# KIRO vs Tether

The clearest difference is in-app purchases: KIRO at none against Tether's 2. KIRO also leads on ratings volume (25 vs 3). On price, rating, review sentiment and update cadence there is nothing between them.

Both are free to download. Tether sells 2 in-app purchases, starting at $9.99 per month. KIRO asks for nothing beyond the download.

Tether holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: KIRO has 25 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 95% of KIRO's written reviews are positive against 100% of Tether's.

KIRO ships an update every 2 weeks, Tether fortnightly. The most recent releases landed on November 8, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | KIRO | Tether |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (25 ratings)](https://appshunter.io/ios/app/kiro-chiropractic-adjustments/id6475482372/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/tether-personal-growth/id6762101899/reviews)** |
| Number of ratings | **25** | 3 |
| Positive reviews | 94.7% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Fortnightly |
| Monetization | Subscription | **Freemium** |
| Size | 75 MB | 44 MB |
| Requires iOS | 16.4 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Kiro Health, Inc.](https://appshunter.io/developer/1724222343) | [Dennis Corsi](https://appshunter.io/developer/1892916134) |

## What reviewers say

### KIRO

[App page](https://appshunter.io/ios/app/kiro-chiropractic-adjustments/id6475482372)

Access advanced chiropractic care with affordable monthly memberships. Book appointments, view health records, and track your progress across multiple NYC studios. Receive personalized treatment from licensed chiropractors.

**Highlights:** Monthly membership for unlimited visits, Nervous system scans, Access to all studios, Appointment booking and management, Health record viewing, Personalized chiropractic care

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

**In-app purchases:** none


### Tether

[App page](https://appshunter.io/ios/app/tether-personal-growth/id6762101899)

This AI-powered coach helps you reconnect with your personal growth intentions. It listens to your shared experiences over time to reflect your progress and keep you aligned with your values and desired identity.

**Highlights:** AI-powered personal growth coach, Focus on identity and values, Personalized reflection of progress, Builds a long-term user profile, Daily conversational nudges, Starts with a single intention word

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tether — Monthly | $9.99 | per month |
| Tether — Annual | $79.00 | per year |


## Frequently asked questions

### Is KIRO free?

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

### Is Tether free?

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

### Which has better reviews, KIRO or Tether?

Tether is rated higher. KIRO averages 4.8 out of 5 from 25 ratings, while Tether averages 5.0 from 3 ratings.

### Do KIRO or Tether have ads?

Neither KIRO nor Tether shows ads.

### Which is updated more often, KIRO or Tether?

KIRO ships an update every 2 weeks, and Tether fortnightly. Most recently, KIRO was updated on November 8, 2026 and Tether on October 31, 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.*