# TD Snap® vs Vivi User App

The clearest difference is rating: TD Snap® at 4.1 against Vivi User App's 3.5. TD Snap® also leads on ratings volume (866 vs 11) and review sentiment (31% vs 13%). Vivi User App's advantage is in-app purchases (none vs 10) and device support (3 vs 1). On price, update cadence and ads there is nothing between them.

Both are free to download. TD Snap® sells 10 in-app purchases, starting at $4.99 per month. Vivi User App asks for nothing beyond the download.

TD Snap® holds the better App Store score, 4.1 against 3.5. That said, the two scores are not equally well evidenced: TD Snap® has 866 ratings behind it against 11, so its average is the more settled of the two. Written reviews point the same way: 31% of TD Snap®'s written reviews are positive against 13% of Vivi User App's.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 24, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | TD Snap® | Vivi User App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (866 ratings)](https://appshunter.io/ios/app/td-snap/id1072799231/reviews)** | [3.5 (11 ratings)](https://appshunter.io/ios/app/vivi-user-app/id1582121124/reviews) |
| Number of ratings | **866** | 11 |
| Positive reviews | **30.7% of reviews** | 12.5% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Subscription | **Free** |
| Size | 3.4 GB | 34 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Tobii Dynavox LLC](https://appshunter.io/developer/446210474) | [Vivi Australia](https://appshunter.io/developer/1057434825) |

## What reviewers say

### TD Snap®

[App page](https://appshunter.io/ios/app/td-snap/id1072799231)

This communication software assists individuals with speech and language disabilities by offering symbol-supported and text-based communication options. It features customizable page sets and editing tools, accessible via touch, eye gaze, and switch access. A subscription is required after a trial period.

**Highlights:** Symbol-supported and text-based page sets, Customizable editing tools, Touch, eye gaze, and switch access, Picture Communication Symbols library, Visual schedules and timers, Cloud-based content syncing

**Features:** Family Sharing

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Gateway Monthly | $4.99 | per month |
| PODD Monthly | $4.99 | per month |
| Metacom Monthly | $4.99 | per month |
| Speaking Upgrade Monthly | $9.99 | per month |
| Acapela Voices | $39.99 | one-time |
| Nuance Voices | $39.99 | one-time |
| Speaking Upgrade | $49.99 | one-time |
| METACOM Symbols | $49.99 | one-time |
| PODD Page Sets | $149.99 | one-time |
| Gateway Page Sets | $149.99 | one-time |

**What reviewers like**

- 🚀 Easy to use
- 👍 Customizable
- 🚀 Intuitive navigation
- 👍 Helpful supports and features
- 🚀 Flexible and robust

**What reviewers complain about**

- 🔒 Subscription model for voice
- 🐛 Voice issues after updates
- 💰 Expensive subscription
- 🔒 Removing previously paid features
- 🐛 Crashes and bugs

**Reported bugs**

- Voice disappearing after updates
- Crashes on launch
- Incompatibility with iPad Pro
- Inability to restore purchased content

**Requested features**

- Ability to change undo symbol
- Link to ACCIL image database
- Ability to set user age for appropriate vocabulary
- More robust core vocabulary
- Easier grammar modeling


### Vivi User App

[App page](https://appshunter.io/ios/app/vivi-user-app/id1582121124)

This tool allows seamless real-time sharing and display of information from any device. Enhance collaboration and engagement by annotating, capturing, and saving content wirelessly from anywhere in the room.

**Highlights:** Real-time information sharing, Wireless display and annotation, Capture and save content, Cross-device compatibility, Enhanced collaboration, Room-wide accessibility

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is TD Snap® free?

TD Snap® is free to download, with in-app purchases available.

### Is Vivi User App free?

Vivi User App is free to download, with no in-app purchases.

### Which has better reviews, TD Snap® or Vivi User App?

TD Snap® is rated higher. TD Snap® averages 4.1 out of 5 from 866 ratings, while Vivi User App averages 3.5 from 11 ratings.

### Do TD Snap® or Vivi User App have ads?

Neither TD Snap® nor Vivi User App shows ads.

### Which is updated more often, TD Snap® or Vivi User App?

TD Snap® ships an update every 2 months, and Vivi User App every 2 months. Most recently, TD Snap® was updated on October 24, 2026 and Vivi User App on October 9, 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.*