# Aqua Docs vs pass knots

The clearest difference is rating: pass knots at 5.0 against Aqua Docs's 4.8. pass knots also leads on iOS requirement (13.0 vs 15.1). Aqua Docs's advantage is ratings volume (8 vs 1). On price, review sentiment, 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.

pass knots holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Aqua Docs has 8 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

Aqua Docs ships an update every 3 weeks, pass knots fortnightly. The most recent releases landed on August 4, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | Aqua Docs | pass knots |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (8 ratings)](https://appshunter.io/ios/app/aqua-docs/id6746091301/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/pass-knots/id6772271671/reviews)** |
| Number of ratings | **8** | 1 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | Free | Free |
| Size | 90 MB | 19 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Octoro Limited](https://appshunter.io/developer/1636631583) | [DEVNET SYSTEMS LIMITED](https://appshunter.io/developer/1841073484) |

## What reviewers say

### Aqua Docs

[App page](https://appshunter.io/ios/app/aqua-docs/id6746091301)

Manage your aquarium with this free platform. Track parameters, dosages, and livestock, and engage with a community of fellow enthusiasts. Earn rewards for contributions and share your experience.

**Highlights:** Tank Management, Parameter Tracking, Dosage Tracking, Live Stock Profiles, Community Database, User Rewards

**Features:** macOS Compatibility

**In-app purchases:** none


### pass knots

[App page](https://appshunter.io/ios/app/pass-knots/id6772271671)

Securely store all your login credentials, website URLs, and private notes in an encrypted vault. Share sensitive information with trusted individuals via email and quickly find any saved entry with instant search functionality.

**Highlights:** Encrypted password vault, Secure credential storage, Share login details securely, Instant search functionality, Clean and simple interface, Store unlimited passwords

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

**In-app purchases:** none


## Frequently asked questions

### Is Aqua Docs free?

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

### Is pass knots free?

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

### Which has better reviews, Aqua Docs or pass knots?

pass knots is rated higher. Aqua Docs averages 4.8 out of 5 from 8 ratings, while pass knots averages 5.0 from 1 ratings.

### Do Aqua Docs or pass knots have ads?

Neither Aqua Docs nor pass knots shows ads.

### Which is updated more often, Aqua Docs or pass knots?

Aqua Docs ships an update every 3 weeks, and pass knots fortnightly. Most recently, Aqua Docs was updated on August 4, 2026 and pass knots on September 11, 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.*