# Hailer vs AVID Deer

The clearest difference is update cadence: Hailer at every 2 months against AVID Deer's every 4 months. AVID Deer's advantage is iOS requirement (12.4 vs 16.6). On price, ads, in-app purchases and device support there is nothing between them.

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

Hailer ships an update every 2 months, AVID Deer every 4 months. The most recent releases landed on October 13, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Hailer | AVID Deer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 4 months |
| Size | 108 MB | 20 MB |
| Requires iOS | 16.6 | **12.4** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hailer, Inc.](https://appshunter.io/developer/1071083258) | [University of Tennessee](https://appshunter.io/developer/390185553) |

## What reviewers say

### Hailer

[App page](https://appshunter.io/ios/app/hailer/id1239211971)

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

**In-app purchases:** none


### AVID Deer

[App page](https://appshunter.io/ios/app/avid-deer/id1578311148)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Hailer free?

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

### Is AVID Deer free?

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

### Do Hailer or AVID Deer have ads?

Neither Hailer nor AVID Deer shows ads.

### Which is updated more often, Hailer or AVID Deer?

Hailer ships an update every 2 months, and AVID Deer every 4 months. Most recently, Hailer was updated on October 13, 2026 and AVID Deer on October 7, 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.*