# MetricWire vs Aviva

The clearest difference is review sentiment: Aviva at 100% against MetricWire's 33%. Aviva also leads on rating (4.3 vs 2.3). MetricWire's advantage is iOS requirement (12.0 vs 15.1). On price, ratings volume, update cadence and ads there is nothing between them.

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

Aviva holds the better App Store score, 4.3 against 2.3. Both are backed by a comparable volume of ratings — 7 and 15 respectively. Written reviews point the same way: 33% of MetricWire's written reviews are positive against 100% of Aviva's.

MetricWire ships an update monthly, Aviva every 2 weeks. The most recent releases landed on October 30, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | MetricWire | Aviva |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.3 (7 ratings)](https://appshunter.io/ios/app/metricwire/id1117108543/reviews) | **[4.3 (15 ratings)](https://appshunter.io/ios/app/aviva/id1480869629/reviews)** |
| Number of ratings | 7 | **15** |
| Positive reviews | 33.3% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 weeks** |
| Monetization | Free | Free |
| Size | 27 MB | 39 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [MetricWire Inc.](https://appshunter.io/developer/815033540) | [Oui Therapeutics, Inc](https://appshunter.io/developer/1480857300) |

## What reviewers say

### MetricWire

[App page](https://appshunter.io/ios/app/metricwire/id1117108543)

This platform empowers researchers to create intricate studies and allows participants to respond via their smartphones. It enables the collection of high-quality real-world behavioral data without requiring any coding knowledge.

**Highlights:** Design complex studies, Participant smartphone responses, Passive location tracking, Real-world behavioral data, No coding required

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

**In-app purchases:** none


### Aviva

[App page](https://appshunter.io/ios/app/aviva/id1480869629)

This app uses science-based methods to help users manage difficult thoughts. It features a personalized program with a chatbot to identify issues and create tailored exercises and resources. Access tools, practice techniques, and receive encouragement to understand and cope with troubling thoughts.

**Highlights:** Science-based thought management, Personalized program, Interactive chatbot, Animated explanations, Real-life video examples, Skill-building tools

**In-app purchases:** none


## Frequently asked questions

### Is MetricWire free?

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

### Is Aviva free?

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

### Which has better reviews, MetricWire or Aviva?

Aviva is rated higher. MetricWire averages 2.3 out of 5 from 7 ratings, while Aviva averages 4.3 from 15 ratings.

### Do MetricWire or Aviva have ads?

Neither MetricWire nor Aviva shows ads.

### Which is updated more often, MetricWire or Aviva?

MetricWire ships an update monthly, and Aviva every 2 weeks. Most recently, MetricWire was updated on October 30, 2026 and Aviva on October 24, 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.*