# Evessio vs Synergy Chiropractic

The clearest difference is update cadence: Synergy Chiropractic at every 2 weeks against Evessio's every 22 months. Synergy Chiropractic also leads on iOS requirement (16.0 vs 18.0). Evessio's advantage is device support (3 vs 1). 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.

Evessio ships an update every 22 months, Synergy Chiropractic every 2 weeks. The most recent releases landed on October 26, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Evessio | Synergy Chiropractic |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 22 months | **Every 2 weeks** |
| Size | 1 MB | 99 MB |
| Requires iOS | 18.0 | **16.0** |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Version Two Limited](https://appshunter.io/developer/1437189756) | [SYNERGY CRW Ltd](https://appshunter.io/developer/1742737367) |

## What reviewers say

### Evessio

[App page](https://appshunter.io/ios/app/evessio/id1437189757)

**In-app purchases:** none


### Synergy Chiropractic

[App page](https://appshunter.io/ios/app/synergy-chiropractic/id6499201754)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is Evessio free?

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

### Is Synergy Chiropractic free?

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

### Do Evessio or Synergy Chiropractic have ads?

Neither Evessio nor Synergy Chiropractic shows ads.

### Which is updated more often, Evessio or Synergy Chiropractic?

Evessio ships an update every 22 months, and Synergy Chiropractic every 2 weeks. Most recently, Evessio was updated on October 26, 2026 and Synergy Chiropractic on October 16, 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.*