# ChartLogs vs RateFlow

The clearest difference is in-app purchases: ChartLogs at none against RateFlow's 1. ChartLogs also leads on update cadence (every 9 days vs every 3 months). RateFlow's advantage is iOS requirement (13.0 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. RateFlow sells 1 one-off in-app purchase. ChartLogs asks for nothing beyond the download.

ChartLogs ships an update every 9 days, RateFlow every 3 months. The most recent releases landed on October 29, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | ChartLogs | RateFlow |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 9 days** | Every 3 months |
| Monetization | — | Free with in-app purchases |
| Size | 10 MB | 31 MB |
| Requires iOS | 18.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [株式会社Cavemen.jp](https://appshunter.io/developer/1227633346) | [庆鸿 林](https://appshunter.io/developer/1558629938) |

## What reviewers say

### ChartLogs

[App page](https://appshunter.io/ios/app/chartlogs/id6754192827)

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

**In-app purchases:** none


### RateFlow

[App page](https://appshunter.io/ios/app/rateflow-currency-converter/id6762538061)

Easily convert currencies with real-time rates and a built-in calculator. Pin your favorite currencies for quick access and view them at a glance with a home screen widget. Works offline using cached rates.

**Highlights:** 150+ world currencies, Convert all currencies at once, Built-in calculator keypad, Home screen widget, Quick search and add currencies, Offline access with cached rates, Customizable appearance

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $4.99 | one-time |


## Frequently asked questions

### Is ChartLogs free?

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

### Is RateFlow free?

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

### Do ChartLogs or RateFlow have ads?

Both ChartLogs and RateFlow show ads.

### Which is updated more often, ChartLogs or RateFlow?

ChartLogs ships an update every 9 days, and RateFlow every 3 months. Most recently, ChartLogs was updated on October 29, 2026 and RateFlow on October 12, 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.*