# Oovium vs Flash Checklist

The clearest difference is rating: Oovium at 5.0 against Flash Checklist's 3.7. Oovium also leads on monetization model (free vs paid) and update cadence (every 6 weeks vs every 24 months). On price, ratings volume, ads and in-app purchases there is nothing between them.

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

Oovium holds the better App Store score, 5.0 against 3.7. Both are backed by a comparable volume of ratings — 5 and 9 respectively. Written reviews point the same way: 65% of Oovium's written reviews are positive against 50% of Flash Checklist's.

Oovium ships an update every 6 weeks, Flash Checklist every 24 months. The most recent releases landed on September 14, 2026 and July 31, 2026 respectively.

## The numbers

| Metric | Oovium | Flash Checklist |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/oovium/id336573328/reviews)** | [3.7 (9 ratings)](https://appshunter.io/ios/app/flash-checklist/id991595690/reviews) |
| Number of ratings | 5 | **9** |
| Positive reviews | **64.7% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 24 months |
| Monetization | **Free** | Paid |
| Size | 7 MB | 3 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Aepryus Software](https://appshunter.io/developer/336573331) | [传毅 苏](https://appshunter.io/developer/849104720) |

## What reviewers say

### Oovium

[App page](https://appshunter.io/ios/app/oovium/id336573328)

This app is a novel calculation sandbox that combines the functionality of calculators, spreadsheets, concept maps, and programming languages into a single, visually intuitive interface. It aims to make complex computing abilities accessible to a wider audience through explicit visual representations.

**Highlights:** Calculation sandbox, Visual programming interface, Spreadsheet functionality (GridBub), Concept mapping (TextBub), Custom function definition (MechBub), Object instances (InstBub)

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 💡 Innovative concept
- 💡 Creative approach to calculations
- 💡 Visualizing problems and solutions
- 💡 Useful for prototyping and debugging
- 💡 Good for "what-if" analysis

**What reviewers complain about**

- 🐛 Poor documentation
- 🐛 Trial and error learning curve
- 🐛 Mac version unclear
- 🐛 Subscription too expensive
- 🐛 Apple-exclusive

**Reported bugs**

- Subscription not working
- Crashes on launch on iPad
- Links to Dropbox no longer work
- Update killed everything, crashes on first screen
- Crashes regularly

**Requested features**

- Better terminology
- Vastly better documentation
- Pay-once option
- Lower purchase price ($3.99 or less)
- Graphing and graphics capabilities


### Flash Checklist

[App page](https://appshunter.io/ios/app/flash-checklist/id991595690)

Easily create and print your checklists directly from your mobile device. This app focuses on the simple task of transforming your digital lists into printable formats.

**Highlights:** Create checklists, Print checklists, Mobile list creation, Printable formats

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

**In-app purchases:** none


## Frequently asked questions

### Is Oovium free?

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

### Is Flash Checklist free?

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

### Which has better reviews, Oovium or Flash Checklist?

Oovium is rated higher. Oovium averages 5.0 out of 5 from 5 ratings, while Flash Checklist averages 3.7 from 9 ratings.

### Do Oovium or Flash Checklist have ads?

Neither Oovium nor Flash Checklist shows ads.

### Which is updated more often, Oovium or Flash Checklist?

Oovium ships an update every 6 weeks, and Flash Checklist every 24 months. Most recently, Oovium was updated on September 14, 2026 and Flash Checklist on July 31, 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.*