# TouchChat Discover vs Voice Spectrogram Logger

The clearest difference is rating: TouchChat Discover at 3.8 against Voice Spectrogram Logger's 3.0. TouchChat Discover also leads on update cadence (every 2 months vs every 15 months) and review sentiment (21% vs 0%). Voice Spectrogram Logger's advantage is monetization model (free vs free with in-app purchases) and iOS requirement (15.5 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. TouchChat Discover sells 11 one-off in-app purchases and Voice Spectrogram Logger sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

TouchChat Discover holds the better App Store score, 3.8 against 3.0. That said, the two scores are not equally well evidenced: TouchChat Discover has 102 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 21% of TouchChat Discover's written reviews are positive against 0% of Voice Spectrogram Logger's.

TouchChat Discover ships an update every 2 months, Voice Spectrogram Logger every 15 months. The most recent releases landed on November 1, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | TouchChat Discover | Voice Spectrogram Logger |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.8 (102 ratings)](https://appshunter.io/ios/app/touchchat-discover/id427022529/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/voice-spectrogram-logger/id1277134462/reviews) |
| Number of ratings | **102** | 2 |
| Positive reviews | **21.4% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 15 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 2.7 GB | 7 MB |
| Requires iOS | 18.0 | **15.5** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Prentke Romich Company](https://appshunter.io/developer/474446992) | [Yukiko Iwai](https://appshunter.io/developer/965630131) |

## What reviewers say

### TouchChat Discover

[App page](https://appshunter.io/ios/app/touchchat-discover/id427022529)

This app offers a risk-free way to explore a powerful communication solution before committing to a purchase. It provides a free trial of all features or access to lite-tech boards for individuals with speech difficulties.

**Highlights:** 30-day free trial of full features, Explore lite-tech WordPower boards, Augmentative and Alternative Communication (AAC), Customizable vocabulary and messages, Built-in voice synthesizer, Multiple language options

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 30-Day Free Trial | Free | one-time |
| Upgrade to TouchChat HD Lite | $9.99 | one-time |
| Talk-About Vocabulary | $44.99 | one-time |
| PCS Symbol Library | $49.99 | one-time |
| Arabic Vocabulary Set | $49.99 | one-time |
| iShare 1-Year 2GB Subscription | $59.99 | one-time |
| Pixon® for TouchChat | $79.99 | one-time |
| Gateway© Vocabulary | $149.99 | one-time |
| WordPower Vocabulary | $149.99 | one-time |
| Upgrade - TouchChat HD | $149.99 | one-time |
| Upgrade TouchChat HD WordPower | $299.99 | one-time |

**What reviewers like**

- 👍 Useful for visual language-learning
- 👍 Handy backup communication tool
- 👍 Access to all vocabulary sets
- 👍 Good for practice and training

**What reviewers complain about**

- 💸 Expensive pricing
- 🔇 No speech output
- 🐛 Bugs and glitches
- 📉 Lagging performance
- 🚫 No audio

**Reported bugs**

- App crashed when editing
- New update broke paid license
- Upgrade not working, logs out
- App glitches and shuts down
- App edits pictures without consent

**Requested features**

- Add scientific calculator with exponents, complex numbers & roots
- Make it less expensive
- Add teenage voices back
- Add voice to free trial


### Voice Spectrogram Logger

[App page](https://appshunter.io/ios/app/voice-spectrogram-logger/id1277134462)

Visualize voice frequencies in a spectrogram from 20-2500Hz. Adjust display with sliders and log recordings to export as PNG files. Functions fully offline and supports background processing.

**Highlights:** Real-time voice spectrogram display, Adjustable frequency range (20-2500Hz), Zoomable spectrogram with pinch gestures, Customizable spectrogram gradation, Logging mode with history export, Offline functionality

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $3.99 | one-time |


## Frequently asked questions

### Is TouchChat Discover free?

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

### Is Voice Spectrogram Logger free?

Voice Spectrogram Logger is free to download, with in-app purchases available.

### Which has better reviews, TouchChat Discover or Voice Spectrogram Logger?

TouchChat Discover is rated higher. TouchChat Discover averages 3.8 out of 5 from 102 ratings, while Voice Spectrogram Logger averages 3.0 from 2 ratings.

### Do TouchChat Discover or Voice Spectrogram Logger have ads?

Neither TouchChat Discover nor Voice Spectrogram Logger shows ads.

### Which is updated more often, TouchChat Discover or Voice Spectrogram Logger?

TouchChat Discover ships an update every 2 months, and Voice Spectrogram Logger every 15 months. Most recently, TouchChat Discover was updated on November 1, 2026 and Voice Spectrogram Logger on October 24, 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.*