# AIA Guide to Boston vs TrailSync

The clearest difference is update cadence: TrailSync at daily against AIA Guide to Boston's every 8 months. AIA Guide to Boston's advantage is device support (3 vs 1) and iOS requirement (15.1 vs 18.6). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

AIA Guide to Boston ships an update every 8 months, TrailSync daily. The most recent releases landed on October 6, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | AIA Guide to Boston | TrailSync |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (16 ratings)](https://appshunter.io/ios/app/aia-guide-to-boston/id1136848990/reviews)** | — |
| Number of ratings | **16** | — |
| Positive reviews | 81.8% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Daily** |
| Monetization | Free | — |
| Size | 150 MB | 3 MB |
| Requires iOS | **15.1** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Thomas Pounds](https://appshunter.io/developer/1541934979) | [David Kelen](https://appshunter.io/developer/1796712157) |

## What reviewers say

### AIA Guide to Boston

[App page](https://appshunter.io/ios/app/aia-guide-to-boston/id1136848990)

Explore Boston's architecture and urban landscape with this comprehensive digital guide. Discover over 1,200 landmarks, historical buildings, and parks, with GPS-enabled features and integrated directions. Perfect for residents and visitors interested in design and history.

**Highlights:** 1,200+ landmarks, buildings, and parks, Neighborhood and architect guides, GPS-enabled site discovery, Integrated directions, Walking and site tours, Color images and descriptions

**Features:** macOS Compatibility

**In-app purchases:** none


### TrailSync

[App page](https://appshunter.io/ios/app/trailsync-your-hike/id6757078438)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is AIA Guide to Boston free?

AIA Guide to Boston is free to download, with no in-app purchases.

### Is TrailSync free?

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

### Do AIA Guide to Boston or TrailSync have ads?

Neither AIA Guide to Boston nor TrailSync shows ads.

### Which is updated more often, AIA Guide to Boston or TrailSync?

AIA Guide to Boston ships an update every 8 months, and TrailSync daily. Most recently, AIA Guide to Boston was updated on October 6, 2026 and TrailSync on October 17, 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.*