# catechism.app vs SeaServ

The clearest difference is in-app purchases: SeaServ at none against catechism.app's 1. SeaServ also leads on iOS requirement (16.6 vs 18.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. catechism.app sells 1 in-app purchase, starting at $1.99 per year. SeaServ asks for nothing beyond the download.

catechism.app ships an update every 6 weeks, SeaServ monthly. The most recent releases landed on September 21, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | catechism.app | SeaServ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (166 ratings)](https://appshunter.io/ios/app/catechismapp/id359009311/reviews)** | — |
| Number of ratings | **166** | — |
| Positive reviews | 93.8% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Monthly** |
| Monetization | Free with in-app purchases | — |
| Size | 46 MB | 102 MB |
| Requires iOS | 18.6 | **16.6** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Deo Volente, LLC](https://appshunter.io/developer/359009314) | [Fortex Solutions](https://appshunter.io/developer/1745282454) |

## What reviewers say

### catechism.app

[App page](https://appshunter.io/ios/app/catechismapp/id359009311)

Access multiple Christian catechisms, including the New City, Westminster, Children's, Heidelberg, and Geneva. Study questions, answers, and scripture proofs with a feature to hide answers for memorization.

**Highlights:** New City Catechism, Westminster Catechisms, Heidelberg Catechism, Geneva Catechism, Scripture proofs, Hide answer for memorization

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Donation Subscription Small | $1.99 | per year |

**What reviewers like**

- 👍 Daily reminders for study
- 👍 Helps understand Bible
- 👍 Favorite catechism app
- 👍 Great way to review teachings
- 👍 Focuses on biblical standards

**What reviewers complain about**

- 🐛 Cannot mark questions completed
- 🐛 No way to mark where left off
- 🐛 Not organized well
- 🐛 Doesn't play sound
- 🐛 Stuck on screen

**Reported bugs**

- iPad in silent mode error
- Screen issues fixed by update

**Requested features**

- Copy scripture texts
- Add Fisher’s catechism
- Add Baptist Catechism based off 2nd LBCF 1689
- Copy portions to clipboard
- Attach notes to text


### SeaServ

[App page](https://appshunter.io/ios/app/seaserv/id6756427488)

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

**In-app purchases:** none


## Frequently asked questions

### Is catechism.app free?

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

### Is SeaServ free?

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

### Do catechism.app or SeaServ have ads?

Neither catechism.app nor SeaServ shows ads.

### Which is updated more often, catechism.app or SeaServ?

catechism.app ships an update every 6 weeks, and SeaServ monthly. Most recently, catechism.app was updated on September 21, 2026 and SeaServ on September 12, 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.*