# Transponder Schedule vs Remembrance SDB

The clearest difference is update cadence: Transponder Schedule at every 11 days against Remembrance SDB's every 3 months. Transponder Schedule also leads on iOS requirement (9.0 vs 15.1). Remembrance SDB's advantage is device support (4 vs 2). On price, 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.

Transponder Schedule ships an update every 11 days, Remembrance SDB every 3 months. Both last shipped on October 25, 2026.

## The numbers

| Metric | Transponder Schedule | Remembrance SDB |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 11 days** | Every 3 months |
| Size | 107 MB | 50 MB |
| Requires iOS | **9.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Apple TV** |
| Age rating | 4+ | 4+ |
| Developer | [Transponder AS](https://appshunter.io/developer/926724247) | [Remembrance Seventh Day Baptist Church](https://appshunter.io/developer/1667739937) |

## What reviewers say

### Transponder Schedule

[App page](https://appshunter.io/ios/app/transponder-schedule/id1523564897)

**Features:** macOS Compatibility

**In-app purchases:** none


### Remembrance SDB

[App page](https://appshunter.io/ios/app/remembrance-sdb/id1667739935)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Transponder Schedule free?

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

### Is Remembrance SDB free?

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

### Do Transponder Schedule or Remembrance SDB have ads?

Neither Transponder Schedule nor Remembrance SDB shows ads.

### Which is updated more often, Transponder Schedule or Remembrance SDB?

Transponder Schedule ships an update every 11 days, and Remembrance SDB every 3 months. Most recently, Transponder Schedule was updated on October 25, 2026 and Remembrance SDB 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.*