# かんたんハッシュタグ vs Audio SA

The clearest difference is in-app purchases: かんたんハッシュタグ at none against Audio SA's 1. かんたんハッシュタグ also leads on ads (none vs shown). Audio SA's advantage is update cadence (every 6 months vs every 23 months) and device support (3 vs 1). On price there is nothing between them.

Both are free to download. Audio SA sells 1 one-off in-app purchase. かんたんハッシュタグ asks for nothing beyond the download.

かんたんハッシュタグ ships an update every 23 months, Audio SA every 6 months. The most recent releases landed on October 17, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | かんたんハッシュタグ | Audio SA |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 23 months | **Every 6 months** |
| Monetization | — | Free with in-app purchases |
| Size | 3 MB | 5 MB |
| Requires iOS | 17.6 | **15.6** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Nakanishi Toshihiko](https://appshunter.io/developer/712843914) | [Yasuyoshi Ota](https://appshunter.io/developer/1500357652) |

## What reviewers say

### かんたんハッシュタグ

[App page](https://appshunter.io/ios/app/id1547201508)

**Features:** macOS Compatibility

**In-app purchases:** none


### Audio SA

[App page](https://appshunter.io/ios/app/audio-sa/id6444715596)

This app analyzes audio waveforms to create visual voiceprints as TFFT images. It offers extensive customization for FFT analysis, including adjustable ranges, sizes, scales, and window functions. A simple waveform generator is also included for learning purposes.

**Highlights:** TFFT voiceprint image generation, High-resolution image export, Customizable FFT analysis settings, Adjustable audio waveform analysis range, Simple waveform generator (sine, square, noise), Multiple FFT sizes and window functions

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ads. | $3.99 | one-time |


## Frequently asked questions

### Is かんたんハッシュタグ free?

かんたんハッシュタグ is free to download, with no in-app purchases.

### Is Audio SA free?

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

### Do かんたんハッシュタグ or Audio SA have ads?

Audio SA shows ads; かんたんハッシュタグ does not.

### Which is updated more often, かんたんハッシュタグ or Audio SA?

かんたんハッシュタグ ships an update every 23 months, and Audio SA every 6 months. Most recently, かんたんハッシュタグ was updated on October 17, 2026 and Audio SA on October 25, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*