# Prism Lab vs Count Money !

The clearest difference is rating: Count Money ! at 4.2 against Prism Lab's 3.3. Count Money ! also leads on in-app purchases (none vs 1) and update cadence (every 12 months vs every 216 months). Prism Lab's advantage is ads (none vs shown). On price, review sentiment, ratings volume and device support there is nothing between them.

Both are free to download. Prism Lab sells 1 one-off in-app purchase. Count Money ! asks for nothing beyond the download.

Count Money ! holds the better App Store score, 4.2 against 3.3. Both are backed by a comparable volume of ratings — 287 and 524 respectively. Written reviews complicate that: 80% of Prism Lab's written reviews are positive against 73% of Count Money !'s, so the app with the better star average is not the one people write more warmly about.

Prism Lab ships an update every 216 months, Count Money ! every 12 months. The most recent releases landed on October 31, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Prism Lab | Count Money ! |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.3 (287 ratings)](https://appshunter.io/ios/app/prism-lab/id301875263/reviews) | **[4.2 (524 ratings)](https://appshunter.io/ios/app/count-money/id517571875/reviews)** |
| Number of ratings | 287 | **524** |
| Positive reviews | **80.0% of reviews** | 72.5% of reviews |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 216 months | **Every 12 months** |
| Monetization | **Free** | Ad-supported |
| Size | 2 MB | 20 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [KZ Labs](https://appshunter.io/developer/1091008972) | [Horizon Business, Inc.](https://appshunter.io/developer/431586531) |

## What reviewers say

### Prism Lab

[App page](https://appshunter.io/ios/app/prism-lab/id301875263)

This application simulates lasers passing through prisms, demonstrating light refraction and reflection using Snell's Law. Users can adjust light sources, materials, and prism shapes to observe how light's trajectory changes between environments. It's a practical tool for understanding optical principles.

**Highlights:** Laser refraction simulation, Snell's Law implementation, Adjustable light source, Variable prism shapes, Different material options, Angle calculation

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Buy me a coffee | $2.99 | one-time |


### Count Money !

[App page](https://appshunter.io/ios/app/count-money/id517571875)

Practice counting money with adjustable difficulty and problem counts. Progress through levels to master financial skills. This app is designed for educational purposes.

**Highlights:** Practice counting money, Adjustable difficulty levels, Select number of problems, Progress through levels, Master financial skills

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

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use and intuitive interface
- 💰 Effective for learning money counting skills
- 🎓 Helpful for beginners and students
- 🆓 Free app with no cost barrier
- 🎮 Engaging and fun for kids

**What reviewers complain about**

- 🔁 Repetitive with limited variety in amounts
- 😴 Can become boring after extended use
- 📺 Distracting ads interrupt learning experience
- 🌍 Limited to US currency only
- ⚙️ Lacks customization and settings options

**Reported bugs**

- Incompatible with iPad Pro
- App crashes or performance issues on certain devices

**Requested features**

- Add more coin amount variations (e.g., $0.78, $0.98, $0.57)
- Include dollar bills in addition to coins
- Support for international currencies and countries
- Add 50-cent pieces to coin options
- Toggle-able total amount display on screen


## Frequently asked questions

### Is Prism Lab free?

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

### Is Count Money ! free?

Count Money ! is free to download, with no in-app purchases.

### Which has better reviews, Prism Lab or Count Money !?

Count Money ! is rated higher. Prism Lab averages 3.3 out of 5 from 287 ratings, while Count Money ! averages 4.2 from 524 ratings.

### Do Prism Lab or Count Money ! have ads?

Count Money ! shows ads; Prism Lab does not.

### Which is updated more often, Prism Lab or Count Money !?

Prism Lab ships an update every 216 months, and Count Money ! every 12 months. Most recently, Prism Lab was updated on October 31, 2026 and Count Money ! on November 6, 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.*