# ECE School vs Binomial Distribution Calc

The clearest difference is in-app purchases: ECE School at none against Binomial Distribution Calc's 8. ECE School also leads on iOS requirement (13.0 vs 15.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Binomial Distribution Calc sells 8 one-off in-app purchases. ECE School asks for nothing beyond the download.

ECE School ships an update every 5 weeks, Binomial Distribution Calc every 3 weeks. The most recent releases landed on May 18, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | ECE School | Binomial Distribution Calc |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 3 weeks** |
| Size | 19 MB | 180 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Anand Jain](https://appshunter.io/developer/1471118869) | [Glindemann, Sennoun, Langer GbR](https://appshunter.io/developer/1024972809) |

## What reviewers say

### ECE School

[App page](https://appshunter.io/ios/app/ece-school/id1475753278)

**Features:** macOS Compatibility

**In-app purchases:** none


### Binomial Distribution Calc

[App page](https://appshunter.io/ios/app/binomial-distribution-calc/id6472449122)

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| +30 User Tokens | $0.29 | one-time |
| +1 Convenience Token / 6h, max. +2 | $0.59 | one-time |
| +2 Convenience Tokens / 6h, max. +4 | $0.99 | one-time |
| +150 User Tokens | $0.99 | one-time |
| +300 User Tokens | $1.49 | one-time |
| +4 Convenience Tokens / 6h, max. +8 | $1.59 | one-time |
| Lifetime Access | $1.99 | one-time |
| Remove Ads | $1.99 | one-time |


## Frequently asked questions

### Is ECE School free?

ECE School is free to download, with no in-app purchases.

### Is Binomial Distribution Calc free?

Binomial Distribution Calc is free to download, with in-app purchases available.

### Do ECE School or Binomial Distribution Calc have ads?

Neither ECE School nor Binomial Distribution Calc shows ads.

### Which is updated more often, ECE School or Binomial Distribution Calc?

ECE School ships an update every 5 weeks, and Binomial Distribution Calc every 3 weeks. Most recently, ECE School was updated on May 18, 2026 and Binomial Distribution Calc on September 14, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*