# Backlog vs ZXY[ジザイ]

The clearest difference is monetization model: ZXY[ジザイ] at free against Backlog's ad-supported. ZXY[ジザイ] also leads on review sentiment (20% vs 9%) and iOS requirement (15.0 vs 17.0). On price, update cadence, ads and in-app purchases there is nothing between them.

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

Backlog ships an update monthly, ZXY[ジザイ] every 5 weeks. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Backlog | ZXY[ジザイ] |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (43 ratings)](https://appshunter.io/ios/app/backlog-project-management/id863872037/reviews)** | — |
| Number of ratings | **43** | — |
| Positive reviews | 8.7% of reviews | **20.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 5 weeks |
| Monetization | Ad-supported | **Free** |
| Size | 27 MB | 31 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Nulab Inc.](https://appshunter.io/developer/756503892) | [株式会社ザイマックス](https://appshunter.io/developer/1543323654) |

## What reviewers say

### Backlog

[App page](https://appshunter.io/ios/app/backlog-project-management/id863872037)

This app is a project management and collaboration tool designed for teams to enhance productivity and project visibility. It allows for on-the-go updates, feedback, and task management, facilitating seamless teamwork across departments.

**Highlights:** Project and task organization, Real-time activity feed, In-task comment threads, Subtasking for organization, Collaborative wikis, Bug tracking, File sharing

**Features:** Vision Pro support

**In-app purchases:** none


### ZXY[ジザイ]

[App page](https://appshunter.io/ios/app/zxy/id1567524426)

This app streamlines access to satellite office services, allowing members to easily search for available locations on a map and display QR codes for entry and exit with a single tap. It also facilitates booking management and calendar integration.

**Highlights:** Map-based search for available offices, One-tap QR code display for entry/exit, Easy booking and reservation management, Calendar integration with Google Calendar and iPhone calendar, Quick access to frequently used booking screens

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Backlog free?

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

### Is ZXY[ジザイ] free?

ZXY[ジザイ] is free to download, with no in-app purchases.

### Do Backlog or ZXY[ジザイ] have ads?

Neither Backlog nor ZXY[ジザイ] shows ads.

### Which is updated more often, Backlog or ZXY[ジザイ]?

Backlog ships an update monthly, and ZXY[ジザイ] every 5 weeks. Most recently, Backlog was updated on October 26, 2026 and ZXY[ジザイ] 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.*