# TZ iBoat vs Memory

The clearest difference is in-app purchases: Memory at none against TZ iBoat's 17. Memory also leads on rating (4.9 vs 4.6). TZ iBoat's advantage is update cadence (every 8 days vs every 3 months) and ratings volume (885 vs 10). On price, review sentiment, ads and monetization model there is nothing between them.

Both are free to download. TZ iBoat sells 13 in-app purchases, starting at $2.99 per month. Memory asks for nothing beyond the download.

Memory holds the better App Store score, 4.9 against 4.6. That said, the two scores are not equally well evidenced: TZ iBoat has 885 ratings behind it against 10, so its average is the more settled of the two. Written reviews point the same way: 80% of TZ iBoat's written reviews are positive against 81% of Memory's.

TZ iBoat ships an update every 8 days, Memory every 3 months. The most recent releases landed on October 29, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | TZ iBoat | Memory |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (885 ratings)](https://appshunter.io/ios/app/tz-iboat-marine-navigation/id1312769833/reviews) | **[4.9 (10 ratings)](https://appshunter.io/ios/app/memory-map-for-all/id1601873836/reviews)** |
| Number of ratings | **885** | 10 |
| Positive reviews | 79.6% of reviews | **81.3% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 8 days** | Every 3 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | **#85** | — |
| Size | 428 MB | 42 MB |
| Requires iOS | 14.2 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Nobeltec, Inc.](https://appshunter.io/developer/1312769832) | [Memory-Map](https://appshunter.io/developer/349996087) |

## What reviewers say

### TZ iBoat

[App page](https://appshunter.io/ios/app/tz-iboat-marine-navigation/id1312769833)

**Currently charting:** #85 Top Grossing · Navigation (US App Store)

Navigate the seas with advanced marine charts, GPS, and AIS data, even offline. This app offers detailed bathymetry, community-contributed map data, and dynamic features for safe boating, sailing, and fishing.

**Highlights:** Offline marine charts, GPS and route planning, AIS Online tracking, Community map contributions, Dynamic mooring and lighting, Advanced fishing tools, Tides and tidal currents

**Features:** Vision Pro support

**In-app purchases (13)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Essential Subscription | $2.99 | per month |
| Premium Subscription | $9.99 | per month |
| Great Lakes | $19.99 | per year |
| Canada East and North | $19.99 | per year |
| Canada West | $19.99 | per year |
| USA | $19.99 | per year |
| Bahamas | $30.99 | per year |
| Central America & Caribbean | $30.99 | per year |
| Elite Subscription | $39.99 | per month |
| Western Mediterranean | $40.99 | per year |
| Eastern Mediterranean | $61.99 | per year |
| AIS module | $8.99 | one-time |
| Radar module | $49.99 | one-time |

**What reviewers like**

- 🚀 Easy to use
- 🚀 Accurate charts
- 🚀 Useful features (weather, tides, currents, etc.)
- 🚀 Good integration with Furuno radar and AIS
- 🚀 Seamless cloud sync between devices

**What reviewers complain about**

- 🐛 Occasional crashes or freezing
- 🐛 Inaccurate or outdated charts in some areas
- 🐛 Anchor alarm not loud enough
- 🐛 Difficulty importing/managing routes and waypoints
- 🔋 Battery drain on mobile devices

**Reported bugs**

- GPS position not updating reliably while moving
- Radar overlay not functioning properly
- Compatibility issues with older devices or iOS versions

**Requested features**

- Automatic routing and trip planning
- Improved satellite imagery and overlays
- Better integration with other marine electronics
- More customization options for data displays
- Ability to mirror camera feeds as a rear-view


### Memory

[App page](https://appshunter.io/ios/app/memory-map-for-all/id1601873836)

Navigate anywhere with offline maps and GPS. Access a vast library of global maps, plan routes, and track your journey without a mobile data connection. Sync data across devices for seamless planning and navigation.

**Highlights:** Offline GPS navigation, Downloadable global maps, Route planning and editing, 3D World map view, Interactive terrain elevation profiles, Cloud sync across devices, GPX file import/export

**In-app purchases:** none

**What reviewers like**

- 🗺️ Excellent map quality and detail
- 📥 Offline map download capability
- 💰 One-time purchase option (no subscription)
- 🔄 Cross-device sync functionality
- 🧭 Comprehensive navigation features

**What reviewers complain about**

- 🐛 App closing issues (swipe-up doesn't work properly)
- 🚗 No Apple CarPlay integration
- 🧩 Non-intuitive user interface
- 🔄 Slow feature development over years
- 📱 Dynamic Island compatibility issues

**Reported bugs**

- App won't close properly with swipe-up gesture on iPhone
- Startup error message about improper closure
- Maps fail to download on new devices
- GPS location not detected on iPad despite enabled settings
- App switching gesture interferes with map centering

**Requested features**

- Apple CarPlay support
- Map auto-rotation to direction of travel
- More custom waypoint icons (food drop, water source, campsite, etc.)
- Better route optimization with more waypoints
- Map orientation options (North-up vs. route-up)


## Frequently asked questions

### Is TZ iBoat free?

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

### Is Memory free?

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

### Which has better reviews, TZ iBoat or Memory?

Memory is rated higher. TZ iBoat averages 4.6 out of 5 from 885 ratings, while Memory averages 4.9 from 10 ratings.

### Do TZ iBoat or Memory have ads?

Neither TZ iBoat nor Memory shows ads.

### Which is updated more often, TZ iBoat or Memory?

TZ iBoat ships an update every 8 days, and Memory every 3 months. Most recently, TZ iBoat was updated on October 29, 2026 and Memory on October 27, 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.*