# CsCall vs PhiDr

The clearest difference is in-app purchases: CsCall at none against PhiDr's 3. CsCall also leads on ads (none vs shown) and iOS requirement (13.4 vs 15.1). PhiDr's advantage is update cadence (every 10 days vs every 3 months). On price and device support there is nothing between them.

Both are free to download. PhiDr sells 3 in-app purchases, starting at $2.99 per 7 days. CsCall asks for nothing beyond the download.

CsCall ships an update every 3 months, PhiDr every 10 days. The most recent releases landed on September 12, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | CsCall | PhiDr |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/phidr/id6755478588/reviews)** |
| Number of ratings | — | **3** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 10 days** |
| Monetization | — | Free with in-app purchases |
| Size | 52 MB | 56 MB |
| Requires iOS | **13.4** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Caresoft Sofware Company Limited](https://appshunter.io/developer/1301970099) | [Hoang Nguyen](https://appshunter.io/developer/1854113147) |

## What reviewers say

### CsCall

[App page](https://appshunter.io/ios/app/cscall/id6447892382)

**Features:** macOS Compatibility

**In-app purchases:** none


### PhiDr

[App page](https://appshunter.io/ios/app/phidr/id6755478588)

A community platform for intellectually curious individuals, including PhD students and researchers. It prioritizes meaningful connections based on shared academic interests and research, with a focus on fostering offline discussions.

**Highlights:** Academic profiling, Privacy-first discovery, Curated daily connections, Weekly engagement cycle, Focus on offline meetings

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Weekly | $2.99 | per 7 days |
| Premium Monthly | $6.99 | per month |
| Premium 3 Months | $14.99 | per 3 months |


## Frequently asked questions

### Is CsCall free?

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

### Is PhiDr free?

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

### Do CsCall or PhiDr have ads?

PhiDr shows ads; CsCall does not.

### Which is updated more often, CsCall or PhiDr?

CsCall ships an update every 3 months, and PhiDr every 10 days. Most recently, CsCall was updated on September 12, 2026 and PhiDr on September 18, 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.*