# BTWATTCH vs Radar Chart

The clearest difference is ads: BTWATTCH at none against Radar Chart's shown. BTWATTCH also leads on update cadence (every 2 months vs every 11 months) and iOS requirement (9.0 vs 14.0). On price, in-app purchases and device support there is nothing between them.

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

BTWATTCH ships an update every 2 months, Radar Chart every 11 months. The most recent releases landed on May 16, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | BTWATTCH | Radar Chart |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (251 ratings)](https://appshunter.io/ios/app/radar-chart/id1500178620/reviews)** |
| Number of ratings | — | **251** |
| Positive reviews | — | 71.7% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 2 months** | Every 11 months |
| Monetization | — | Ad-supported |
| Size | 1 MB | 19 MB |
| Requires iOS | **9.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [RATOC Systems, Inc.](https://appshunter.io/developer/568725272) | [Kazuya Fujita](https://appshunter.io/developer/1358322690) |

## What reviewers say

### BTWATTCH

[App page](https://appshunter.io/ios/app/btwattch/id887695333)

**Features:** macOS Compatibility

**In-app purchases:** none


### Radar Chart

[App page](https://appshunter.io/ios/app/radar-chart/id1500178620)

Easily create radar charts directly on your mobile device. Input chart title, number of items, item names, and data to generate your chart. Save or copy your creations with simple operations.

**Highlights:** Create radar charts, Input chart title, Define number of items, Enter item names and data, Save chart as image, Copy chart to clipboard

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

**In-app purchases:** none

**What reviewers like**

- 👍 Simple and easy to use
- 🚀 Straightforward interface
- 💡 Helpful for creating charts
- 🚀 Quick export options

**What reviewers complain about**

- 🐛 Occasional glitches and crashes
- 🔒 Forced to write a review to access all features
- 💡 Limited customization options (colors, axis values)
- 💡 Unable to save multiple charts

**Reported bugs**

- Login screen freezes
- Incompatible with older devices

**Requested features**

- Allow changing maximum values and input increments
- Add option to layer multiple data sets on one chart
- Implement a dark mode or better aesthetic design


## Frequently asked questions

### Is BTWATTCH free?

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

### Is Radar Chart free?

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

### Do BTWATTCH or Radar Chart have ads?

Radar Chart shows ads; BTWATTCH does not.

### Which is updated more often, BTWATTCH or Radar Chart?

BTWATTCH ships an update every 2 months, and Radar Chart every 11 months. Most recently, BTWATTCH was updated on May 16, 2026 and Radar Chart on September 25, 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.*