Comparison

SFY vs TRAILASAUR

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

SFY

Experience the full capabilities of an advanced Augmentative and Alternative Communication (AAC) app for 30 days. This trial allows users to explore extensive vocabulary, programming options, and helpful features to assess communication improvement before committing to the full version.

Highlights
  • 30-day free trial
  • Full vocabulary access (~5000 words)
  • Full programming capabilities
  • Search and history features
  • Hold That Thought feature
  • Voice options
Features
Read full description

IMPORTANT NOTE: THIS IS NOT A SUBSCRIPTION! AFTER THE 30 DAYS, IT JUST STOPS WORKING. You don't have to cancel it...YOU AREN'T GOING TO BE CHARGED. If Speak for Yourself is the right choice, purchase the full version! It’s FINALLY here! This is the answer to everyone who has been hesitant to purchase the full version of Speak for Yourself without being able to try it. SFY-Lite 2.0 (and above) gives you access to the full Speak for Yourself app capabilities* for a 30 day FREE trial!  SfY-Lite includes access to the almost 5000 word vocabulary, full programming capabilities, the unparalleled search feature, history feature, Hold That Thought, and voice options. By doing this, AAC users, SLPs, other professionals, and family members are able to use the intuitive programming and features of Speak for Yourself and access the library of almost 11,000 Smarty Symbols®. SFY-Lite is not intended to be an individual's permanent AAC language system. It was designed to determine if an individual is able to access the button size, activate the buttons, and use Speak for Yourself to improve communication.  The free trial will only last for 30 days. After the 30 days, it will go back to the static main screen where it started. HOWEVER, you will be able to access your history data and your vocabulary file, even after the trial ends. That means that any of your programming and customization will be saved so that you can transfer it into the full version. Speak for Yourself was designed by two ASHA-certified speech-language pathologists (SLPs) with an extensive knowledge of AAC devices and implementation. We're very excited to give EVERYONE the ability to have the full functionality of Speak for Yourself in their hands and homes for free! You have nothing to lose and every reason to take 30 days and give it a try. With the release of a new and improved SFY-Lite, we invite you to join us in our mission to change the world...one voice at a time. *The only features that are not available in SfY-Lite are Acapela premium voice offered in the full version as in-app purchases and multi-user capabilities (the full version can hold 40 different user vocabulary files).

About

TRAILASAUR

This app combines high-performance outdoor activity tracking with a live paleontology news feed. Log your rides, hikes, and more to earn rewards, and stay updated on the latest fossil discoveries and research.

Highlights
  • Real-time GPS tracking
  • Expeditions and quests
  • Earn rewards and unlock artifacts
  • Bike setup and PSI calculators
  • Strava sync
  • Paleontology news feed
  • Offline field guide
Features
Read full description

You know it was the asteroid. You ride anyway. TRAILASAUR is built for the kind of person who tracks descents, debates K–Pg boundary evidence, and thinks both matter. It is a high-performance outdoor tracker and a live paleontology intelligence network in the same app, by design. THE TRAIL SIDE Turn every ride, hike, ski run, and walk into progression. TRAILASAUR logs your activity, rewards your effort, and builds a record of your outdoor life that actually means something. • Real-time GPS tracking for rides, hikes, skiing, and walks • Expeditions: multi-stage quests tied to real-world activity • Earn TrailBites and unlock Relics in the Artifact Vault • Spend TrailBites in the Tavern Shop on real gear and accessories • Bike setup logging for fork, shock, tires, drivetrain, and pressure • Smart PSI calculators for tires and suspension • Strava sync with improved export reliability • Post-activity summaries with stats, maps, and badges • Trekker DNA: your rider profile, refined over every session • Themes, profile customization, arcade games, and weekly nudges From the bike park to the summit to the skin track, every adventure counts toward your legacy. THE DINO NEWS SIDE Most outdoor apps stop at the trailhead. TRAILASAUR goes 66 million years further. The Dino News Network is a live intelligence feed that tracks the paleontology world so you do not have to. Four channels, updated daily, straight from the frontier: • Discoveries: new species, taxonomy revisions, and fossil finds • Breakthroughs: peer-reviewed research and preprint alerts • Museums: exhibits, collections, acquisitions, and openings • Media: documentaries, podcasts, books, and drops Tap the meteor. Stay informed. Know things other people do not. ONE APP. TWO OBSESSIONS. The trail is out there. So is the science of everything that roamed it before you. TRAILASAUR is the only place that treats both seriously. Ride. Roam. Roar. What’s New in This Version This update focuses on new themes, major bug fixes, and overall polish across Trailasaur. New Themes Customize the look of the app with new theme support and updated visual polish across key screens. Field Guide Improvements The Local Field Guide continues to grow, making it easier to explore the land beneath your tires. • Park intel with history and location context • National Park Service descriptions, alerts, and activity info • Nearby wildlife observations grouped by species • Offline guide support for deeper backcountry access Stability and Bug Fixes We fixed a range of issues across recording, saving, navigation, and general app flow to make Trailasaur smoother and more reliable. Polish Updates Additional refinements to Strava sync, UI consistency, and core experience throughout the app.

Screenshots

SFY4 screens
TRAILASAUR4 screens

Verdict

The call

The clearest difference is rating: TRAILASAUR at 5.0 against SFY's 4.2. TRAILASAUR also leads on review sentiment (100% vs 58%) and update cadence (every 8 days vs every 52 months). SFY's advantage is ads (none vs shown) and ratings volume (151 vs 3). On price, in-app purchases and monetization model 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. SFY sells 1 one-off in-app purchase and TRAILASAUR sells 6 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

TRAILASAUR holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: SFY has 151 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 58% of SFY's written reviews are positive against 100% of TRAILASAUR's.

UpkeepUpdate frequency

SFY ships an update every 52 months, TRAILASAUR every 8 days. The most recent releases landed on October 22, 2026 and October 2, 2026 respectively.

Scorecard7 real differences · 3 level
SFY versus TRAILASAUR: the parameters behind the verdict, then further details
ParameterSFYTRAILASAUR
PriceFreeFree
Rating4.2 (151 ratings)5.0 (3 ratings) — better
Positive reviews58.3% of reviews100.0% of reviews — better
Number of ratings151 — better3
Update frequencyEvery 52 monthsEvery 8 days — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.6 — better26.0
Further details — not scored
Size1.4 GB228 MB
Age rating4+4+
DeveloperSpeak for Yourself LLCTRAILASAUR LLC

Customer experience

SFY

All ratings150 ratings
Positive77.3%
Neutral4.7%
Negative18.0%
Written reviews12 reviews
Positive58.3%
Neutral0.0%
Negative41.7%

TRAILASAUR

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

SFY

One-time1
  • 30-day TrialFree
6 purchases

TRAILASAUR

One-time6
  • Mini Trailbite Pouch$0.99
  • Small Trailbite Pack (10,000 TB)$4.99
  • Medium Trailbite Pack (24,000 TB)$9.99
Show 3 more
  • Large Trailbite Pack$19.99
  • Titan Trailbite Pack (130,000 TB)$49.99
  • Mythic Trailbite Hoard (280,000 TB)$99.99

Questions

Is SFY free?
SFY is free to download, with in-app purchases available.
Is TRAILASAUR free?
TRAILASAUR is free to download, with in-app purchases available.
Which has better reviews, SFY or TRAILASAUR?
TRAILASAUR is rated higher. SFY averages 4.2 out of 5 from 151 ratings, while TRAILASAUR averages 5.0 from 3 ratings.
Do SFY or TRAILASAUR have ads?
TRAILASAUR shows ads; SFY does not.
Which is updated more often, SFY or TRAILASAUR?
SFY ships an update every 52 months, and TRAILASAUR every 8 days. Most recently, SFY was updated on October 22, 2026 and TRAILASAUR on October 2, 2026.

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