# otta（オッタ） vs みてねみまもりGPS

The clearest difference is monetization model: otta（オッタ） at free against みてねみまもりGPS's free with in-app purchases. On price, review sentiment, update cadence and ads there is nothing between them.

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

otta（オッタ） ships an update monthly, みてねみまもりGPS every 5 weeks. The most recent releases landed on October 12, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | otta（オッタ） | みてねみまもりGPS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.6 (40 ratings)](https://appshunter.io/ios/app/gps/id1535156868/reviews)** |
| Number of ratings | — | **40** |
| Positive reviews | 20.0% of reviews | **24.1% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 5 weeks |
| Monetization | **Free** | Free with in-app purchases |
| Size | 64 MB | 124 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [otta inc.](https://appshunter.io/developer/966828927) | [MIXI, Inc.](https://appshunter.io/developer/285951869) |

## What reviewers say

### otta（オッタ）

[App page](https://appshunter.io/ios/app/otta/id1521415414)

This service provides peace of mind by monitoring the location of loved ones, especially children. It utilizes beacon technology and GPS to ensure safety during daily commutes and outings, connecting families with location tracking and voice messaging.

**Highlights:** Real-time location tracking, Beacon technology for proximity alerts, GPS for nationwide coverage, Voice messaging for communication, Emergency panic button, Community-based neighborhood watch

**Features:** Vision Pro support

**In-app purchases:** none


### みてねみまもりGPS

[App page](https://appshunter.io/ios/app/gps/id1535156868)

This app allows parents to track their child's location using a small, lightweight GPS device. It provides real-time location updates, automatic arrival/departure notifications for frequently visited places, and a long-lasting battery.

**Highlights:** Real-time child location tracking, Automatic arrival/departure notifications, Small and lightweight GPS device, Long-lasting battery (up to 2 months), Family sharing of location data, Step count and activity tracking

**Features:** Apple Wallet, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Peace of mind for parents
- 👍 Useful for tracking children
- 👍 Voice messaging capability
- 👍 Setting up safe zones (spots)
- 👍 Sharing location with multiple users

**What reviewers complain about**

- 🐛 Frequent GPS inaccuracies
- 🐛 Device freezing/unresponsiveness
- 🐛 Battery life issues
- 🐛 Delayed or missed notifications
- 🐛 Voice message delivery problems

**Reported bugs**

- GPS location not updating for hours or days
- Device freezes or becomes unresponsive
- Device randomly shuts down
- Incorrect location displayed (e.g., different prefecture, over water)
- Notifications not arriving or arriving with significant delay

**Requested features**

- Separate volume control for the app
- Ability to send non-voice messages (emojis, stamps)
- Remote notification sound for the device
- Option to combine notification and voice message screens
- Ability to delete sent messages


## Frequently asked questions

### Is otta（オッタ） free?

otta（オッタ） is free to download, with no in-app purchases.

### Is みてねみまもりGPS free?

みてねみまもりGPS is free to download, with no in-app purchases.

### Do otta（オッタ） or みてねみまもりGPS have ads?

Neither otta（オッタ） nor みてねみまもりGPS shows ads.

### Which is updated more often, otta（オッタ） or みてねみまもりGPS?

otta（オッタ） ships an update monthly, and みてねみまもりGPS every 5 weeks. Most recently, otta（オッタ） was updated on October 12, 2026 and みてねみまもりGPS on October 14, 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.*