# PocketGrib vs Marine Instruments

The clearest difference is update cadence: PocketGrib at every 2 months against Marine Instruments's every 7 months. PocketGrib also leads on chart position (#37 vs unranked) and price ($5.99 vs $7.99). On ads and in-app purchases there is nothing between them.

PocketGrib costs $5.99 and Marine Instruments $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

PocketGrib ships an update every 2 months, Marine Instruments every 7 months. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | PocketGrib | Marine Instruments |
| --- | --- | --- |
| Price | **$5.99** | $7.99 |
| Rating | **[4.8 (577 ratings)](https://appshunter.io/ios/app/pocketgrib/id429394638/reviews)** | — |
| Number of ratings | **577** | — |
| Positive reviews | 93.2% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 7 months |
| Monetization | Free | — |
| Best chart rank | **#37** | — |
| Size | 34 MB | 1 MB |
| Requires iOS | **15.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Nicko Brennan](https://appshunter.io/developer/429394641) | [Stolk.cc](https://appshunter.io/developer/313529099) |

## What reviewers say

### PocketGrib

[App page](https://appshunter.io/ios/app/pocketgrib/id429394638)

**Currently charting:** #37 Top Paid · Weather (US App Store)

Access and analyze global weather data, including wind, precipitation, and pressure, directly on your mobile device. Visualize forecasts with animated maps and detailed graphs, perfect for outdoor activities and meteorology enthusiasts.

**Highlights:** Download and view global weather data, Animated weather map displays, Meteogram and raw data views, Configurable GRIB file downloads, Offline weather data access, Support for multiple weather models

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Easy to use
- 🚀 Accurate weather forecasts
- 🚀 Comprehensive data
- 🚀 Reliable and dependable
- 🚀 Useful for planning sailing/boating trips

**What reviewers complain about**

- 🐛 Occasional crashes or issues with downloads
- 🐛 Wind speed sometimes underestimated
- 🐛 Lack of wave height data for some areas

**Reported bugs**

- Corrupted map display after recent update
- Inability to download GRIB files in some areas

**Requested features**

- Add wave height data
- Improve graphics and visuals
- Provide more weather models to compare
- Faster data updates
- Ability to plot boat position and route


### Marine Instruments

[App page](https://appshunter.io/ios/app/marine-instruments/id6756301590)

**In-app purchases:** none


## Frequently asked questions

### Is PocketGrib free?

PocketGrib costs $5.99, with no in-app purchases.

### Is Marine Instruments free?

Marine Instruments costs $7.99, with no in-app purchases.

### Do PocketGrib or Marine Instruments have ads?

Neither PocketGrib nor Marine Instruments shows ads.

### Which is updated more often, PocketGrib or Marine Instruments?

PocketGrib ships an update every 2 months, and Marine Instruments every 7 months. Most recently, PocketGrib was updated on November 1, 2026 and Marine Instruments on October 30, 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.*