# CRSA vs Doc Chap

CRSA and Doc Chap are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

CRSA ships an update every 6 weeks, Doc Chap monthly. The most recent releases landed on September 18, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | CRSA | Doc Chap |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Monthly** |
| Size | 17 MB | 176 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [2LA](https://appshunter.io/developer/914812601) | [MERCURY GLOBAL](https://appshunter.io/developer/1811029725) |

## What reviewers say

### CRSA

[App page](https://appshunter.io/ios/app/crsa/id1462428136)

**Features:** macOS Compatibility

**In-app purchases:** none


### Doc Chap

[App page](https://appshunter.io/ios/app/doc-chap/id6754101364)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CRSA free?

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

### Is Doc Chap free?

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

### Do CRSA or Doc Chap have ads?

Neither CRSA nor Doc Chap shows ads.

### Which is updated more often, CRSA or Doc Chap?

CRSA ships an update every 6 weeks, and Doc Chap monthly. Most recently, CRSA was updated on September 18, 2026 and Doc Chap on September 14, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*