# MN Executive Function Scale vs TD Snap®

The clearest difference is rating: TD Snap® at 4.1 against MN Executive Function Scale's 3.0. TD Snap® also leads on ratings volume (856 vs 2) and iOS requirement (13.0 vs 15.1). MN Executive Function Scale's advantage is in-app purchases (none vs 10) and review sentiment (50% vs 31%). On price, update cadence, ads and monetization model there is nothing between them.

Both are free to download. TD Snap® sells 10 in-app purchases, starting at $4.99 per month. MN Executive Function Scale asks for nothing beyond the download.

TD Snap® holds the better App Store score, 4.1 against 3.0. That said, the two scores are not equally well evidenced: TD Snap® has 856 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 50% of MN Executive Function Scale's written reviews are positive against 31% of TD Snap®'s, so the app with the better star average is not the one people write more warmly about.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 2, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | MN Executive Function Scale | TD Snap® |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (2 ratings)](https://appshunter.io/ios/app/mn-executive-function-scale/id967184252/reviews) | **[4.1 (856 ratings)](https://appshunter.io/ios/app/td-snap/id1072799231/reviews)** |
| Number of ratings | 2 | **856** |
| Positive reviews | **50.0% of reviews** | 30.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Subscription | Subscription |
| Size | 31 MB | 3.4 GB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPad | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Reflection Sciences LLC](https://appshunter.io/developer/967184251) | [Tobii Dynavox LLC](https://appshunter.io/developer/446210474) |

## What reviewers say

### MN Executive Function Scale

[App page](https://appshunter.io/ios/app/mn-executive-function-scale/id967184252)

This app provides a brief, standardized assessment of executive function skills for ages 2 and up. Developed by neuroscience experts, it uses an engaging virtual card-sorting game to measure cognitive flexibility, working memory, and inhibitory control. Results are accessible via a secure web portal for tracking growth and early detection of difficulties.

**Highlights:** Standardized executive function assessment, Virtual card-sorting game, Adaptive to individual ability, Measures cognitive flexibility, working memory, inhibitory control, Secure web portal for score access and tracking, Early detection of EF difficulties, Formative assessment for educational programs

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

**In-app purchases:** none


### 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 MN Executive Function Scale free?

MN Executive Function Scale is free to download, with no in-app purchases.

### Is TD Snap® free?

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

### Which has better reviews, MN Executive Function Scale or TD Snap®?

TD Snap® is rated higher. MN Executive Function Scale averages 3.0 out of 5 from 2 ratings, while TD Snap® averages 4.1 from 856 ratings.

### Do MN Executive Function Scale or TD Snap® have ads?

Neither MN Executive Function Scale nor TD Snap® shows ads.

### Which is updated more often, MN Executive Function Scale or TD Snap®?

MN Executive Function Scale ships an update every 2 months, and TD Snap® every 2 months. Most recently, MN Executive Function Scale was updated on October 2, 2026 and TD Snap® on October 13, 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.*