# Catechize vs 1689.

Catechize and 1689. 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.

Both ship on a similar rhythm, roughly every 5 days. The most recent releases landed on September 25, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Catechize | 1689. |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 days | Every 5 days |
| Size | 10 MB | 8 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | iPhone, iPad | **iPhone, iPad, Apple Watch** |
| Age rating | 9+ | 4+ |
| Developer | [AM8 B.V.](https://appshunter.io/developer/1864964251) | [Joshua Worth](https://appshunter.io/developer/1833539375) |

## What reviewers say

### Catechize

[App page](https://appshunter.io/ios/app/catechize/id6757162133)

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

**In-app purchases:** none


### 1689.

[App page](https://appshunter.io/ios/app/1689/id6796099200)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Catechize free?

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

### Is 1689. free?

1689. is free to download, with no in-app purchases.

### Do Catechize or 1689. have ads?

Neither Catechize nor 1689. shows ads.

### Which is updated more often, Catechize or 1689.?

Catechize ships an update every 5 days, and 1689. every 5 days. Most recently, Catechize was updated on September 25, 2026 and 1689. on September 24, 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.*