# IBU AIS vs Physics

The clearest difference is in-app purchases: IBU AIS at none against Physics's 4. IBU AIS also leads on device support (3 vs 1) and iOS requirement (11.0 vs 17.0). Physics's advantage is update cadence (every 2 months vs every 38 months). On price and ads there is nothing between them.

Both are free to download. Physics sells 4 in-app purchases, starting at $1.99 per month. IBU AIS asks for nothing beyond the download.

IBU AIS ships an update every 38 months, Physics every 2 months. The most recent releases landed on October 4, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | IBU AIS | Physics |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (20 ratings)](https://appshunter.io/ios/app/physics-formulas-2026/id1495587959/reviews)** |
| Number of ratings | — | **20** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 38 months | **Every 2 months** |
| Monetization | — | Free with in-app purchases |
| Size | 7 MB | 30 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [International Burch University](https://appshunter.io/developer/1391022271) | [Nikita Chernykh](https://appshunter.io/developer/1448243728) |

## What reviewers say

### IBU AIS

[App page](https://appshunter.io/ios/app/ibu-ais/id1446893281)

**Features:** macOS Compatibility

**In-app purchases:** none


### Physics

[App page](https://appshunter.io/ios/app/physics-formulas-2026/id1495587959)

This interactive reference app provides a comprehensive collection of physics terms, formulas, and calculators. It's designed to help users prepare for tests and Olympiads by offering clear explanations, interactive tables, and internal search functionality.

**Highlights:** 280+ physics terms and definitions, 250+ categorized physics formulas, 180+ interactive calculators, Interactive tables for knowledge assimilation, Internal search for terms and formulas, Convenient in-app navigation

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Professional 1 Month | $1.99 | per month |
| Professional 6 Month | $6.99 | per 6 months |
| Professional 12 Month | $14.99 | per year |
| Professional - unlimited | $24.99 | one-time |


## Frequently asked questions

### Is IBU AIS free?

IBU AIS is free to download, with no in-app purchases.

### Is Physics free?

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

### Do IBU AIS or Physics have ads?

Neither IBU AIS nor Physics shows ads.

### Which is updated more often, IBU AIS or Physics?

IBU AIS ships an update every 38 months, and Physics every 2 months. Most recently, IBU AIS was updated on October 4, 2026 and Physics on October 24, 2026.

---

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