# Cognitive Diary vs ThroughLine App

The clearest difference is update cadence: Cognitive Diary at fortnightly against ThroughLine App's every 5 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Cognitive Diary sells 2 in-app purchases, starting at $0.99 per month and ThroughLine App sells 4 in-app purchases, starting at $19.99 per month. Whichever you choose, the download price is not the number that matters.

Cognitive Diary ships an update fortnightly, ThroughLine App every 5 weeks. The most recent releases landed on September 28, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Cognitive Diary | ThroughLine App |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 5 weeks |
| Size | 60 MB | 58 MB |
| Requires iOS | 16.4 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [Vitalii Kovalov](https://appshunter.io/developer/1864691271) | [Throughline](https://appshunter.io/developer/1896030473) |

## What reviewers say

### Cognitive Diary

[App page](https://appshunter.io/ios/app/cognitive-diary/id6757118591)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PRO | $0.99 | per month |
| PRO | $9.99 | per year |


### ThroughLine App

[App page](https://appshunter.io/ios/app/throughline-app/id6765667702)

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ThroughLine Monthly | $19.99 | per month |
| ThroughLine 3-Month | $49.99 | per 3 months |
| ThroughLine 6-Month | $74.99 | per 6 months |
| ThroughLine Annual | $99.99 | per year |


## Frequently asked questions

### Is Cognitive Diary free?

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

### Is ThroughLine App free?

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

### Do Cognitive Diary or ThroughLine App have ads?

Neither Cognitive Diary nor ThroughLine App shows ads.

### Which is updated more often, Cognitive Diary or ThroughLine App?

Cognitive Diary ships an update fortnightly, and ThroughLine App every 5 weeks. Most recently, Cognitive Diary was updated on September 28, 2026 and ThroughLine App on September 18, 2026.

---

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