# OSSTF/FEESO Events vs CallHub

The clearest difference is iOS requirement: CallHub at 15.0 against OSSTF/FEESO Events's 17.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

OSSTF/FEESO Events ships an update every 2 months, CallHub monthly. The most recent releases landed on October 25, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | OSSTF/FEESO Events | CallHub |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.6 (524 ratings)](https://appshunter.io/ios/app/callhub/id1604601744/reviews)** |
| Number of ratings | — | **524** |
| Positive reviews | — | 18.2% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | — | Freemium |
| Size | 64 MB | 67 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [OSSTF Information Technology Department](https://appshunter.io/developer/1501404561) | [Gaglers Inc](https://appshunter.io/developer/1604601746) |

## What reviewers say

### OSSTF/FEESO Events

[App page](https://appshunter.io/ios/app/osstffeeso-events/id1501404562)

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

**In-app purchases:** none


### CallHub

[App page](https://appshunter.io/ios/app/callhub/id1604601744)

Make calls and send texts to support causes you care about. Engage in phone banking and peer-to-peer texting campaigns to mobilize supporters, identify voters, and drive fundraising efforts from anywhere.

**Highlights:** Automated dialers, Streamlined call conversations, Fast peer-to-peer texting, Bi-directional data sync, Monitor and record calls, Personalized conversations

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

**In-app purchases:** none


## Frequently asked questions

### Is OSSTF/FEESO Events free?

OSSTF/FEESO Events is free to download, with no in-app purchases.

### Is CallHub free?

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

### Do OSSTF/FEESO Events or CallHub have ads?

Neither OSSTF/FEESO Events nor CallHub shows ads.

### Which is updated more often, OSSTF/FEESO Events or CallHub?

OSSTF/FEESO Events ships an update every 2 months, and CallHub monthly. Most recently, OSSTF/FEESO Events was updated on October 25, 2026 and CallHub on October 30, 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.*