# Everyone's Calendar vs Source Browser for Research

The clearest difference is in-app purchases: Everyone's Calendar at none against Source Browser for Research's 1. Everyone's Calendar also leads on iOS requirement (14.0 vs 17.2). Source Browser for Research's advantage is ads (none vs shown) and update cadence (every 3 days vs every 2 months). On price and device support there is nothing between them.

Both are free to download. Source Browser for Research sells 1 one-off in-app purchase. Everyone's Calendar asks for nothing beyond the download.

Everyone's Calendar ships an update every 2 months, Source Browser for Research every 3 days. The most recent releases landed on October 2, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Everyone's Calendar | Source Browser for Research |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 3 days** |
| Size | 12 MB | 6 MB |
| Requires iOS | **14.0** | 17.2 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Takahiko Nakade](https://appshunter.io/developer/1513184888) | [YUKIYA SHIMODA](https://appshunter.io/developer/6804373908) |

## What reviewers say

### Everyone's Calendar

[App page](https://appshunter.io/ios/app/everyones-calendar/id1586009740)

**Features:** Siri integration

**In-app purchases:** none


### Source Browser for Research

[App page](https://appshunter.io/ios/app/source-browser-for-research/id6806154744)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TEXT MAP | $1.99 | one-time |


## Frequently asked questions

### Is Everyone's Calendar free?

Everyone's Calendar is free to download, with no in-app purchases.

### Is Source Browser for Research free?

Source Browser for Research is free to download, with in-app purchases available.

### Do Everyone's Calendar or Source Browser for Research have ads?

Everyone's Calendar shows ads; Source Browser for Research does not.

### Which is updated more often, Everyone's Calendar or Source Browser for Research?

Everyone's Calendar ships an update every 2 months, and Source Browser for Research every 3 days. Most recently, Everyone's Calendar was updated on October 2, 2026 and Source Browser for Research on October 11, 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.*