# Simple Machines by Tinybop vs Slice Fractions 2

The clearest difference is review sentiment: Slice Fractions 2 at 95% against Simple Machines by Tinybop's 37%. Slice Fractions 2 also leads on rating (4.7 vs 3.7) and ratings volume (1.2K vs 62). Simple Machines by Tinybop's advantage is price ($2.99 vs $3.99). On update cadence, ads, in-app purchases and monetization model there is nothing between them.

Simple Machines by Tinybop costs $2.99 and Slice Fractions 2 $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Slice Fractions 2 holds the better App Store score, 4.7 against 3.7. That said, the two scores are not equally well evidenced: Slice Fractions 2 has 1.2K ratings behind it against 62, so its average is the more settled of the two. Written reviews point the same way: 37% of Simple Machines by Tinybop's written reviews are positive against 95% of Slice Fractions 2's.

Simple Machines by Tinybop ships an update every 4 months, Slice Fractions 2 every 2 months. Both last shipped on November 11, 2026.

## The numbers

| Metric | Simple Machines by Tinybop | Slice Fractions 2 |
| --- | --- | --- |
| Price | **$2.99** | $3.99 |
| Rating | [3.7 (62 ratings)](https://appshunter.io/ios/app/simple-machines-by-tinybop/id936966570/reviews) | **[4.7 (1.2K ratings)](https://appshunter.io/ios/app/slice-fractions-2/id1313342412/reviews)** |
| Number of ratings | 62 | **1.2K** |
| Positive reviews | 37.4% of reviews | **95.3% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | Paid | Paid |
| Size | 112 MB | 381 MB |
| Requires iOS | 12.0 | **8.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tinybop Inc.](https://appshunter.io/developer/682046582) | [Ululab](https://appshunter.io/developer/794730216) |

## 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


### Slice Fractions 2

[App page](https://appshunter.io/ios/app/slice-fractions-2/id1313342412)

Embark on a journey to recover a stolen hat by solving over 100 physics-based fraction puzzles. This game introduces fraction concepts visually and interactively, with new creatures and challenges.

**Highlights:** Learn fraction concepts without words, Over 100 unique physics puzzles, 3 colorful worlds, Collect friendly pets, Safe digital environment

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Fun and educational
- 🤩 Engaging and intuitive
- 🎨 Cute and creative visuals
- 💡 Helps learn fractions
- 🧠 Promotes problem-solving

**What reviewers complain about**

- 🐛 Occasional crashes or bugs
- 🤔 Some levels too challenging
- 🕰️ Could use more content/levels

**Reported bugs**

- Level 19 reported as impossible
- Crash on Multiplication level 33

**Requested features**

- More math concepts beyond fractions
- Ability to track progress/achievements
- Multiplayer or collaborative mode


## Frequently asked questions

### Is Simple Machines by Tinybop free?

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

### Is Slice Fractions 2 free?

Slice Fractions 2 costs $3.99, with no in-app purchases.

### Which has better reviews, Simple Machines by Tinybop or Slice Fractions 2?

Slice Fractions 2 is rated higher. Simple Machines by Tinybop averages 3.7 out of 5 from 62 ratings, while Slice Fractions 2 averages 4.7 from 1.2K ratings.

### Do Simple Machines by Tinybop or Slice Fractions 2 have ads?

Neither Simple Machines by Tinybop nor Slice Fractions 2 shows ads.

### Which is updated more often, Simple Machines by Tinybop or Slice Fractions 2?

Simple Machines by Tinybop ships an update every 4 months, and Slice Fractions 2 every 2 months. Most recently, Simple Machines by Tinybop was updated on November 11, 2026 and Slice Fractions 2 on November 11, 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.*