# IBMS Congress vs Chronoji

The clearest difference is update cadence: Chronoji at monthly against IBMS Congress's every 13 months. IBMS Congress's advantage is iOS requirement (16.4 vs 18.5). 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.

IBMS Congress ships an update every 13 months, Chronoji monthly. The most recent releases landed on October 7, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | IBMS Congress | Chronoji |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 13 months | **Monthly** |
| Size | 51 MB | 12 MB |
| Requires iOS | **16.4** | 18.5 |
| Devices | iPhone, iPad | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Institute of Biomedical Science](https://appshunter.io/developer/1611137923) | [gulsen ates](https://appshunter.io/developer/1803850887) |

## What reviewers say

### IBMS Congress

[App page](https://appshunter.io/ios/app/ibms-congress/id6449746370)

**In-app purchases:** none


### Chronoji

[App page](https://appshunter.io/ios/app/chronoji-countdown-timer/id6759876573)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is IBMS Congress free?

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

### Is Chronoji free?

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

### Do IBMS Congress or Chronoji have ads?

Both IBMS Congress and Chronoji show ads.

### Which is updated more often, IBMS Congress or Chronoji?

IBMS Congress ships an update every 13 months, and Chronoji monthly. Most recently, IBMS Congress was updated on October 7, 2026 and Chronoji on October 1, 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.*