# CALOG vs TreMemo

The clearest difference is ads: TreMemo at none against CALOG's shown. CALOG's advantage is update cadence (every 9 days vs every 2 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

CALOG ships an update every 9 days, TreMemo every 2 months. Both last shipped on October 25, 2026.

## The numbers

| Metric | CALOG | TreMemo |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 9 days** | Every 2 months |
| Size | 56 MB | 20 MB |
| Requires iOS | **16.4** | 17.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 17+ | 4+ |
| Developer | [KOKI YAMAMOTO](https://appshunter.io/developer/1849198450) | [TAKUMI KAWANO](https://appshunter.io/developer/1854121467) |

## What reviewers say

### CALOG

[App page](https://appshunter.io/ios/app/calog-ai/id6754609187)

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

**In-app purchases:** none


### TreMemo

[App page](https://appshunter.io/ios/app/trememo/id6755507456)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CALOG free?

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

### Is TreMemo free?

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

### Do CALOG or TreMemo have ads?

CALOG shows ads; TreMemo does not.

### Which is updated more often, CALOG or TreMemo?

CALOG ships an update every 9 days, and TreMemo every 2 months. Most recently, CALOG was updated on October 25, 2026 and TreMemo on October 25, 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.*