# TD Snap® vs BITS Lab

TD Snap® and BITS Lab both sit at 4.1 stars, but that hides the real split: 67% of BITS Lab's written reviews are positive against 31% of TD Snap®'s. BITS Lab also leads on in-app purchases (none vs 10) and iOS requirement (9.0 vs 13.0). TD Snap®'s advantage is ratings volume (856 vs 14). On price, rating, 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. BITS Lab asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.1 for TD Snap® against 4.2 for BITS Lab. That said, the two scores are not equally well evidenced: TD Snap® has 856 ratings behind it against 14, so its average is the more settled of the two. Written reviews are what separate them: 31% of TD Snap®'s written reviews are positive against 67% of BITS Lab's.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 18, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | TD Snap® | BITS Lab |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.1 (856 ratings)](https://appshunter.io/ios/app/td-snap/id1072799231/reviews) | **[4.2 (14 ratings)](https://appshunter.io/ios/app/bits-lab-start/id1198658004/reviews)** |
| Number of ratings | **856** | 14 |
| Positive reviews | 30.7% of reviews | **66.7% 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 | 66 MB |
| Requires iOS | 13.0 | **9.0** |
| Devices | iPad | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Tobii Dynavox LLC](https://appshunter.io/developer/446210474) | [Tara McAllister](https://appshunter.io/developer/1198658003) |

## 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


### BITS Lab

[App page](https://appshunter.io/ios/app/bits-lab-start/id1198658004)

This app uses visual biofeedback to help users, particularly children and adolescents, correct speech errors related to the American English 'r' sound. It offers guided practice, adaptive challenges, and progress tracking for effective speech therapy.

**Highlights:** Visual biofeedback for speech correction, Tutorial for biofeedback interpretation, Free play mode for 'r' practice, Adaptive quest mode for increasing difficulty, Quiz mode for progress tracking, Visual rewards for improvement, Clinician dashboard for progress monitoring

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is TD Snap® free?

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

### Is BITS Lab free?

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

### Which has better reviews, TD Snap® or BITS Lab?

BITS Lab is rated higher. TD Snap® averages 4.1 out of 5 from 856 ratings, while BITS Lab averages 4.2 from 14 ratings.

### Do TD Snap® or BITS Lab have ads?

Neither TD Snap® nor BITS Lab shows ads.

### Which is updated more often, TD Snap® or BITS Lab?

TD Snap® ships an update every 2 months, and BITS Lab every 2 months. Most recently, TD Snap® was updated on October 18, 2026 and BITS Lab on October 11, 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.*