# aquaPlanner vs Dio Smart

The clearest difference is price: Dio Smart at Free against aquaPlanner's $2.99. aquaPlanner's advantage is update cadence (every 3 weeks vs every 3 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Dio Smart is free to download; aquaPlanner costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

aquaPlanner ships an update every 3 weeks, Dio Smart every 3 months. The most recent releases landed on September 30, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | aquaPlanner | Dio Smart |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[3.3 (60 ratings)](https://appshunter.io/ios/app/aquaplanner/id411731366/reviews)** | — |
| Number of ratings | **60** | — |
| Positive reviews | 52.2% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 3 months |
| Monetization | Paid | — |
| Size | 101 MB | 190 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Jose Weeks](https://appshunter.io/developer/411731369) | [Janybek Kubat](https://appshunter.io/developer/1656368422) |

## What reviewers say

### aquaPlanner

[App page](https://appshunter.io/ios/app/aquaplanner/id411731366)

Manage your aquarium with ease. Schedule maintenance, log water tests, and track inhabitants and equipment. Never forget a task with helpful notifications and calculators.

**Highlights:** Maintenance scheduling with notifications, Water test logging, Inhabitant and equipment logs, Calculators, Data export to CSV, Multiple aquarium support

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

**In-app purchases:** none

**What reviewers like**

- 👍 Helpful for tracking aquarium maintenance
- 📊 Useful graphing and charting of water parameters
- 🗓️ Effective reminders and alerts system
- 🗂️ Comprehensive inventory of equipment, inhabitants, and more
- 🔍 Detailed information on aquatic species

**What reviewers complain about**

- 🐛 Frequent crashes and bugs, especially after updates
- 🔄 Lack of updates and feature improvements over time
- 🤔 Limited customization options for water parameters and alerts
- 📚 Missing many common fish and plant species in database
- 🔒 Unreliable iCloud sync and data loss issues

**Reported bugs**

- App crashes when trying to add or update test results
- Water parameter graphs not displaying correctly
- Alerts not working as expected or disappearing
- Issues with data syncing and information being lost
- Compatibility problems with newer iOS versions

**Requested features**

- Add ability to upload and view tank photos
- Expand water parameter tracking and graphing capabilities
- Improve syncing and backup options across devices
- Allow more customization of alerts and maintenance schedules
- Expand database of aquatic species and equipment


### Dio Smart

[App page](https://appshunter.io/ios/app/dio-smart/id6444718743)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is aquaPlanner free?

aquaPlanner costs $2.99, with no in-app purchases.

### Is Dio Smart free?

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

### Do aquaPlanner or Dio Smart have ads?

Neither aquaPlanner nor Dio Smart shows ads.

### Which is updated more often, aquaPlanner or Dio Smart?

aquaPlanner ships an update every 3 weeks, and Dio Smart every 3 months. Most recently, aquaPlanner was updated on September 30, 2026 and Dio Smart on September 10, 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.*