# ABA vs TD Snap®

The clearest difference is price: TD Snap® at Free against ABA's $0.99. TD Snap® also leads on update cadence (every 2 months vs every 72 months) and ratings volume (810 vs 32). ABA's advantage is review sentiment (67% vs 31%) and in-app purchases (none vs 10). On rating and ads there is nothing between them.

TD Snap® is free to download; ABA costs $0.99 up front. TD Snap® sells 10 in-app purchases, starting at $4.99 per month. ABA asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.2 for ABA against 4.2 for TD Snap®. That said, the two scores are not equally well evidenced: TD Snap® has 810 ratings behind it against 32, so its average is the more settled of the two. Written reviews are what separate them: 67% of ABA's written reviews are positive against 31% of TD Snap®'s.

ABA ships an update every 72 months, TD Snap® every 2 months. The most recent releases landed on September 28, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | ABA | TD Snap® |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [4.2 (32 ratings)](https://appshunter.io/ios/app/aba-problem-solving-what-does-not-belong/id450990906/reviews) | [4.2 (810 ratings)](https://appshunter.io/ios/app/td-snap/id1072799231/reviews) |
| Number of ratings | 32 | **810** |
| Positive reviews | **66.7% of reviews** | 30.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 72 months | **Every 2 months** |
| Monetization | **Free** | Subscription |
| Size | 37 MB | 3.4 GB |
| Requires iOS | **8.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Innovative Mobile Apps](https://appshunter.io/developer/420345423) | [Tobii Dynavox LLC](https://appshunter.io/developer/446210474) |

## What reviewers say

### ABA

[App page](https://appshunter.io/ios/app/aba-problem-solving-what-does-not-belong/id450990906)

This app helps young children develop problem-solving skills by identifying the item that doesn't belong in a group of four. It uses real photographs and customizable content to teach concepts like colors, shapes, and characteristics in an engaging, multi-sensory way.

**Highlights:** Identify the item that doesn't belong, Teaches colors, shapes, and characteristics, Add custom voice and items, Uses real photographs, Dynamic difficulty adjustment, Multi-sensory learning

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Great for special needs students
- 💡 Highly customizable options
- 🧠 Good for critical thinking
- 🧩 Useful for problem-solving
- 🗣️ Helps with vocabulary

**What reviewers complain about**

- 🐛 App stalls after updates
- 🐛 Crashes on concept level
- 🐛 Voiceover mispronunciation
- 🐛 Inappropriate image (marijuana leaf)
- 🐛 Visuals are horrible/ugly

**Reported bugs**

- Won't let me out of touch and learn segment
- Stalls after 3 or 4 pages
- Crashes on the concept level
- Voiceover mispronounces 'belong'
- One of the shapes is a marijuana leaf

**Requested features**

- Add accuracy percentage counter for documentation
- Add data collection system
- Create something with more vivid colors
- Make it much harder
- Make it more interesting to a toddler


### 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


## Frequently asked questions

### Is ABA free?

ABA costs $0.99, with no in-app purchases.

### Is TD Snap® free?

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

### Which has better reviews, ABA or TD Snap®?

ABA and TD Snap® are both rated 4.2 out of 5 on the App Store, from 32 and 810 ratings respectively.

### Do ABA or TD Snap® have ads?

Neither ABA nor TD Snap® shows ads.

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

ABA ships an update every 72 months, and TD Snap® every 2 months. Most recently, ABA was updated on September 28, 2026 and TD Snap® on October 1, 2026.

---

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