# Thadam vs ENGINEER'S PG

The clearest difference is update cadence: ENGINEER'S PG at every 3 weeks against Thadam's every 6 months. ENGINEER'S PG also leads on iOS requirement (12.4 vs 17.6). 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.

Thadam ships an update every 6 months, ENGINEER'S PG every 3 weeks. The most recent releases landed on November 1, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Thadam | ENGINEER'S PG |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 3 weeks** |
| Size | 7 MB | 38 MB |
| Requires iOS | 17.6 | **12.4** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [S Ravi Shankar](https://appshunter.io/developer/516903373) | [Surendiran Ganesan](https://appshunter.io/developer/1734370099) |

## What reviewers say

### Thadam

[App page](https://appshunter.io/ios/app/thadam-chennai-trains/id680031746)

**Features:** macOS Compatibility

**In-app purchases:** none


### ENGINEER'S PG

[App page](https://appshunter.io/ios/app/engineers-pg/id6478905764)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Thadam free?

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

### Is ENGINEER'S PG free?

ENGINEER'S PG is free to download, with no in-app purchases.

### Do Thadam or ENGINEER'S PG have ads?

Neither Thadam nor ENGINEER'S PG shows ads.

### Which is updated more often, Thadam or ENGINEER'S PG?

Thadam ships an update every 6 months, and ENGINEER'S PG every 3 weeks. Most recently, Thadam was updated on November 1, 2026 and ENGINEER'S PG on October 25, 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.*