# Avicenna Research vs reLapse

The clearest difference is in-app purchases: Avicenna Research at none against reLapse's 3. Avicenna Research also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. reLapse sells 3 in-app purchases, starting at $5.69 per month. Avicenna Research asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 10 days. The most recent releases landed on November 2, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Avicenna Research | reLapse |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.6 (5 ratings)](https://appshunter.io/ios/app/avicenna-research/id1137173052/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 54.5% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 10 days | Every 10 days |
| Monetization | Free | — |
| Size | 217 MB | 38 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Avicenna Research Inc.](https://appshunter.io/developer/1137173051) | [Canburak Tuemer](https://appshunter.io/developer/1891741915) |

## What reviewers say

### Avicenna Research

[App page](https://appshunter.io/ios/app/avicenna-research/id1137173052)

Contribute to scientific discovery by participating in research studies directly from your smartphone. Share your anonymized data, answer surveys, and provide location or exercise habits if you choose. You maintain full control over your data and can withdraw at any time.

**Highlights:** Participate in health and psychology research, Share anonymized data with scientists, Answer short survey questions, Optionally provide location and exercise data, Full control over your data, Ability to drop out or delete data anytime, Integrates with the Health app

**Features:** Vision Pro support

**In-app purchases:** none


### reLapse

[App page](https://appshunter.io/ios/app/relapse-mindful-tracking/id6804451405)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $5.69 | per month |
| Pro Annual | $28.49 | per year |
| Pro Lifetime | $71.00 | one-time |


## Frequently asked questions

### Is Avicenna Research free?

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

### Is reLapse free?

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

### Do Avicenna Research or reLapse have ads?

reLapse shows ads; Avicenna Research does not.

### Which is updated more often, Avicenna Research or reLapse?

Avicenna Research ships an update every 10 days, and reLapse every 10 days. Most recently, Avicenna Research was updated on November 2, 2026 and reLapse on November 6, 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.*