Cards sells 1 one-off in-app purchase. Simple Machines by Tinybop asks for nothing beyond the download.

Simple Machines by Tinybop ships an update every 4 months, Math Practice Flash Cards every 6 months. The most recent releases landed on October 15, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Simple Machines by Tinybop | Math Practice Flash Cards |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[3.7 (62 ratings)](https://appshunter.io/ios/app/simple-machines-by-tinybop/id936966570/reviews)** | — |
| Number of ratings | **62** | — |
| Positive reviews | 37.4% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 6 months |
| Monetization | Paid | — |
| Size | 112 MB | 10 MB |
| Requires iOS | **12.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Tinybop Inc.](https://appshunter.io/developer/682046582) | [Easy Simple Smart](https://appshunter.io/developer/1517332870) |

## What reviewers say

### Simple Machines by Tinybop

[App page](https://appshunter.io/ios/app/simple-machines-by-tinybop/id936966570)

Explore the playful side of physics and learn about simple machines through interactive experiments. Kids can discover how levers, pulleys, and other mechanisms work by building and testing them in a digital sandbox environment. This app is designed to spark curiosity and understanding of scientific principles.

**Highlights:** Explore 6 simple machines, Experiment with real-world physics, Investigate physics at work, Learn about force and motion, Kid-friendly design, Interactive labels in 40+ languages

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 🎨 Beautiful graphics and design
- 🧠 Educational and informative
- 👨‍👩‍👧‍👦 Good for kids and learning
- 💡 Sparks curiosity and imagination
- 👍 Intuitive and easy to use

**What reviewers complain about**

- 😴 Boring and repetitive
- 💸 Expensive for limited content
- 🤷‍♂️ Lacks clear goals or objectives
- 🤏 Limited interaction and content
- 🚫 Not a game, more of a toy

**Reported bugs**

- Crashes immediately on launch
- Cannot install after purchase
- App crashes after loading screen
- No sound
- Does not work

**Requested features**

- Add a creative building mode
- More levels and modules
- Sandbox mode
- Ability to build own machines
- More interactive elements


### Math Practice Flash Cards

[App page](https://appshunter.io/ios/app/math-practice-flash-cards/id1541767306)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All Features | $2.99 | one-time |


## Frequently asked questions

### Is Simple Machines by Tinybop free?

Simple Machines by Tinybop costs $2.99, with no in-app purchases.

### Is Math Practice Flash Cards free?

Math Practice Flash Cards is free to download, with in-app purchases available.

### Do Simple Machines by Tinybop or Math Practice Flash Cards have ads?

Neither Simple Machines by Tinybop nor Math Practice Flash Cards shows ads.

### Which is updated more often, Simple Machines by Tinybop or Math Practice Flash Cards?

Simple Machines by Tinybop ships an update every 4 months, and Math Practice Flash Cards every 6 months. Most recently, Simple Machines by Tinybop was updated on October 15, 2026 and Math Practice Flash Cards on September 30, 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.*