# Approach Charts vs WhatTheFreq

The clearest difference is in-app purchases: WhatTheFreq at none against Approach Charts's 2. WhatTheFreq also leads on update cadence (every 6 weeks vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Approach Charts sells 2 in-app purchases, starting at $0.99 per month. WhatTheFreq asks for nothing beyond the download.

Approach Charts ships an update every 3 months, WhatTheFreq every 6 weeks. The most recent releases landed on November 6, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Approach Charts | WhatTheFreq |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.0 (5 ratings)](https://appshunter.io/ios/app/approach-charts/id560829267/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 6 weeks** |
| Monetization | Subscription | — |
| Size | 37 MB | 3 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Candidus LLC](https://appshunter.io/developer/1776981240) | [Bitt-Labs Limited Liability Company](https://appshunter.io/developer/6784393450) |

## What reviewers say

### Approach Charts

[App page](https://appshunter.io/ios/app/approach-charts/id560829267)

Access FAA Instrument Approach charts for the US, including airport diagrams, minimums, and runway information. Get live weather and NOTAMs, and search by various criteria. The database and charts update monthly.

**Highlights:** FAA Instrument Approach charts, Airport diagrams and runway information, Live weather and NOTAMs, Search by airport name, city, identifier, or state, Quick access to favorite airports, Monthly automatic updates

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly subscription | $0.99 | per month |
| Annual subscription | $9.99 | per year |


### WhatTheFreq

[App page](https://appshunter.io/ios/app/whatthefreq/id6784814967)

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

**In-app purchases:** none


## Frequently asked questions

### Is Approach Charts free?

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

### Is WhatTheFreq free?

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

### Do Approach Charts or WhatTheFreq have ads?

Neither Approach Charts nor WhatTheFreq shows ads.

### Which is updated more often, Approach Charts or WhatTheFreq?

Approach Charts ships an update every 3 months, and WhatTheFreq every 6 weeks. Most recently, Approach Charts was updated on November 6, 2026 and WhatTheFreq on November 5, 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.*