# Trigger Keeper vs Mosine

The clearest difference is price: Mosine at Free against Trigger Keeper's $4.99. Mosine also leads on iOS requirement (15.0 vs 17.2). Trigger Keeper's advantage is in-app purchases (none vs 1). On update cadence, ads and device support there is nothing between them.

Mosine is free to download; Trigger Keeper costs $4.99 up front. Mosine sells 1 one-off in-app purchase. Trigger Keeper asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on November 7, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Trigger Keeper | Mosine |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/mosine/id6802460933/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Monetization | — | Free |
| Size | 3 MB | 29 MB |
| Requires iOS | 17.2 | **15.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Brian Ukestad](https://appshunter.io/developer/1870321026) | [JULIO HENRIQUE DO FRANCA](https://appshunter.io/developer/6802460935) |

## What reviewers say

### Trigger Keeper

[App page](https://appshunter.io/ios/app/trigger-keeper-voice-camera/id6774868117)

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

**In-app purchases:** none


### Mosine

[App page](https://appshunter.io/ios/app/mosine/id6802460933)

This app helps you declutter your photo library by presenting photos taken on this day in past years. You can easily select and delete unwanted pictures in batches, making photo management a simple daily ritual. It prioritizes privacy, keeping all your photos on your device.

**Highlights:** Daily photo memories, Batch photo deletion, Intuitive photo selection, Privacy-focused design, Lifetime cleaning stats, Optional daily reminders

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Mosine Plus | $4.99 | one-time |


## Frequently asked questions

### Is Trigger Keeper free?

Trigger Keeper costs $4.99, with no in-app purchases.

### Is Mosine free?

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

### Do Trigger Keeper or Mosine have ads?

Neither Trigger Keeper nor Mosine shows ads.

### Which is updated more often, Trigger Keeper or Mosine?

Trigger Keeper ships an update every 2 weeks, and Mosine every 2 weeks. Most recently, Trigger Keeper was updated on November 7, 2026 and Mosine on November 6, 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.*