# Ai张江 vs ota log

The clearest difference is update cadence: ota log at fortnightly against Ai张江's every 2 months. Ai张江's advantage is iOS requirement (15.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

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

Ai张江 ships an update every 2 months, ota log fortnightly. The most recent releases landed on November 3, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Ai张江 | ota log |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/ota-log/id6800717486/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | — | Free |
| Size | 102 MB | 71 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [上海张江智荟科技有限公司](https://appshunter.io/developer/1635094710) | [海龙 周](https://appshunter.io/developer/6798071411) |

## What reviewers say

### Ai张江

[App page](https://appshunter.io/ios/app/ai/id1635094708)

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

**In-app purchases:** none


### ota log

[App page](https://appshunter.io/ios/app/ota-log/id6800717486)

This app helps you meticulously record and organize details about your favorite events, performers, and cherished memories. Create a personalized digital scrapbook, manage artist information, and review your experiences through customizable statistics and calendar views. Enjoy powerful tools for organizing your life and preserving your favorite moments, all with your data securely stored on your device.

**Highlights:** Record event details (date, venue, performers), Create digital scrapbooks with photos, Manage artist profiles and relationships, Review events with statistics and calendar, Use sticker camera and home screen widgets, Local data storage and backup options

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

**In-app purchases:** none


## Frequently asked questions

### Is Ai张江 free?

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

### Is ota log free?

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

### Do Ai张江 or ota log have ads?

Neither Ai张江 nor ota log shows ads.

### Which is updated more often, Ai张江 or ota log?

Ai张江 ships an update every 2 months, and ota log fortnightly. Most recently, Ai张江 was updated on November 3, 2026 and ota log on October 29, 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.*