Sight Words Sentence Builder vs TD Snap®
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sight Words Sentence Builder
This app helps young learners master essential sight words by building sentences. It offers an interactive and engaging way for children to practice word recognition and sentence construction, fostering reading fluency. Progress is tracked with a report card to monitor improvement.
- Sight word recognition training
- Sentence construction practice
- Interactive word arrangement
- Progress monitoring via report card
- Engaging graphics and rewards
- Repetitive play for mastery
Read full descriptionHide full description
Sight Words make up about 50 percent of regular English text. To become a great reader, a child must learn to automatically recognize Sight Words. Reading without this essential skill is as slow and frustrating as driving a car with a flat tire. Introducing Sight Words Sentence Builder—a proven learning tool for young readers. This kid-friendly app trains children to quickly recognize all Dolch Sight Words and build sentences from them. The Sentence Builder is not a mindless game that will be thrown out once all levels have been finished. The app can be played over and over until you see no more "blind spots" in your child’s Sight Words collection. Each level contains simple, common phrases that are constructed using Sight Words. As children hear each phrase, they must arrange words in the correct order to progress through the game. In other words, the app teaches Sight Words by "doing" rather than "viewing," which makes a world of difference! The key advantage of Sight Words Sentence Builder is that the game is interactive and quite exciting. Colorful graphics along with lovable animals and other "rewards" keep children curious and engaged, motivating them to keep improving. You can monitor your child’s progress on a report card, which shows recent scores and times played. With this information, you will know how your children are doing without standing behind them. Help your child learn a vital life skill. Start by downloading Sight Words Sentence Builder today!
TD Snap®
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.
- 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
Read full descriptionHide full description
TD Snap® is a flexible, robust communication software for people with speech and language disabilities such as autism, cerebral palsy and aphasia. Created by Tobii Dynavox, a leader in augmentative and alternative communication (AAC), TD Snap provides a choice of evidence-based, professionally developed page sets designed to meet different communication needs and preferences, with both symbol-supported and text-based options. TD Snap includes easy-to-use editing tools to create a personalized experience, and is accessible via touch, eye gaze and switch access methods. A monthly subscription is required to enable speech following a 1-month trial period. Tobii Dynavox offers complementary resources to help communicators, caregivers, and professionals succeed with TD Snap. These resources can be found by visiting myTobiiDynavox.com or tobiidynavox.com. Have you purchased a Tobii Dynavox device and looking to use your companion TD Snap license on an iOS device? Download this app and log into myTobiiDynavox in the start-up wizard. Customizable TD Snap Page Sets: • Core First: A symbol-supported page set enabling a path to literacy at any stage of language development, now also available in High contrast • Motor Plan: A symbol-supported page set enabling efficient language acquisition at any age, custom designed for both touch and eye gaze • Express: A symbol-supported page set to help people express themselves using theme-based phrases and words, now also available in bilingual Spanish/English • Text: A page set for those who are literate or transitioning from symbol supports to literacy • Scanning: A page set for those who use scanning as their primary access method, • Aphasia: A page set to help adults with aphasia communicate while also supporting language recovery , now also available in bilingual Spanish/English • PODD*: A page set based on the Pragmatic Organization Dynamic Display vocabulary strategy, developed by AAC expert Gayle Porter • Gateway*: A page set based on the Gateway vocabulary strategy, developed by Joan Bruno *Denotes in-app purchase of an additional monthly subscription per page or symbol set. Developed by a third party. Powerful Set of Integrated TD Snap Tools: • Editing: An intuitive editing tool to help customize buttons to meet a communicator’s unique needs • Diversity: A variety of diversity settings that let you customize skin tone, hair shades, and more • PCS: A built-in library of over 75,000 Picture Communication Symbols translated into over 25 languages • Search: A search bar to locate words and symbols with an easy and accessible path to find them • Visual Supports: A set of supports like visual schedules, timers, and scripts • Google Assistant: An integrated tool enabling symbol-supported access to Google Assistant • QuickFires: A set of commonly used pre-programmed phrases to make communication smoother • myTobiiDynavox: A cloud-based resource for backing up, sharing, and syncing customized content. How Subscriptions Work Following the 1-month free trial, your Apple ID payment method on file will automatically be charged monthly unless you cancel 24 hours before the trial ends. Subsequent monthly payments will be charged to your Apple ID payment method 24 hours before the end of each period. Your subscriptions are managed in account settings on the App Store. TD Snap® is a trademark and registered trademark of Tobii Dynavox AB. Tobii Dynavox cannot guarantee compatibility of TD Snap with any non-Tobii Dynavox brand of hardware and will not offer technical support for compatibility issues. All downloads are governed by TD Snap License Agreement for Download.
Screenshots
Verdict
The clearest difference is price: TD Snap® at Free against Sight Words Sentence Builder's $7.99. TD Snap® also leads on update cadence (every 2 months vs every 7 months) and ratings volume (867 vs 77). Sight Words Sentence Builder's advantage is review sentiment (73% vs 31%) and in-app purchases (none vs 10). On rating, ads and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
TD Snap® is free to download; Sight Words Sentence Builder costs $7.99 up front. TD Snap® sells 10 in-app purchases, starting at $4.99 per month. Sight Words Sentence Builder asks for nothing beyond the download.
Sight Words Sentence Builder holds the better App Store score, 4.3 against 4.1. That said, the two scores are not equally well evidenced: TD Snap® has 867 ratings behind it against 77, so its average is the more settled of the two. Written reviews point the same way: 73% of Sight Words Sentence Builder's written reviews are positive against 31% of TD Snap®'s.
Sight Words Sentence Builder ships an update every 7 months, TD Snap® every 2 months. The most recent releases landed on October 23, 2026 and October 26, 2026 respectively.
| Parameter | Sight Words Sentence Builder | TD Snap® |
|---|---|---|
| Price | $7.99 | Free — better |
| Rating | 4.3 (77 ratings) — better | 4.1 (867 ratings) |
| Positive reviews | 73.0% of reviews — better | 30.7% of reviews |
| Number of ratings | 77 | 867 — better |
| Update frequency | Every 7 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Subscription |
| Devices | iPhone, iPad, iPod — better | iPad |
| Requires iOS | 12.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 160 MB | 3.4 GB |
| Age rating | 4+ | 4+ |
| Developer | Sierra Vista Software | Tobii Dynavox LLC |
Customer experience
Sight Words Sentence Builder
TD Snap®
Bugs and requests
Sight Words Sentence Builder
Not enough reviews yet to summarise bugs or requests.
TD Snap®
Reported bugs
4 issues- Voice disappearing after updates
- Crashes on launch
- Incompatibility with iPad Pro
- Inability to restore purchased content
Requested features
5 requests- 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
In-app purchases
Sight Words Sentence Builder
No in-app purchases
TD Snap®
- Gateway Monthly1 Month trial$4.991 Month
- PODD Monthly1 Month trial$4.991 Month
- Metacom Monthly1 Month trial$4.991 Month
Show 1 moreShow fewer
- Speaking Upgrade Monthly1 Month trial$9.991 Month
- Acapela Voices$39.99
- Nuance Voices$39.99
- Speaking Upgrade$49.99
Show 3 moreShow fewer
- METACOM Symbols$49.99
- PODD Page Sets$149.99
- Gateway Page Sets$149.99
Questions
Is Sight Words Sentence Builder free?
Is TD Snap® free?
Which has better reviews, Sight Words Sentence Builder or TD Snap®?
Do Sight Words Sentence Builder or TD Snap® have ads?
Which is updated more often, Sight Words Sentence Builder or TD Snap®?
Other comparisons















