# MAMORIO vs Riiiver

The clearest difference is rating: MAMORIO at 4.0 against Riiiver's 1.0. MAMORIO also leads on update cadence (every 10 days vs every 2 months) and review sentiment (25% vs 17%). Riiiver's advantage is in-app purchases (none vs 4). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. MAMORIO sells 4 in-app purchases, starting at $8.99 per year. Riiiver asks for nothing beyond the download.

MAMORIO holds the better App Store score, 4.0 against 1.0. Both are backed by a comparable volume of ratings — 3 and 4 respectively. Written reviews point the same way: 25% of MAMORIO's written reviews are positive against 17% of Riiiver's.

MAMORIO ships an update every 10 days, Riiiver every 2 months. The most recent releases landed on November 1, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | MAMORIO | Riiiver |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (3 ratings)](https://appshunter.io/ios/app/mamorio/id952095468/reviews)** | [1.0 (4 ratings)](https://appshunter.io/ios/app/riiiver/id1449580790/reviews) |
| Number of ratings | 3 | **4** |
| Positive reviews | **25.5% of reviews** | 16.7% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 2 months |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 63 MB | 34 MB |
| Requires iOS | 15.0 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [NEARIZE K.K.](https://appshunter.io/developer/952095467) | [CITIZEN WATCH CO.,LTD](https://appshunter.io/developer/434806605) |

## What reviewers say

### MAMORIO

[App page](https://appshunter.io/ios/app/mamorio/id952095468)

This app helps you prevent losing your belongings by attaching a small tag. It notifies you when you leave an item behind and allows you to see its last detected location via a Bluetooth crowd-sensor network. It also offers a community-based finding feature and lost-and-found integration in select regions.

**Highlights:** Left-behind alerts, Last detected location history, Crowd tracking network, MAMORIO Spot integration (Japan), iPhone found alerts (Japan), Tag setup and management

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Anshin Plan(wallet) | $8.99 | per year |
| AnshinPlan(Bag) | $8.99 | per year |
| Anshin Plan(Key) | $8.99 | per year |
| Anshin Plan(Electronics) | $8.99 | per year |


### Riiiver

[App page](https://appshunter.io/ios/app/riiiver/id1449580790)

This platform allows users to create and customize "iiideas" by connecting compatible products and services. No programming skills are required to assemble functional modules and bring your own ideas to life.

**Highlights:** Create and use functional "iiideas", Assemble functions from Trigger, Service, and Action Pieces, No programming skills needed, Develop custom Pieces (for advanced users), Connects compatible products and services, Open IoT platform

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is MAMORIO free?

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

### Is Riiiver free?

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

### Which has better reviews, MAMORIO or Riiiver?

MAMORIO is rated higher. MAMORIO averages 4.0 out of 5 from 3 ratings, while Riiiver averages 1.0 from 4 ratings.

### Do MAMORIO or Riiiver have ads?

Neither MAMORIO nor Riiiver shows ads.

### Which is updated more often, MAMORIO or Riiiver?

MAMORIO ships an update every 10 days, and Riiiver every 2 months. Most recently, MAMORIO was updated on November 1, 2026 and Riiiver on October 21, 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.*