# JCBOSEUST eLibrary vs Physics by A. Singh Sir

The clearest difference is update cadence: Physics by A. Singh Sir at every 2 months against JCBOSEUST eLibrary's every 8 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

JCBOSEUST eLibrary ships an update every 8 months, Physics by A. Singh Sir every 2 months. The most recent releases landed on November 7, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | JCBOSEUST eLibrary | Physics by A. Singh Sir |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 2 months** |
| Size | 71 MB | 111 MB |
| Requires iOS | 16.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Refread Solutions Private Limited](https://appshunter.io/developer/1495104123) | [Anuj Gupta](https://appshunter.io/developer/1651060633) |

## What reviewers say

### JCBOSEUST eLibrary

[App page](https://appshunter.io/ios/app/jcboseust-elibrary/id1503050235)

**Features:** macOS Compatibility

**In-app purchases:** none


### Physics by A. Singh Sir

[App page](https://appshunter.io/ios/app/physics-by-a-singh-sir/id6737411285)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is JCBOSEUST eLibrary free?

JCBOSEUST eLibrary is free to download, with no in-app purchases.

### Is Physics by A. Singh Sir free?

Physics by A. Singh Sir is free to download, with no in-app purchases.

### Do JCBOSEUST eLibrary or Physics by A. Singh Sir have ads?

Neither JCBOSEUST eLibrary nor Physics by A. Singh Sir shows ads.

### Which is updated more often, JCBOSEUST eLibrary or Physics by A. Singh Sir?

JCBOSEUST eLibrary ships an update every 8 months, and Physics by A. Singh Sir every 2 months. Most recently, JCBOSEUST eLibrary was updated on November 7, 2026 and Physics by A. Singh Sir on November 8, 2026.

---

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