# TrialMax App vs SLS

TrialMax App and SLS are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

TrialMax App ships an update every 3 weeks, SLS every 2 weeks. The most recent releases landed on October 23, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | TrialMax App | SLS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.5 (100 ratings)](https://appshunter.io/ios/app/trialmax-app/id1002332076/reviews)** | — |
| Number of ratings | **100** | — |
| Positive reviews | 5.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 41 MB | 372 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Signant Health Oy](https://appshunter.io/developer/885378600) | [Amy Hermansen](https://appshunter.io/developer/6780837759) |

## What reviewers say

### TrialMax App

[App page](https://appshunter.io/ios/app/trialmax-app/id1002332076)

Collect data from patients and caregivers in clinical trials for new medicines. Access study-specific questionnaires on the go, with reminders to help you follow the study protocol. Your privacy and anonymity are ensured.

**Highlights:** Patient and caregiver data collection, Study-specific questionnaires, On-the-go data entry, Study protocol reminders, Privacy and anonymity assured, Easy-to-use interface

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

**In-app purchases:** none


### SLS

[App page](https://appshunter.io/ios/app/sls-tx/id6780837757)

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

**In-app purchases:** none


## Frequently asked questions

### Is TrialMax App free?

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

### Is SLS free?

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

### Do TrialMax App or SLS have ads?

Neither TrialMax App nor SLS shows ads.

### Which is updated more often, TrialMax App or SLS?

TrialMax App ships an update every 3 weeks, and SLS every 2 weeks. Most recently, TrialMax App was updated on October 23, 2026 and SLS on October 28, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*