# ASTC vs TRAILASAUR

The clearest difference is review sentiment: TRAILASAUR at 100% against ASTC's 0%. TRAILASAUR also leads on update cadence (every 8 days vs every 11 months) and rating (5.0 vs 4.7). ASTC's advantage is in-app purchases (none vs 6) and ads (none vs shown). On price there is nothing between them.

Both are free to download. TRAILASAUR sells 6 one-off in-app purchases. ASTC asks for nothing beyond the download.

TRAILASAUR holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: ASTC has 36 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 0% of ASTC's written reviews are positive against 100% of TRAILASAUR's.

ASTC ships an update every 11 months, TRAILASAUR every 8 days. The most recent releases landed on October 16, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | ASTC | TRAILASAUR |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (36 ratings)](https://appshunter.io/ios/app/astc/id6466039138/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/trailasaur/id6751261364/reviews)** |
| Number of ratings | **36** | 3 |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 11 months | **Every 8 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 87 MB | 228 MB |
| Requires iOS | **15.5** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [ASSOCIATION OF SCIENCE-TECHNOLOGY CENTERS, INC.](https://appshunter.io/developer/1437372010) | [TRAILASAUR LLC](https://appshunter.io/developer/1820239594) |

## What reviewers say

### ASTC

[App page](https://appshunter.io/ios/app/astc/id6466039138)

Enhance your conference experience by accessing schedules, speaker details, and exhibitor information. Take notes directly on presentation slides in real-time and share insights with attendees via in-app messaging, tweeting, or email.

**Highlights:** View conference schedule, Access speaker and exhibitor details, Take real-time notes on slides, Draw directly on presentation slides, In-app messaging with attendees, Share information via tweet/email

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

**In-app purchases:** none


### TRAILASAUR

[App page](https://appshunter.io/ios/app/trailasaur/id6751261364)

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:** Apple Wallet

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Mini Trailbite Pouch | $0.99 | one-time |
| Small Trailbite Pack (10,000 TB) | $4.99 | one-time |
| Medium Trailbite Pack (24,000 TB) | $9.99 | one-time |
| Large Trailbite Pack | $19.99 | one-time |
| Titan Trailbite Pack (130,000 TB) | $49.99 | one-time |
| Mythic Trailbite Hoard (280,000 TB) | $99.99 | one-time |


## Frequently asked questions

### Is ASTC free?

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

### Is TRAILASAUR free?

TRAILASAUR is free to download, with in-app purchases available.

### Which has better reviews, ASTC or TRAILASAUR?

TRAILASAUR is rated higher. ASTC averages 4.7 out of 5 from 36 ratings, while TRAILASAUR averages 5.0 from 3 ratings.

### Do ASTC or TRAILASAUR have ads?

TRAILASAUR shows ads; ASTC does not.

### Which is updated more often, ASTC or TRAILASAUR?

ASTC ships an update every 11 months, and TRAILASAUR every 8 days. Most recently, ASTC was updated on October 16, 2026 and TRAILASAUR on October 2, 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.*