# さいたま市防災アプリ vs Time to Replace

The clearest difference is in-app purchases: さいたま市防災アプリ at none against Time to Replace's 1. さいたま市防災アプリ also leads on device support (3 vs 1) and iOS requirement (15.6 vs 17.0). Time to Replace's advantage is update cadence (every 10 days vs every 5 weeks). On price and ads there is nothing between them.

Both are free to download. Time to Replace sells 1 one-off in-app purchase. さいたま市防災アプリ asks for nothing beyond the download.

さいたま市防災アプリ ships an update every 5 weeks, Time to Replace every 10 days. The most recent releases landed on November 3, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | さいたま市防災アプリ | Time to Replace |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 10 days** |
| Size | 52 MB | 1 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [SAITAMA CITY](https://appshunter.io/developer/1590254831) | [SHIN HOMMA](https://appshunter.io/developer/6784502940) |

## What reviewers say

### さいたま市防災アプリ

[App page](https://appshunter.io/ios/app/id1590254829)

**Features:** Vision Pro support

**In-app purchases:** none


### Time to Replace

[App page](https://appshunter.io/ios/app/time-to-replace-reminders/id6786466957)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| そろそろ交換 Pro | $2.99 | one-time |


## Frequently asked questions

### Is さいたま市防災アプリ free?

さいたま市防災アプリ is free to download, with no in-app purchases.

### Is Time to Replace free?

Time to Replace is free to download, with in-app purchases available.

### Do さいたま市防災アプリ or Time to Replace have ads?

Neither さいたま市防災アプリ nor Time to Replace shows ads.

### Which is updated more often, さいたま市防災アプリ or Time to Replace?

さいたま市防災アプリ ships an update every 5 weeks, and Time to Replace every 10 days. Most recently, さいたま市防災アプリ was updated on November 3, 2026 and Time to Replace on November 10, 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.*