# たいちょうメモリー vs Vertigo Tracker

The clearest difference is update cadence: Vertigo Tracker at every 4 days against たいちょうメモリー's fortnightly. Vertigo Tracker also leads on iOS requirement (16.0 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. たいちょうメモリー sells 4 in-app purchases, starting at $5.99 per month and Vertigo Tracker sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

たいちょうメモリー ships an update fortnightly, Vertigo Tracker every 4 days. The most recent releases landed on October 18, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | たいちょうメモリー | Vertigo Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 4 days** |
| Size | 124 MB | 34 MB |
| Requires iOS | 26.0 | **16.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Ai Takaki](https://appshunter.io/developer/1832284401) | [nobutaka kawasaki](https://appshunter.io/developer/6797384563) |

## What reviewers say

### たいちょうメモリー

[App page](https://appshunter.io/ios/app/id6749819642)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $5.99 | per month |
| Premium | $59.99 | per year |
| Stool Type Top 3 | $2.99 | one-time |
| Top 3 Types | $2.99 | one-time |


### Vertigo Tracker

[App page](https://appshunter.io/ios/app/vertigo-tracker-dizzy-diary/id6799015322)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DizzyLog Pro (one-time) | $19.99 | one-time |


## Frequently asked questions

### Is たいちょうメモリー free?

たいちょうメモリー is free to download, with in-app purchases available.

### Is Vertigo Tracker free?

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

### Do たいちょうメモリー or Vertigo Tracker have ads?

Neither たいちょうメモリー nor Vertigo Tracker shows ads.

### Which is updated more often, たいちょうメモリー or Vertigo Tracker?

たいちょうメモリー ships an update fortnightly, and Vertigo Tracker every 4 days. Most recently, たいちょうメモリー was updated on October 18, 2026 and Vertigo Tracker on October 23, 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.*