# postalk vs CaptaLog

The clearest difference is in-app purchases: CaptaLog at none against postalk's 2. CaptaLog also leads on ads (none vs shown) and update cadence (every 2 weeks vs monthly). postalk's advantage is iOS requirement (15.6 vs 26.2). On price and device support there is nothing between them.

Both are free to download. postalk sells 2 in-app purchases, starting at $5.99 per month. CaptaLog asks for nothing beyond the download.

postalk ships an update monthly, CaptaLog every 2 weeks. The most recent releases landed on September 9, 2026 and July 4, 2026 respectively.

## The numbers

| Metric | postalk | CaptaLog |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Every 2 weeks** |
| Size | 90 MB | 8 MB |
| Requires iOS | **15.6** | 26.2 |
| Devices | iPhone, iPod | iPhone, Apple Watch |
| Age rating | 17+ | 4+ |
| Developer | [postalk株式会社](https://appshunter.io/developer/1660710551) | [ARIMASA MORIYA](https://appshunter.io/developer/1864837598) |

## What reviewers say

### postalk

[App page](https://appshunter.io/ios/app/postalk/id1660710549)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 使い放題プラン | $5.99 | per month |
| 年額8,980円 | $59.99 | per year |


### CaptaLog

[App page](https://appshunter.io/ios/app/captalog-thought-log-and-notes/id6757141893)

**In-app purchases:** none


## Frequently asked questions

### Is postalk free?

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

### Is CaptaLog free?

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

### Do postalk or CaptaLog have ads?

postalk shows ads; CaptaLog does not.

### Which is updated more often, postalk or CaptaLog?

postalk ships an update monthly, and CaptaLog every 2 weeks. Most recently, postalk was updated on September 9, 2026 and CaptaLog on July 4, 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.*